CRC ® -Ultra Beta Detector Manual- Revision E

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Tc99m

OK? Y or N

Figure 5-46 Nuclide with No Impurity Data Verification Screen
If the nuclide shown is correct, press YES. Figure 5-49 Impurity Data fp Entry Screen will
appear showing the selected nuclide.
If the nuclide shown is not correct, press NO. Figure 5-45 Impurity Data Choose Nuclide
Screen will re-appear.
If Impurity Data already exists for the selected nuclide, the Impurity Data Verification screens
(Figure 5-47 First Impurity Data Nuclide Verification Screen and Figure 5-48 Second
Impurity Data Nuclide Verification Screen) will appear. The examples shown are for Sr89.

SR89
FP: 0.0060
FC: 5.50

OK? Y or N

Figure 5-47 First Impurity Data Nuclide Verification Screen
If the displayed data is correct, press YES. Figure 5-48 Second Impurity Data Nuclide
Verification Screen will appear.
If the displayed data is not correct, press NO. Figure 5-49 Impurity Data fp Entry Screen will
appear.

April 12 BETA DETECTOR NITIALIZATION 5 - 23

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

IMPURITY IN
Sr89

% EFF: 0.0200
CH: 4

OK? Y or N

Figure 5-48 Second Impurity Data Nuclide Verification Screen

If the displayed data is correct, press YES. Figure 5-45 Impurity Data Choose Nuclide
Screen will appear.

If the displayed data is not correct, press NO. Figure 5-51 Impurity Efficiency Input Screen
will appear.

Sr89
ENTER FP

Prin in Imp. ROI/
Prin in Prin ROI

_

Figure 5-49 Impurity Data fp Entry Screen

Input the fp value. FP is the ratio of the counts in the impurity channel(s) to the counts in the
principal channel(s) for the principal nuclide (e.g. Sr89).

Note: The minimum value that can be input is 0.0001. The maximum value that can be
input is 0.9999.

Press ENTER after the value is input. Figure 5-50 Contamination Data fc Entry Screen will
appear.

Sr89
ENTER FC

Impurity in Prin ROI/
Impurity in Imp. ROI

_

Figure 5-50 Contamination Data fc Entry Screen

5 - 24 BETADETECTOR INITIALIZATION April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Input the fc data. FC is the ratio of the counts in the principal channel(s) to the counts in the
impurity channel(s) for impurity (e.g. Sr85).

Note: The minimum value that can be input is 0.0001. The maximum value that can be
input is 99.99.

Press ENTER after the value is input. Figure 5-51 Impurity Efficiency Input Screen will
appear.

Enter IMPURITY
% EFFICIENCY

_

Figure 5-51 Impurity Efficiency Input Screen

Input the Impurity Efficiency and press ENTER. Figure 5-52 Impurity Channel Selection
screen will appear.

Note: The minimum value that can be input is 0.0001. The maximum value that can be
input is 99.00.

Y selects channels

 CH 1 CH 4
CH 2 CH 5
CH 3 CH 6

ENTER when finished

Figure 5-52 Impurity Channel Selection

Choose the Impurity Channel(s) that will be used. If previous data has been input, the
previous selection will be highlighted.

Use the UP () and DOWN () arrows to move the pointer (right arrow ) so that it points
to the channel to be selected (or de-selected) and then press the Y key.

Press ENTER when the desired channels are selected. Figure 5-53 Impurity Data fp and fc
Verification Screen will appear.

April 12 BETA DETECTOR NITIALIZATION 5 - 25

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

β

Sr89
FP: 0.0060
FC: 5.50

OK? Y or N

Figure 5-53 Impurity Data fp and fc Verification Screen

If the displayed data is correct, press YES. Figure 5-54 Impurity Efficiency and Channels
Verification Screen will appear.

If the displayed data is not correct, press NO. Figure 5-45 Impurity Data Choose Nuclide
Screen will re-appear.

IMPURITY IN β

Sr89
% EFF: 0.0200
CH: 4

OK? Y or N

Figure 5-54 Impurity Efficiency and Channels Verification Screen

If the displayed data is correct, press YES. Figure 5-45 Impurity Data Choose Nuclide
Screen will re-appear.

If the displayed data is not correct, press NO. Figure 5-45 Impurity Data Choose Nuclide
Screen will re-appear.

5 - 26 BETADETECTOR INITIALIZATION April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

USER KEY ASSIGNMENT

The USER Keys are a quick way to select a nuclide. A nuclide may be assigned to each key.

Up to 5 User Keys can be assigned for use with the Beta Detector.
Press MENU from the Beta Measurement Screen.

Select SETUP. Input your password (last 3 digits of the readout serial number) and press
ENTER. Figure 5-2 Beta Setup Menu will appear.

Select USER KEYS. Figure 5-55 Beta User Key Selection will appear.

β

SELECT
USER KEY
U1 TO U5

Any Other Key To

Continue Setup

Figure 5-55 Beta User Key Selection

Press any other key (except a USER key or the HOME key) to exit User Key Assignment and
return to Figure 5-2 Beta Setup Menu.

Current Assignment Display
Press the USER key to which a nuclide is to be assigned. Figure 5-56 User Key Verification
screen will appear showing the current key assignment. In the example, Co57 has been
assigned to U1.

Note: From the factory, all USER keys are set to NONE.

U1: Co57

OK? Y OR N

Figure 5-56 User Key Verification
If no assignment has been made, the word “NONE” will appear after the key name.

April 12 BETA DETECTOR NITIALIZATION 5 - 27

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

If the assignment is correct, press YES and Figure 5-55 Beta User Key Selection will re-
appear.
If the assignment is not correct, press NO to change the assignment. Figure 5-57 Nuclide
Name Assignment Screen will appear.

Nuclide Name Assignment

SPECIFY
NUCLIDE

_

Figure 5-57 Nuclide Name Assignment Screen

Press the alphanumeric keys corresponding to the nuclide name. The number on each key
will appear. For example, if Cs137 is entered, 27137 will appear. Press ENTER when the
nuclide has been specified.
To change the assignment to NONE, press ENTER without specifying a nuclide.

Assignment Confirmation
Figure 5-56 User Key Verification screen will re-appear with the nuclide name that was just
input.
If the assignment is correct, press YES. Figure 5-55 Beta User Key Selection screen will re-
appear.
If the assignment is not correct, press NO. Figure 5-57 Nuclide Name Assignment Screen
will re-appear.

5 - 28 BETADETECTOR INITIALIZATION April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

CHAPTER 6

DIAGNOSTICS

GENERAL

Diagnostics performs functions to test the integrity of the system. Also, if a printer is attached
to the system, a report will be printed containing the Beta Detector Data.

Press MENU from the Chamber Measurement Screen. The Chamber Main Menu will appear.

Note: When pressing MENU from a measurement screen for an R Chamber, the R
Chamber Main Menu will appear. When pressing MENU from a measurement screen
for a PET Chamber, the PET Chamber Main Menu will appear. Examples shown are
for R Chambers.

1. Inventory R

2. Calculations
3. Diagnostics
4. Test Menu
5. Setup
6. Save to Card

Figure 6-1a R Chamber Main Menu

P

1. Calculations
2. Diagnostics
3. Test Menu
4. Setup
5. Save to Card

Figure 6-1b PET Chamber Main Menu
From the Chamber Main Menu, select DIAGNOSTICS. The Diagnostics Menu will appear:

January 07 DIAGNOSTICS 6-1

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

DIAGNOSTICS R

1. System
2. Device List
3. Chamber Data
4. Well Data
5. Beta Data

Figure 6-2 Diagnostics Menu

Note: WELL DATA will only appear if there is a Well Counter attached to the system. BETA
DATA will only appear if there is a Beta Detector attached to the system.

