Capintec CRC-25R - MEASURING NUCLIDE ACTIVITY; SELECTING A NUCLIDE FOR MEASUREMENT

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®
-25R
Press . The background value will be stored and automatically subtracted from all
measurements.
ENTER
Measuring Nuclide Activity
To measure the activity of a sample, simply place the sample in the dipper, lower it into the
Chamber, a
nd select the nuclide from the keypad.
Selecting a Nuclide for Measurement
When measuring the acti
vity of a nuclide, you must indicate the nuclide being
measured. This can be accomplished in four (4) simple ways:
1. PRE-SET NUCLIDE KEYS: There are 8 pre-defined nuclide keys. Each key is
labeled to indicate the corresponding nuclide as shown below.
Example: To measure Tc99m, place the sample in the Chamber and press
. The activity for Tc99m is automatically displayed.
F18 Ga67 In111 Tc99m
I123 I131 Xe133 Tl201
Tc99m
2. USER DEFINED
KEYS: There are 5 User defined keys. You can assign nuclides
to these keys. (See CHAPTER 6: CHAMBER INITIALIZATION, SECTION: USER
KEY ASSIGNMENT)
Example: If the assignment for U1 is Co57, place the sample in the Chamber
and press . The activity for Co57 is automatically
displayed.
U2 U3 U4 U5
U1
U1
3. NUCLIDE K
EY: The Nuclide Key allows you to select a nuclide 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.
A4 - 2 APPENDIX IV April 12