Capintec CRC-25R - MULTIPLICATION FACTORS FOR TE132 ACTIVITY MEASUREMENTS; MULTIPLICATION FACTORS FOR XE133 M ACTIVITY MEASUREMENTS

CAPINTEC, INC CRC
®
-25R
Multiplication factors for Te132 Activity Measurements:
Use a Calibration Number of 315 and a multiplication factor as indicated in the following table
to obtain Te132 activity at time “t” hours after an initially pure source of Te132 is obtained.
Te132
t
[hours]
Multiplication
Factor
t
[hours]
Multiplication
Factor
0 1.000 4 0.342
0.25 0.836 5 0.318
0.50 0.725 10 0.275
1.00 0.586 15 0.266
2.00 0.447 20 0.265
3.00 0.380 24 0.264
Equilibrium
Multiplication factors for Xe133m Activity Measurements:
Use a Calibration Number of 100 and a multiplication factor as indicated in the following table
to obtain Xe133m activity at time “t” days after an initially pure source of Xe133m is obtained.
Xe133m
t
[days]
Multiplication
Factor
t
[days]
Multiplication
Factor
0 1.000 4 0.465
1 0.824 5 0.385
2 0.680 10 0.151
3 0.562 20 0.024
A3 - 6 APPENDIX III July 07