DEVICE LIST

The Device List is used to view and/or print (if a printer is attached to the system) the system
configuration and the basic setup values for each device in the system.

To view and/or print the Device List, select DEVICE LIST from Figure 6-2 Diagnostics Menu.

If no printer is attached to the system, the Figure 6-3 R Chamber Display, Figure 6-4 PET
Chamber Display, Figure 6-5 Well Counter Display, and Figure 6-6 Beta Detector Display
will be shown without prompting. (In the example screens shown, there is an R Chamber, a
PET Chamber, a Well Counter and a Beta Detector attached to the system.)

Press any key (except HOME) to continue to the next screen. After viewing the last screen,
Figure 6-2 Diagnostics Menu will re-appear.

Chamber #:1
S/N: 123456 R
Resp. Corr.:
0.05% Co60 HIGH
Nominal: 155.0V

Any Key to Continue

Figure 6-3 R Chamber Display

6-2 DIAGNOSTICS January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Chamber #:2
S/N: 789346 PET
Resp. Corr.:
1.20% Co60 LOW
Nominal: 500.0V

Any Key to Continue

Figure 6-4 PET Chamber Display

Counter: Well
S/N: 098632
Cal Fac: 1.010

Any Key to Continue

Figure 6-5 Well Counter Display

Counter: Beta
S/N: 892673
Cal Fac: 0.993

Any Key to Continue

Figure 6-6 Beta Detector Display
If a printer attached to the system, the list will be printed and Figure 6-7 View List Screen will
appear.

View List?
Yes or No

January 07 Figure 6-7 View List Screen 6-3

DIAGNOSTICS

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

The following data is printed:
• Chamber Information: Chamber number, Chamber serial number, Chamber type,
Response Correction and Nominal Voltage.
• Well Counter Information (if attached): Well Serial number and Calibration Factor.
• Beta Detector Information (if attached): Beta Serial number and Calibration Factor.

If there is no desire to view the list on the screen, press NO. Figure 6-2 Diagnostics Menu
will re-appear.

If viewing the list is desired, press YES. Figure 6-3 R Chamber Display screen will appear.

BETA DATA

Note: A printer must be attached to the system in order to print the Beta Data.

To print information about the Beta Detector, press MENU from the Chamber Measurement
Screen. The Chamber Main Menu will appear.

From the Chamber Main Menu, select DIAGNOSTICS. Figure 6-2 Diagnostics Menu will
appear:

Select BETA DATA from Figure 6-2 Diagnostics Menu and the Beta Data will begin printing.

The following data is printed:
• Beta Detector Serial number and Calibration Factor
• The background, impurity and precision limits.
• A list of the nuclides, their efficiencies and the channels used in measurements and
correction factors.
• The Impurity data.
• The User Key assignments.
• The Test Source data.

6-4 DIAGNOSTICS January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

CHAPTER 7

ACCEPTANCE & QUALITY
ASSURANCE TESTS

GENERAL

To insure proper operation of the CRC®-Ultra Beta Detector, the following tests should be
preformed at the indicated intervals.

ACCEPTANCE TESTS
Perform a Background Measurement as stated in CHAPTER 8:BETA DETECTOR TESTS;

SECTION:BACKGROUND.

Verify that the Well Counter data is setup as stated in CHAPTER 5:BETA DETECTOR

INITIALIZATION.

If a printer is attached to the system, from the Diagnostics Menu, select BETA DATA to print

a report of the Beta Detector information. Verify the information is correct.

If a printer is not attached to the system, from the Diagnostics Menu, select DEVICE LIST to

view the Beta Detector information. Verify the information is correct.

QUALITY ASSURANCE TESTS

Beta Detector Test

The Beta Detector Test should be performed every day. It cannot be performed unless Beta
Background has been measured for the current day. (Reference CHAPTER 8:BETA
DETECTOR TESTS)

If there is a printer connected to the system, the test results will automatically be printed at
the end of all source measurements.

January 07 ACCEPTANCE & QUALITY ASSURANCE TESTS 7-1

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Contamination Test

This test is normally performed at the end of each workday. At the very least, it should be
performed once per week. To test for contamination of the Beta Detector inserts:

1. Make sure that the inserts are in the Beta Detector and there is no source in either
well.

2. Perform a Background Measurement.

3. When counting is completed, record the displayed reading.

4. Remove the inserts from the Beta Detector

5. Perform another Background Measurement.

6. When counting is completed, record the displayed reading.

7. Subtract the activity in step 6 from the activity in step 3. This is the amount of
contamination of the inserts.

8. Should the inserts exhibit contamination greater than 25% of the normal Background
Measurement, they should be decontaminated or replaced.

7-2 ACCEPTANCE & QUALITY ASSURANCE TESTS January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

CHAPTER 8

BETA DETECTOR TESTS

GENERAL

This section describes measuring the Beta Detector Background, performing the Beta
Detector Auto Calibration and performing the Beta Detector Test.

BACKGROUND

Any presence of contamination may be confirmed by counting without a sample in the
sample chamber.

When the BETA key is pressed from the Chamber Measurement Screen, the system checks
to see if the background has been measured for the current day.

Note: No measurements can be carried out without performing a Daily Background.

First Background of the Day

If the background hasn’t been measured for the current day but has been previously
measured and stored, the option to use the previously stored background measurement is
presented as shown in Figure 8-1 Use Last Background Screen.

β

BACKGROUND NOT
MEASURED TODAY

USE LAST BKG?

Figure 8-1 Use Last Background Screen

If a new background measurement is preferred, press NO. Figure 8-2 Background
Instruction Screen will appear.

If it is preferred to use the previously saved background measurement, press YES. The Beta
Measurement Screen will appear.

April 12 BETA DETECTOR TESTS 8-1

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

New Background

If the background has never been measured a new background measurement is preferred,
Figure 8-2 Background Instruction Screen will appear.

MEASURE BETA
BACKGROUND
NO SOURCES

MENU key for Setup
or Another key
to Continue

Figure 8-2 Background Instruction Screen

If Setup functions are to be performed, press the MENU key. After MENU is pressed, the
ENTER PASSWORD screen will appear. Input the password (last 3 digits of the readout
serial number) and press ENTER. The Beta Detector Setup Menu will appear.

To return to the Chamber Measurement Screen, press HOME.

To measure the background, press any key except MENU or HOME. Figure 8-4 Background
Measurement Screen will appear.

Background from BKG key
Background can also be measured at any time by pressing BKG key from the Beta Detector
Measurement Screen.

MEASURE BETA
BACKGROUND
NO SOURCES

Any Key to Continue

Figure 8-3 Background Instruction Screen

To measure the background, press any key (except HOME). Figure 8-4 Background
Measurement Screen will appear.

8-2 BETA DETECTOR TESTS April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Background Measurement 20s β

BKG

Press BETA to START

Figure 8-4 Background Measurement Screen

Input the counting period via the numeric keypad and press ENTER. Counting the
background for 20 seconds or longer is recommended.

Note: The minimum count time that can be input is 2 seconds. The maximum count time
that can be input is 9999 seconds.

