Capintec CRC-25R - MULTIPLICATION FACTORS FOR ZN62 ACTIVITY MEASUREMENTS; MULTIPLICATION FACTORS FOR Y87 ACTIVITY MEASUREMENTS

CAPINTEC, INC CRC
®
-25R
Multiplication factors for Zn62 Activity Measurements:
Use a Calibration Number of 217 and a multiplication factor as indicated in the following table
to obtain Zn62 activity at time “t” minutes after an initially pure source of Zn62 is obtained.
Zn62
t
[minutes]
Multiplication
Factor
t
[minutes]
Multiplication
Factor
0 1.000 45 0.368
10 0.526 60 0.361
20 0.425 75 0.359
30 0.389 90 0.358
Multiplication factors for Y87 Activity Measurements:
Use a Calibration Number of 170 and a multiplication factor as indicated in the following table
to obtain Y87 activity at time “t” hours after an initially pure source of Y87 is obtained.
Y87
t
[hours]
Multiplication
Factor
t
[hours]
Multiplication
Factor
0 1.000 5 0.664
0.25 0.960 6 0.644
0.50 0.926 8 0.618
0.75 0.893 10 0.602
1.00 0.866 12 0.593
1.5 0.820 18 0.582
2.0 0.784 24 0.580
3.0 0.729 48 0.579
4.0 0.691
∞
0.579
July 07 APPENDIX III A3 - 3