Capintec CRC-25R - Page 200

CAPINTEC, INC CRC
®
-25R
Uncertainty Due to
Radioisotopes
Calibration
Setting
Number
Syringe
Corr. %
Published
Data %
Half-Life
(NCRP-58)
Ref. Comments
44
Ti Titanium 514 2 2 47.3 Y 12 ORNL76
46
Sc Scandium 822 83.79 D 2 ORNL76
47
Ca Calcium 373 4.536 D 2 ORNL76 Pure;
47
Ca decays to
47
Sc. Eqb. in 90 days.
47
Sc Scandium 026 or
618 × 2
3.351 D 2 ORNL76 Pure; see App. IV for
non-eqb.
48
V Vanadium
569 ÷ 2
15.974 D 3 ORNL76
49
Ca Calcium 956 2 8.72 M 2 NDT70 Pure; decays to
49
Sc
51
Cr Chromium
100 × 10
1.25 27.702 D 4 NBS76 Ref. for 320 keV
52
Mn Manganese
676 ÷ 2
5.591 D 3 ORNL76
52m
Mn Manganese
461 ÷ 2
21.1 M 2 ORNL76 Decays to
52
Mn
52
Fe Iron 374 8.275 H 8 ORNL76
52m
Mn will contribute to
dose.
54
Mn Manganese 309 312.14 D 5 ORNL76
55
Fe Iron 374 2.72 Y 2 ORNL76
55
Co Cobalt 481 7 17.54 H NDS76
56
Co Cobalt
648 ÷ 2
77.9 D 12 NDT70
56
Ni Nickel 844 4 6.1 D 3 NDT70 Decays to
56
Co;
See App. IV
56
Mn Manganese 627 2 2.577 H 1 ORNL76
57
Co Cobalt 112 1.9 271.7 D 2 NBS76 Ref. for 122 keV
Capintec Low Energy
Reference.
58
Co Cobalt 389 70.82 D 3 ORNL76
59
Fe Iron 430 44.51 D 2 ORNL76
60
Co Cobalt 990 1.0-NBS
1.5-LMR
5.2714 Y 5 NBS75 Ref. for 1.17, 1.33
MeV Capintec High
Energy Reference
62
Cu Copper 448 9.74 M 2 NM75 Pure
62
Zn Zinc 217 9.22 H NM75 Pure
62
Zn Zinc
(Eqb.
62
Cu)
760 Reading gives
62
Zn
Act. in eqb. sample.
Eqb. after 1.5 hours.
62
Cu Copper
(Eqb.
62
Zn)
745 Reading gives
62
Cu
Act. in eqb. sample.
Eqb. after 1.5 hours.
62
Zn
62
Cu
Zinc
Eqb.
Copper
333 NM75
Reading gives sum of
62
Zn &
62
Cu activity in
equilibrium sample.
A2 - 8 APPENDIX II June 09