Press BETA to begin background counting. Figure 8-5 Background Bar Graph Counting
Screen will appear.

k 660 cpm
e 400
V 200 24.00
12.00
100 12.00
84.00
48.00
60.00

Figure 8-5 Background Bar Graph Counting Screen

The Bar Graph shows the remaining counting period and the counting rate per channel. The
display is updated every second.

To end the measurement before the requested time, press BETA.

To abort the measurement, press HOME.

When the measurement is finished, the background counting rate, together with the
precision, is displayed as shown in Figure 8-6 Background Result Screen.

April 12 BETA DETECTOR TESTS 8-3

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

BKG 11:40

ENTER or BETA to SAVE

153.0 cpm
± 21.4 cpm

Figure 8-6 Background Result Screen

If the background is greater than the background limit, the message “TOO HIGH” will appear
in the upper right hand corner and the measurement will not be able to be saved. Verify that
there are no sources of radiation near the detector and re-measure the background. If the
background is still too high, the background limit may be too low for your environment.
Reference CHAPTER 5:BETA DETECTOR INITIALIZATION; SECTION:LIMITS for
instructions to change the background limit.

Press DISPLAY to switch between viewing the Bar Graph and the Result screen.

If a printer is attached to the system,

 press ENTER to save (i.e., store it for future measurements) the data and print a
record the background measurement., or

 press BETA to save (i.e., store it for future measurements) the data and proceed to
the Beta Detector Measurement Screen.

Note: “ENTER” will not be displayed Figure 8-6 Background Result Screen if no printer is
attached.

To abandon the Background Measurement without accepting the background, press HOME.
The Beta Measurement screen will appear. If the measurement is a new Background, the
Chamber Measurement screen will appear. If the measurement is a Background from BKG
key, the Beta Measurement screen will appear.

Note: If HOME is pressed before pressing ENTER or BETA, the result of the new
background measurement will not be stored.

8-4 BETA DETECTOR TESTS April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

AUTO CALIBRATION

The CRC®-Ultra uses an automatic calibration (AUTO CAL) procedure for its Beta Detector
to adjust the high voltage to maintain the correct relationship between energy and channel.

Over time, the amplification characteristics of a photomultiplier tube change. If the gain of the
detector is not adjusted occasionally, the resolution of the detector deteriorates significantly,
making it difficult to identify isotopes correctly. Therefore, it is important to check the gain of
each detector at least once daily.

Auto Calibration must be performed prior to performing Beta Detector Test for the first time
and whenever the Beta Detector Test fails. Auto Calibration is performed with the same
source as in Beta Detector Test.

The calibration is performed automatically by use of a Cs137 source.

From the Beta Measurement screen, press MENU. Figure 8-7 Beta Main Menu will appear.

β

1. Auto Cal
2. Setup
3. Test

Figure 8-7 Beta Main Menu

From Figure 8-7 Beta Main Menu, select AUTO CAL.

If Test Source Data has not been input, Figure 8-8 Enter Test Source Data Screen will
appear.

Enter Data in
Setup
Test Source

Any Key to Continue

Figure 8-8 Enter Test Source Data Screen

Reference CHAPTER 5:BETA DETECTOR INITIALIZATION; SECTION:TEST SOURCE
DATA for instructions for inputting Beta Detector Test Source Data. Press any key (except
HOME) to continue. Figure 8-7 Beta Main Menu will re-appear.

April 12 BETA DETECTOR TESTS 8-5

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

If Test Source Data has been input, Figure 8-9 Cs137 Calibration Instruction Screen will
appear.

AUTO CAL β

Measure Cs137

Any Key to Continue

Figure 8-9 Cs137 Calibration Instruction Screen

Place the Cs137 Test Source in the 10cm well in the Beta Detector and press any key
(except HOME) to continue. Figure 8-10 Calibration Measurement Screen will appear.

CAL 20s β

Press BETA to START

Figure 8-10 Calibration Measurement Screen

The last counting period used for TEST or AUTO CAL is displayed. Use the numeric keypad
to input a different time if desired and press ENTER when finished.

Note: The minimum count time that can be input is 20 seconds. The maximum count time
that can be input is 9999 seconds.

Press BETA to begin Auto Cal. Figure 8-11 Auto Cal in Progress Message appears for
approximately 3 seconds.

CAL 20s β

AUTO CAL
IN PROGRESS
PLEASE WAIT

Figure 8-11 Auto Cal in Progress Message

8-6 BETA DETECTOR TESTS April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Once the counting begins, Figure 8-12 Auto Cal Counting Screen will appear.

kcpm,n
6 0.39
5 40.70
4 49.20
3 61.40
2 39.36
1 80.43

Figure 8-12 Auto Cal Counting Screen

To abort the Auto Cal measurement, press HOME.

AUTO CAL attempts to bring the energy calibration to within 2% of the ideal value.

If the calibration is already within 2%, it attempts to bring the energy calibration to within 1%
of the ideal value.

When the Auto Cal has completed, the calibration results are displayed on the screen and if
a printer is attached to the system, a report is printed.

The displayed report consists of Figure 8-13 Beta Test Activity Deviation and Gain
Reference Screen and Figure 8-14 Beta Test Noise Ratio Screen.

Cs137

Energy
Deviation -0.9%
Gain Ref: 4048

Any Key to Continue

Figure 8-13 Beta Test Activity Deviation and Gain Reference Screen

Press any key (except HOME) to continue to the next result screen. Figure 8-14 Beta Test
Noise Ratio Screen will appear.

April 12 BETA DETECTOR TESTS 8-7

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

AUTO CAL

Ch1/(Ch4+Ch5) 1.19

Any Key to Continue

Figure 8-14 Beta Test Noise Ratio Screen

Press any key (except HOME) to continue. Figure 8-7 Beta Main Menu will appear.

The printed report consists of:

 Energy Deviation: the deviation from the ideal value.

 Ch 1/ (Ch4+Ch5): the ratio of counts in channel 1 to the sum of the counts in
channels 4 and 5.

 Gain Reference: this is related to the High Voltage and has a range of 0 to 8191.

 A graphic representation of the net counts in each channel.

Calibration Failure
When AUTO CAL cannot bring the energy calibration to within 2% of the ideal value, the
message “AUTO CALIBRATION OUT OF RANGE” is displayed. Make sure that the correct
source was used for the calibration and repeat the calibration if necessary.

If the correct source was used, contact Capintec’s only Authorized Service Center (reference
CHAPTER 10:CLEANING AND MAINTENANCE; SECTION:SERVICING) for more
information.

Calibration Method
The calibration is accomplished by adjusting the high voltage until the ratio of the counts in
channels 4 and 5 is within the limits corresponding to an energy deviation of the Cs137
energy peak of ±2%.

8-8 BETA DETECTOR TESTS April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

TEST

The Beta Detector Test should be performed every day. It cannot be performed unless the
Beta Detector Background has been measured for the current day or a previously stored
value was used.

From the Beta Measurement screen, press MENU. Figure 8-7 Beta Main Menu will appear.

From Figure 8-7 Beta Main Menu, select TEST. Figure 8-15 Beta Test Distance Selection
Screen will appear.

β

1. 10 cm
2. 20 cm

Figure 8-15 Beta Test Distance Selection Screen
Select the distance at which the Test will be performed. Figure 8-16 Beta Test Instruction
Screen will appear.

TEST
Measure Cs137

Any Key to Continue

Figure 8-16 Beta Test Instruction Screen
Place the Test Source in the selected well in the Beta Detector and press any key (except
HOME) to continue. Figure 8-17 Beta Test Measurement Screen will appear.

April 12 BETA DETECTOR TESTS 8-9

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

TEST 20s β

Press BETA to START

Figure 8-17 Beta Test Measurement Screen

The last counting period used for TEST or AUTO CAL is displayed. Use the numeric keypad
to input a different time if desired and press ENTER when finished.

Note: The minimum count time that can be input is 20 seconds. The maximum count time
that can be input is 9999 seconds.

Press BETA to begin the test. Figure 8-18 Test Counting Screen will appear.

kcpm,n
6 0.39
5 40.70
4 49.20
3 61.40
2 39.36
1 80.43

Figure 8-18 Test Counting Screen

To abort the Test measurement, press HOME. The Beta Measurement screen will appear.

When the Test has completed, the test results are displayed on the screen and if a printer is
attached to the system, a report is printed.

The displayed report consists of Figure 8-19 Beta Test Activity Deviation Screen, Figure 8-
20 Beta Test Energy Deviation and Gain Reference Screen and Figure 8-21 Beta Test
Noise Ratio Screen.

8 - 10 BETA DETECTOR TESTS April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Cs137: 25.0µCi
Measd: 25.5µCi
Deviation: 1.96%

Any Key to Continue

Figure 8-19 Beta Test Activity Deviation Screen
Press any key (except HOME) to continue to the next result screen. Figure 8-20 Beta Test
Energy Deviation and Gain Reference Screen will appear.

Energy
Deviation:-0.5%
Gain Ref: 4048

Any Key to Continue

Figure 8-20 Beta Test Energy Deviation and Gain Reference Screen
Press any key (except HOME) to continue to the next result screen. Figure 8-21 Beta Test
Noise Ratio Screen will appear.

Ch1/(Ch3+Ch4): 1.19
Measured as: 1.22
Deviation: 1.9 %

Any Key to Continue

Figure 8-21 Beta Test Noise Ratio Screen
Press any key (except HOME) to continue. Figure 8-7 Beta Main Menu will appear.

April 12 BETA DETECTOR TESTS 8 - 11

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

The printed report consists of:

 Cs137 Standard: current activity of the Cs137 Test source

 Measured as: measured activity of the source

 Deviation: deviation of the measured value from the standard value. If the
deviation is more than ±10%, the value is printed in red. If the
deviation is 100% or more, **ERROR** is printed in red
(probably used wrong source)

 Energy deviation: deviation from the ideal value. If the deviation is more than
3.0%, performing of Auto Cal is recommended. If it is more
than 5%, **ERROR** will be printed in red. Confirm the source
and perform Auto Cal.

 Ch1/(Ch4+Ch5): the ratio measured during AUTO CAL for Cs137

 Measured as: the currently measured ratio

 Deviation: the deviation of the measured ratio from the AUTO CAL ratio.

 A graphic representation of the net counts in each channel is printed.

 A list of the background counts in each channel is printed.

 Gain Reference: this is related to the High Voltage and has a range of 0 to 8191.

8 - 12 BETA DETECTOR TESTS April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

CHAPTER 9

BETA DETECTOR MEASUREMENT
PROCEDURES

GENERAL

The Beta Detector has two sample chambers denoted as 10cm and 20cm. Most
measurements are performed using the 10cm position. If the error message “COUNT RATE
TOO HIGH” is displayed during a count, move the sample to the 20cm position and repeat
the measurement.

The sample must be properly placed in the sample chamber of the Beta Detector prior to
making the measurement. The sample holders are constructed of machined Teflon inserts to
provide precise positioning and maintain reproducible geometry from sample to sample.

VIAL/SYRINGE HOLDERS FOR BETA DETECTOR

Components: 30ml Vial Holder (Figure 9-1)
10ml Vial Holder (Figure 9-2)
BD 3ml, 5ml, & 10ml Syringe Holder Inserts (Figure 9-3)
Optional Monoject 10ml Syringe Holder Insert (Figure 9-4)

The Capintec Vial & Syringe Holders are manufactured from machined Teflon and are
designed to provide maximum radiolucency during measurements.

The Capintec Vial & Syringe Holders are designed to insure proper placement of vials and
syringes in the detector chamber. The Vial and Syringe holders also insure consistent
geometric alignment when performing isotope measurements.

Vial Holders
The 30ml Vial Holder (Figure 9-1) should be placed in the detector first (Refer to Figure 9-5
Detector Assembly Cut-Away View for placement of Vial and Syringe Holders). Once
inserted in the detector, the 30ml Vial Holder need not be removed, i.e., it should remain in
place for all measurements.

To perform measurements with the 30ml Vial Holder, simply place the vial to be measured
into the detector compartment.

January 07 BETA DETECTOR MEASUREMENT PROCEDURES 9-1

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

The 10ml Vial Holder (Figure 9-2) is designed to be placed on top of the 30ml Vial Holder.
When measuring 10ml vials, simply place the 10ml Vial Holder into the detector
measurement compartment and place the 10ml vials to be measured into the Vial Holder.

30ml 10ml
Vial Holder Vial Holder
Figure 9-1 Figure 9-2

Syringe Holders

Note: If the Syringe Holder Inserts are to be used, the 10ml and 30ml Vial Holders must be
placed in the Beta Detector measurement compartments prior to syringe
measurements.

Three (3) BD Syringe Holder Inserts (Figure 9-3 BD Syringe Holder Inserts) are provided
with the system. The sizes are as follows: 3ml, 5ml, and 10ml. Each Syringe Holder Insert is
clearly marked to indicate size. An optional Monoject 10ml Syringe Holder Insert (Figure 9-4
Monoject Syringe Holder Insert) is also available.

Figure 9-3 BD Syringe Holder Inserts

9-2 BETA DETECTOR MEASUREMENT PROCEDURES January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Figure 9-4 Monoject Syringe Holder Insert

To perform syringe measurements employing the Syringe Holder Inserts, verify that the 30ml
Vial Holder is in place in the detector compartment, then insert the 10ml Vial Holder. Select
the appropriate Syringe Holder Insert and place the insert on top of the 10ml Vial Holder.
Refer to Figure 9-5 Detector Assembly Cut-Away View for placement of Vial and Syringe
Holders.

Figure 9-5 Detector Assembly Cut-Away View

January 07 BETA DETECTOR MEASUREMENT PROCEDURES 9-3

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

MEASUREMENT PROCEDURES

Basic Activity Measurement Procedure
To measure a sample, follow the procedure outlined below:

1. Press the BETA key to go to the Beta Measurement Screen from the Chamber or
Well Measurement Screen.

2. If the background has not been measured earlier in the day, the Background Today
Question Screen will appear. Measure background whenever appropriate.

Nominal background level in a clean room is approximately 180 cpm (3 cps) or lower.
Normal level of background will be insignificant for measurement of a typical sample.
However, if the background counting rate exceeds 1000 cpm (15 cps) or so at your
laboratory, it is strongly recommended that the users should evaluate ways to reduce
the room background for reasons of safety.

Any presence of contamination may be confirmed by counting without a sample in the
sample chamber.

3. Specify the nuclide via Pre-Set Nuclide keys, USER keys or NUCL key.

4. Specify the sample container type via the FORM key.

5. Input the counting period via the numeric keypad. Press ENTER to accept the count
time.

6. Select appropriate sample holder and place the sample in the sample chamber

7. Start counting by pressing BETA.

8. The measurement may be terminated by pressing BETA (START/STOP), if so
desired.

9. When the measurement has been completed, press the ENTER key to print the
result.

10. Change the sample and press BETA (START/STOP).

CAUTION

Whenever the instantaneous counting rate exceeds 60kcps in any 40msec period,
“COUNTING RATE TOO HIGH” will be displayed. When the source is removed you will be

returned to the Beta Measurement Screen.

The Beta Measurement Screen is the HOME position for Beta procedures. Whenever HOME
is pressed from a Beta procedure, the system returns to the beginning of Beta measurement.

9-4 BETA DETECTOR MEASUREMENT PROCEDURES January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

If the background has been measured earlier in the day or if the last measured background
has been accepted, the Beta Measurement Screen appears:

Sr89 2s β
VIAL

Press BETA to START

Figure 9-6 Beta Measurement Screen

The β appears in the upper right hand corner as a reminder that the measurement is to be
made in the Beta Detector. The container type (if chosen) appears under the nuclide name.
The counting period (2 seconds in the example) appears in the middle of the top line.

Counting Rate Mode
Counting Rate Mode is selected by pressing the CAL# (COUNTING RATE)key. When this
mode is selected, activity in all the channels will be counted and the result will be displayed
in cpm in Curie mode (or cps in Becquerel mode).

Counting Rate Mode is only available for the 10cm position. In Counting Rate mode, no
nuclide name is displayed in the upper left of the screen. (If a nuclide name is displayed on
the upper left of the screen, the unit is in Activity Mode) Also, no Sample Container Type or
distance will be displayed.

Activity Mode
In Activity Mode, the selected nuclide is displayed in the upper left hand corner of the screen.
The container type (if chosen) appears under the nuclide name. The counting period appears
in the middle of the top line. Activity in the nuclide’s selected channels will be counted and
the result will be displayed in Curies or Becquerels.

To enter Activity Mode, select a nuclide by pressing NUCL, a Pre-Set Nuclide key or a USER
key. The chosen source must have an efficiency previously input or measured in order to use
it. (Reference CHAPTER 5:BETA DETECTOR INITIALIZATION; SECTION:EFFICIENCY
DATA)

To return to Counting Rate Mode, press the CAL# (COUNTING RATE) key. The nuclide and
container type will not be displayed.

January 07 BETA DETECTOR MEASUREMENT PROCEDURES 9-5

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Selecting Sample Container Type
The possible sample container types are:
• REFERENCE (e.g. ampoule)
• SYR (syringe)
• VIAL

Use the FORM key to cycle through the container types available for each isotope.

The sample container type is displayed under the nuclide name. If only 1 sample
container type has been chosen in setup, the FORM key is inactive and will beep
when pressed.

Selecting Distance

A nuclide can be measured at 10cm or 20cm. A source can only be measured at a
distance for which Efficiency Data has been entered or measured.

Press the DISPLAY key to change the distance. If the nuclide selected does not have
Efficiency Data for the other distance, the distance cannot be changed and the unit
will beep when the key is pressed. Figure 9-7 No Data Exists for Other Distance
Screen will appear.

Tc99m 2s β

10cm

NO DATA EXISTS
For 20 cm
Any Key to Continue

Figure 9-7 No Data Exists for Other Distance Screen
Press any key (except HOME) to continue.

Inputting Counting Period
The last counting period selected is displayed.
Input the counting period via the numeric keypad and press ENTER.
The minimum counting period is 2 seconds and the maximum is 9999 seconds.
The counting may be terminated at any time by pressing the BETA (START/STOP) key.

9-6 BETA DETECTOR MEASUREMENT PROCEDURES January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Performing the Measurement

Press BETA (START/STOP) to begin the measurement. Figure 9-8 Bar Graph Counting
Screen will appear showing the net counting rate per channel and remaining counting period.
The screen is updated every second.

k 660 kcpm,n
e 400
V 200 0.44
40.92
100 47.34
60.15
39.08
80.64

Figure 9-8 Bar Graph Counting Screen

To end the measurement before the requested counting period has expired, press BETA.

When the measurement is finished (time is up or the BETA key has been pressed to stop the
counting during the measurement):

• For Counting Rate Mode, the counting rate for all channels is displayed and will be in
cpm (or cps). (Reference Figure 9-9 Beta Measurement Results – Counting Rate
Mode).

• For Activity Mode, the activity will be calculated and displayed and will be in Curies or
Becquerels. (refer to Figure 9-10 Beta Measurement Results – Activity Mode)

12:34
net

65.88kcpm
± 0.26kcpm

Figure 9-9 Beta Measurement Results – Counting Rate Mode

January 07 BETA DETECTOR MEASUREMENT PROCEDURES 9-7

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Sr89 12:34

VIAL 10cm

6.27mCi

Figure 9-10 Beta Measurement Results – Activity Mode

The time appearing in the upper right hand corner is the time of the measurement and is not
updated.

If the sample activity is low and preset counting precision is not attained within the input
counting period, Figure 9-11 Beta Measurement Low Activity will appear showing the
estimated counting period necessary to achieve the desired precision.

Count for
xxx sec
or more

Press BETA

Figure 9-11 Beta Measurement Low Activity

If the counting rate is so low that the desired precision for activity measurement cannot be
achieved within 9999 seconds, the message "SOURCE IS TOO WEAK" will be displayed. To
measure the sample, select Counting Rate Mode via the CAL# (COUNTING RATE) key. In
that mode, the counting precision is displayed along with the counting rate observed.

To skip the precision check, set the Precision to NOT TESTED. (Refer to CHAPTER 5:BETA
DETECTOR INITIALIZATION; SECTION:LIMITS)

If impurity data has been entered for the nuclide, the effect of the impurity on the measured
activity will be nullified.

If level of the impurity is greater than the preset limit for display, the level of the impurity is
estimated and displayed as a percentage of the principal nuclide's activity, (Refer to
CHAPTER 5:BETA DETECTOR INITIALIZATION; SECTION:EFFICIENCY DATA)

9-8 BETA DETECTOR MEASUREMENT PROCEDURES January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Sr89 12:34

VIAL 10cm

6.27mCi

IMPURITY: 0.3%

Figure 9-12 Counter Measurement Results with Impurity Display
To view the bar graph, press DISPLAY:

k 660 kcpm,n
e 400
V 200 .03
.06
100 2.61
3.89
9.27
21.99

Figure 9-13 Beta Measurement Results Bar Graph

The net counts are filled in. The channels which are used to calculate the activity of the
current nuclide are solid; the other channels are hatched.

Press DISPLAY again to return to Figure 9-12 Counter Measurement Results with Impurity
Display screen.

If the container type is incorrect, use the FORM key to select the correct container type. The
activity for the new container type will be displayed.

To make another measurement without changing any parameters, press BETA and the
measurement will begin.

To measure another nuclide, specify the nuclide via Pre-Set Nuclide keys, USER keys or the
NUCL key. The Beta Measurement Screen will reappear with the new nuclide displayed.

January 07 BETA DETECTOR MEASUREMENT PROCEDURES 9-9

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Shading of Bar Graphs

The overall length of each bar in the bar graph always indicates total counts (wipe sample
plus background) for each channel.

The solid shaded length of each bar in the bar graph always indicates net counts (sample
minus background) for each channel.

The numbers in the column at the right side of the screen always indicate net counts (sample
minus background) for each channel. This number corresponds to the solid section of each
bar. Consequently, the overall length of a bar for a certain channel may appear larger than
the other bars when the corresponding number of net counts is smaller than the others.

When net counts are a smaller percentage of total counts, the bars will be partially shaded.

Because the CRC®-Ultra indicates net counts on the bar graph by shading portions of the
bars that represent net counts, bar graphs of background measurements are always un-
shaded.

If the net counts are high compared to the background levels, the background activity is too
small to see with the resolution of the display. As a result, the entire bar for each channel is
shaded.

Negative Numbers

For some samples, you may find negative numbers listed in the net count column (at the
right side of Figure 9-13 Beta Measurement Results Bar Graph). This does not indicate
device malfunction.

Negative numbers occur when total counts minus background counts for a particular channel
is less than zero. This can happen when the background activity has changed or when count
rates are very low.

Negative counts should be small numbers. Large negative numbers indicate a significant
change in background activity, and the background count should be repeated.

Printing

Note: A printer must be attached to the system in order to print the results.

To print a record of the measurement, press ENTER (PRINT) when the Results Screen or
Bar Graph Screen is displayed. The nuclide name, container type, distance, count time,
activity, the time and date that the measurement began, and if displayed, the % impurity will
be printed. If the Bar Graph Screen is displayed, it will also be printed.

9 - 10 BETA DETECTOR MEASUREMENT PROCEDURES January 07

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

ACTIVITY AT A DIFFERENT TIME

It is often desirable to know the activity of the sample at another time (usually in the future).
When another date/time is chosen, the activity at that date and time will be displayed (and
can be printed if a printer is attached to the system) along with the measured activity.

This feature is only available when a nuclide is specified because the half-life of the nuclide
must be known.

From Figure 9-10 Beta Measurement Results – Activity Mode, press TIME. Figure 9-14
Beta Time / Date Input Screen will appear.

Tc99m 12:00

10cm

6.89mCi

hhmmPDDPMMPYY

Figure 9-14 Beta Time / Date Input Screen

The time/date entry format is hhmm/DD/MM/YY where:
• hh= hours (24 hour format) (1 or 2 digit)
• mm = minutes (2 digit)
• DD = day (2 digit)
• MM = month (2 digit)
• YY = year (2 digit)

The minimum input required is the time (hhmm). That is, if the future time is sometime later in
the same day, then all that needs to be input is the time. For example:

If the current time is 12:00 and the desired future time is 16:00 today;
• input 1600 and
• press ENTER. Figure 9-15 Future Activity – Same Day will appear

If the future time is sometime the next day, then all that needs to be input is the time (hhmm)
and day (DD). For example:

If today is July 30 and the desired future time is 9:00 tomorrow;
• input 900 (for the time),
• press the DOWN ARROW (Ô),
• input 31 (for the day) and
• press ENTER. Figure 9-16 Future Activity – Different Day will appear.

January 07 BETA DETECTOR MEASUREMENT PROCEDURES 9 - 11

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

If the future time is sometime the day after tomorrow, then the time (hhmm), day (DD) and
month (MM) will need to be input. For example:

If today is July 30 and the desired future time is 9:00 the day after tomorrow;
• input 900 (for the time),
• press the DOWN ARROW (Ô),
• input 01 (for the day),
• press the DOWN ARROW (Ô),
• input 08 (for the month) and
• press ENTER.

If only the time was changed, the new time will be shown as in Figure 9-15 Future Activity –
Same Day.

Tc99m 12:00

10cm

25.72mCi

16.22mCi 16:00

Figure 9-15 Future Activity – Same Day

If the day was changed, the new time and date will be shown as in Figure 9-16 Future
Activity – Different Day.

Tc99m 12:00

10cm

25.72mCi

2.28mCi 09:00

Jul 31 2006

Figure 9-16 Future Activity – Different Day

Press the HOME key to exit Future Time and return to Figure 9-6 Beta Measurement
Screen.

9 - 12 BETA DETECTOR MEASUREMENT PROCEDURES January 07

CAPINTEC, INC. CRC®-ULTRA BETA DETECTOR

CHAPTER 10

CLEANING AND MAINTENANCE

GENERAL
This chapter provides the information necessary for the user to perform the basic
maintenance of instrument cleaning and general preventative maintenance. There are no
internal adjustments or calibration settings that may be done by the user within the conditions
of the warranty.

CAUTION: REFER ALL SERVICING TO A QUALIFIED SERVICE
REPRESENTATIVE!

It is recommended that periodic (every three to five years) re-calibration of the CRC®-Ultra
Beta Detector be performed only by Capintec’s Authorized Service Center to guarantee the
instrument’s high reliability is maintained. Contact Capintec’s only Authorized Service Center
in Pittsburgh for servicing or re-calibration at 1-800-227-6832.

CLEANING and DISINFECTING
CAUTION:
• DISCONNECT THE POWER BEFORE CLEANING.
• TO AVOID ELECTRICAL SHOCK OR DAMAGING OF THE CRC® -ULTRA
BETA DETECTOR, NEVER ALLOW WATER OR LIQUIDS TO PENETRATE
THE DETECTOR HOUSING.
• DO NOT USE AEROSOL DISPENSERS TO SPRAY THE EQUIPMENT WITH
CLEANING SOLUTIONS OR LIQUIDS.
• TO AVOID DAMAGING, DO NOT USE AROMATIC HYDROCARBONS,
CHLORINATED SOLVENTS OR METHANOL-BASED CLEANING
SOLUTIONS.

Cleaning Instructions

Wipe the surfaces clean using a damp, non-abrasive cloth or sponge and a mild detergent
and water; do not use solvents or aerosol cleaners. After cleaning, wipe all surfaces dry with
a soft, non-abrasive cloth. To avoid scratches, do not use abrasive pads.

April 15 CLEANING AND MAINTENANCE 10 - 1

CAPINTEC, INC. CRC®-ULTRA BETA DETECTOR

Disinfecting Instructions

All surfaces can be disinfected with bleach using a mixture of 1 cup of bleach per gallon of
water. Wipe all surfaces using a non-abrasive cloth lightly dampened with the bleach mixture.
After disinfecting, wipe dry with a soft, non-abrasive cloth.

All surfaces can also be wiped with soft cloth lightly dampened with alcohol, such as an
alcohol prep pad. After wiping, the surface can be left to air dry.

PREVENTATIVE MAINTENANCE
The following preventative maintenance should be performed at the specified intervals.
General cleaning is at the discretion of the user (see Cleaning Instructions above). It is
recommended to periodically perform the Quality Assurance Tests as described in
CHAPTER 7:ACCEPTANCE & QUALITY ASSURANCE TESTS.

Tests must be performed in an environment where the temperature is stable within a range
of +50°F to +85°F (+10°C to +30°C) and the maximum relative humidity is 90% non-
condensing. The unit should be powered-up for at least one-half hour prior to performing any
measurements. No other precautions need to be observed.

CAUTION: If these environmental requirements are not followed, the instrument may
display erroneous readings.

The Quality Assurance Tests should be immediately performed if:
• The equipment has been subjected to extreme physical stress,
• Liquids enter the Beta Detector, or
• The Beta Detector cable shows signs of damage

10 - 2 CLEANING AND MAINTENANCE April 15

CAPINTEC, INC. CRC®-ULTRA BETA DETECTOR

DISPOSAL

The following items should be taken into consideration before disposing. These items should
be disposed of in accordance with local and national regulations. Please contact Capintec,
Inc. or an authorized disposal company to decommission your equipment.

1

3
2

No. Recycling/Material Code Important Information
1 External Electrical Cable
2 Printed Circuit Board High Voltage Power Supply
3 Lead Lead Shielding internal to Detector unit

April 15 CLEANING AND MAINTENANCE 10 - 3

CAPINTEC, INC. CRC®-ULTRA BETA DETECTOR

SERVICING
The system is covered by a two year limited warranty, under normal conditions of use.

There are no user serviceable parts contained in the Beta Detector.

Every five years, the system should be returned to Capintec’s only Authorized Service
Center for a complete verification.

CAPINTEC, Inc.
620 Alpha Drive
Pittsburgh, PA 15238
Phone (412) 963-1988, 1-800-227-6832
Fax (412) 963-0610

TROUBLESHOOTING
Some problems may be very easy to diagnose and correct in the field with little or no
equipment. If a problem should occur, check here before you call for service. You may be
able to save a considerable amount of time and money.

Wrong Detector Connection.

• Make sure the Beta Detector Cable is plugged into the connector labeled “BETA”
on the rear of the Readout unit. Reference CHAPTER 4:SYSTEM SETUP;
SECTION:UNPACKING AND INSTALLATION.

BETA key beeps when switching to Beta Mode.

• Make sure the Beta Detector Cable is plugged into the connector labeled “BETA”
on the rear of the Readout unit. Reference CHAPTER 4:SYSTEM SETUP;
SECTION:UNPACKING AND INSTALLATION.

High background indication.

• The well liners/inserts may have become contaminated. Reference CHAPTER 7:
ACCEPTANCE & QUALITY ASSURANCE TESTS; SECTION:CONTAMINATION
TEST.

• Background may actually be high. Check by placing a lead sheet over the top of
the Well Counter.

Indication of significant negative activity.

• Background level may have changed. Re-measure the Background. Reference
CHAPTER 8:BETA DETECTOR TESTS; SECTION:BACKGROUND.

10 - 4 CLEANING AND MAINTENANCE April 15

CAPINTEC, INC. CRC®-ULTRA BETA DETECTOR

ACCESSORIES AND REPLACEMENT PARTS

The following accessories and replacement parts are available from Capintec. Call
Capintec’s only Authorized Service Center at 1-800-227-6832 for answers to your questions
or to place an order.

• Test Sources....................................................................................CALL
• ¼” Auxiliary Shield .......................................................................5530-2098
• Well Counter ................................................................................5130-2214
• Okidata 320 Ticket and Report Printer .........................................5110-1150
• Epson Roll Printer ........................................................................5430-0058
• Epson Ticket Printer.....................................................................5430-0100
• HP Inkjet Printer...........................................................................5430-0146
• Printer Ribbons ................................................................................CALL
• Inkjet Cartridges...............................................................................CALL
• Multi-part Tickets, Paper, etc............................................................CALL
• Additional copies of Owner’s Manual ...........................................9250-0121

Note: Circuit diagrams, component parts lists, descriptions and calibration instructions are
available to appropriately qualified personnel.

SHIPPING

If for any reason the CRC®-Ultra must be returned to Capintec, the shipping carton must
contain the following or equivalent labeling as shown in Figure 10-1. Label stipulating the
maximum environmental conditions for safe storage and shipment.

April 15 CLEANING AND MAINTENANCE 10 - 5

CAPINTEC, INC. CRC®-ULTRA BETA DETECTOR

RANGEZ L'APPAREIL DANS UN ENDROIT DONT LA TEMPÉRATURE
VARIE ENTRE +4 °C (+39 °F) ET +43 °C (+110 °F)

RANGEZ L'APPAREIL DANS UN ENDROIT DONT L'HUMIDITÉ EST
INFÉRIEURE À 90 % SANS CONDENSATION ET DONT
LA PRESSION BAROMÉTRIQUE SE SITUE ENTRE
15 ET 33 PO DE MERCURE (ENTRE 51 ET 112 kPa)
ÉVITEZ TOUT CHOC THERMIQUE ET MÉCANIQUE

LAISSEZ RÉCHAUFFER À TEMPÉRATURE AMBIANTE PENDANT UNE PÉRIODE DE
24 HEURES AVANT DE DÉSEMBALLER ET DE METTRE L'APPAREIL EN MARCHE

Figure 10-1

10 - 6 CLEANING AND MAINTENANCE April 15

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

APPENDIX I

OPERATIONAL SUMMARY

Thank you for choosing CAPINTEC. This “Start-Up” aid is designed to allow you to use the
CRC®-Ultra Beta Detector to perform immediate nuclide measurements.

GETTING STARTED with Beta DETECTOR MEASUREMENTS

From the Chamber Measurement screen, press BETA to access the Beta Detector.

A “” appears in the upper right hand corner of the display to indicate that the measurements
are being made in the Beta Detector.

Background Measurement

When you access the Beta Detector for the first time each day, the following screen will
appear:


BACKGROUND NOT
MEASURED TODAY

USE LAST BKG?

MNO

Press 6 for NO. The following screen will appear:

MEASURE BETA
BACKGROUND
NO SOURCES

MENU key for Setup
or Another key
to Continue

Make sure that no sources are in the vicinity of the Beta Detector. Press any key except
MENU or HOME to continue with the Background measurement.

The system will prompt you through a Background measurement. When the Background
measurement is complete, you will see the message “ENTER or BETA to SAVE”. Pressing
ENTER will print (if a printer is attached to the system) and store the Background value.
Pressing BETA only stores the Background value. The Background will be subtracted
automatically from all measurements.

April 12 APPENDIX I A1 - 1

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Background adjustment can be also performed at any time by pressing the Background

BKG

key from the Beta Measurement screen.

Daily Test

Prior to performing any activity measurements, the Daily Test must be performed on the Beta
Detector. The test requires a Cs137 Standard Source. The source data must be entered into
the system. To input Test Source data, reference the ENTER TEST SOURCE section below.

From Beta Measurement screen, press MENU . The Beta Main Menu will appear.



1. Auto Cal
2. Setup
3. Test

DEF

Select TEST by pressing 3 . The Select Distance Menu will appear.



1. 10 cm
2. 20 cm

- . The Test screen will appear.

Select 10 cm by pressing 1 TEST
Measure Cs137
Any Key to Continue

Place the Cs137 Test Source in the sample holder and press any key (except HOME) to

continue. Press BETA to start the test. The test procedure checks the calibration of the

counter. If the Activity Deviation is greater than ±5%, check your Test Source dates and re-

measure the Efficiency for the Cs137 Standard Source (reference the EFFICIENCIES

section below). If the test fails, it will be necessary to perform an Auto Calibration (reference

CHAPTER 8:BETA DETECTOR TESTS; SECTION:AUTO CALIBRATION).

A1 - 2 APPENDIX I April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Enter Test Source
(Reference CHAPTER 5:BETA DETECTOR INITIALIZATION; SECTION:TEST SOURCE
DATA)

The Test Source must be entered from the Beta Setup Menu. To access this menu, press

HOME

to get to the Beta Measurement screen.

Press MENU . The Beta Main Menu will appear.



1. Auto Cal
2. Setup
3. Test

ABC

Select SETUP by pressing 2 . Input the password (last 3-digits of the readout serial

number) and press ENTER . The Setup Menu will appear.

SETUP 
1. Test Source
2. Limits
3. Efficiency
4. User Keys
5. Detector

-

Select TEST SOURCE by pressing 1 . If a Test Source has been previously input, the
data for the source will be displayed for verification.

WXY

If the displayed data is correct, press 9 for YES. The Setup Menu will re-appear.

MNO

If the displayed data is not correct, press 6 for NO.

Input the serial number of the Test Source and press ENTER. Input the Calibration Day and
press ENTER. Input the Calibration Activity and press ENTER.

The system will display the entered data. Verify the data and confirm with YES. To correct
any errors, press NO.

Press HOME to return to the Beta Measurement screen.

April 12 APPENDIX I A1 - 3

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Efficiency

(Reference CHAPTER 5:BETA DETECTOR INITIALIZATION; SECTION:EFFICIENCY
DATA)

In order to get an activity reading, it is necessary to measure Efficiency for the nuclides that
will be used. Obtain a Standard Source for each nuclide and measure the Efficiency in the
container (syringe or vial) you normally measure the isotope in. If the isotope is measured in
another container, a Correction Factor will have to be inserted. (Reference CHAPTER
5:BETA DETECTOR INITIALIZATION; SECTION:EFFICIENCY DATA)

Measure Efficiencies
Note: Before measuring efficiencies, the unit must be in Beta Detector mode.

From the Beta Measurement screen, press MENU . The Beta Main Menu will appear.



1. Auto Cal
2. Setup
3. Test

ABC

Select SETUP by pressing 2 . Input the password (last 3-digits of the readout

serial number) and press ENTER . The Setup Menu will appear.

SETUP 
1. Test Source
2. Limits
3. Efficiency
4. User Keys
5. Detector

DEF

Press 3 to select EFFICIENCY. The Beta Efficiency Menu will appear.


1. Activity Data
2. Impurity Data

- to select ACTIVITY DATA. The Choose Nuclide screen will appear.

Press 1 CHOOSE NUCLIDE

Press NUCL or
Pre-set nuclide key
or User key

A1 - 4 APPENDIX I April 12

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Select the Isotope to measure via the keypad and press ENTER.

NUCL PRS PRS TUV WXY

Example: Sr89 Press . Press 7 7 8 9

Press ENTER .

The Select Distance Menu will appear.



1. 10 cm
2. 20 cm

Select the appropriate distance. The entered nuclide will be displayed. Confirm the
entry with YES. If there is already Efficiency data for the selected isotope in the
system, the values will be displayed.

Press NO to re-measure the Efficiency. The Efficiency Entry Method Menu will
appear.


1. Input Eff
2. Measure Eff

ABC

Press 2 to select MEASURE EFF.

Input the Calibration Date and press ENTER. Input the Calibration Time and press
ENTER. Input the Calibration Activity and press ENTER.

The system will display the entered data. Verify the data and confirm with YES. To
correct any errors, press NO.

Place the source in the appropriate holder and press any key (except HOME) to
continue.

Press BETA to start the measurement.

After the measurement, the Channel selection screen will appear.

Y selects channels
 CH1 CH4

CH2 CH5

CH3 CH6
ENTER when finished

April 12 APPENDIX I A1 - 5

CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

The channels that will be used to calculate activity must be selected. Select the
Channels that correspond with the main energy peak(s) of the isotope.

Channel Energy Range in keV

1 15 to 100
2 100 to 200
3 200 to 400
4 400 to 660
5 660 to 800
6 > 800

Use the UP () and DOWN () arrows to move the pointer (right arrow ) so that it
points to the channel to be selected (or de-selected) and then press the Y key.

Press ENTER after all the desired channels are selected. The Container Selection
Menu will appear.

CONTAINER 

1. Reference
2. Syringe
3. Vial

Select the container that the efficiency is being input for. The system will ask if you
use a different container other than the one entered. Press NO. If you use a different
container, reference CHAPTER 5:BETA DETECTOR INITIALIZATION;
SECTION:EFFICIENCY DATA.

The new Efficiency and Channels will be displayed. Press YES to confirm.

The system will display the Container Type Correction Factors. Press YES to confirm.

Press HOME to return to the Beta Measurement screen.

Selecting a Nuclide for Measurement
You can select a nuclide in three different ways:

1. PRE-SET NUCLIDE KEYS: The Beta Detector has 8 pre-defined nuclide keys.
Each key is labeled to indicate the corresponding nuclide as shown below.

Note: These keys are only valid for Beta Measurements when Efficiency Data
have been measured or input.

F Ga76 In111 Tc99m I123 I131 Xe133 Tl201

18 C11 N13 O15 U6 U7 U8 U9

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CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Example: To measure Tc99m, place the sample in the well and press

Tc99m

O15 . The activity for Tc99m is automatically displayed.

2. USER DEFINED KEYS: The Beta Detector has 5 user defined keys. Nuclides
can be assigned to these keys.

Note: Before using one of these keys, a nuclide must be assigned to the key.
(Reference CHAPTER 5:BETA DETECTOR INITIALIZATION;
SECTION:USER KEY ASSIGNMENT)

U1 U2 U3 U4 U5

Example: If the assignment for U1 is Co57, place the sample in the well and

press U1 . The activity for Co57 is automatically displayed.

3. NUCLIDE KEY: The Nuclide Key allows a nuclide to be selected from the list of
nuclides that have been stored in the memory. Simply press the NUCL key and
use the alphanumeric (number/letter) keys to specify the nuclide. After inputting
the values, press the ENTER key.

Example: NUCL .

To measure Sr89, place the sample in the well and press

PRS PRS TUV WXY

Press 7 7 8 9 . Press ENTER .

Measuring Nuclide Activity

To perform an activity measurement, place the sample with the appropriate holder in the
counter after specifying the nuclide.

Input the counting period via the numeric keypad and press ENTER. Press BETA to start
counting. Pressing BETA again will terminate the measurement, if so desired.

When the measurement has been completed, a record of the measurement can be printed
by pressing ENTER (PRINT) when the Counting Results Screen or Bar Graph Results
Screen is displayed. If the Bar Graph Results Screen is displayed, the Bar Graph will also be
printed.

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CAPINTEC, INC CRC®-ULTRA BETA DETECTOR

Measurement without Nuclide Selection

The CRC®-Ultra allows measurement without a nuclide selected. The system then calculates
and displays the results in cpm (or cps) for all the channels.

Press CAL# (COUNTING RATE). No nuclide name is displayed.

Place the sample in the counter and input the counting time via the numeric keypad and
press ENTER. Press BETA to start counting. Pressing BETA again will stop the
measurement, if so desired.

Future Activity
The CRC®-Ultra has a special feature that allows you to automatically determine the activity
of a sample at some point in the future.

Note: This feature is only available when a nuclide is specified because the half-life of the
nuclide must be known.

From the measurement results screen, press TIME .

The time/date entry format is hhmm/DD/MM/YY where:
 hh= hours (24 hour format) (1 or 2 digit)
 mm = minutes (2 digit)
 DD = day (2 digit)
 MM = month (2 digit)
 YY = year (2 digit)

Input the new time and date and press ENTER . The “FUTURE” activity is displayed.

Press HOME to exit Future Time and return to the Beta Measurement screen.

For Technical Assistance, contact
Capintec’s only Authorized Service Center at 1-800-227-6832.

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