Capintec CRC-25R - Page 201

CAPINTEC, INC CRC
®
-25R
Uncertainty Due to
Radioisotopes
Calibration
Setting
Number
Syringe
Corr. %
Published
Data %
Half-Life
(NCRP-58)
Ref. Comments
64
Cu Copper 015 or
115 × 2
12.701 H 2 ORNL76
65
Zn Zinc 172 243.9 D 1 ORNL76
66
Ga Gallium 903 2 9.40 H 7 ORNL76
67
Cu Copper 052 4 2.575 D 3 ORNL76
67
Ga Gallium 100 1.4 3.261 D 1 NBS78
68
Ga Gallium 416 68.0 M 2 ORNL76
69m
Zn Zinc 143 13.76 H 3 ORNL76
72
As Arsenic 795 26.0 H 1 ORNL76
72
Ga Gallium
470 ÷ 2
2 14.10 H 1 ORNL76
73
As Arsenic
324 × 10
4 3 80.30 D 6 ORNL76
73
Se Selenium 748 7.15 H 8 ORNL76 Decays to
73
As.
74
As Arsenic 304 5 17.78 D 3 ORNL76
75
Se Selenium 258 2.5 119.8 D 1 NBS75
76
As Arsenic 110 6 26.32 H 7 ORNL76
77
As Arsenic
481 × 100
26 38.8 H 3 ORNL76 Estimation use only.
77
Br Bromine 091 3 56 H 2 ORNL76
79
Kr Krypton 050 3 35.04 H 10 ORNL76
81
Rb Rubidium 174 4.58 H NM75 Pure
81m
Kr Krypton
915 × 10
13 S 1 NM75 Pure
81
Rb
81m
Kr
Rubidium
Eqb.
Krypton
270 NM75
Reading gives act. of
81
Rb or
81m
Kr in
equilibrium sample.
Eqb. after 2 minutes.
82
Br Bromine
536 ÷ 2
2 35.34 H 2 ORNL76
82
Rb Rubidium 504 1.273 M 2 NM75
84
Rb Rubidium 347 32.77 D 4 NM75
85m
Kr Krypton 065 1 4.480 H 8 ORNL76 Decays to
85
Kr
85
Kr Krypton
031 × 100
2 10.72 Y 1 ORNL76
85
Sr Strontium 193 1.0 64.854 D 3 NBS75
86
Rb Rubidium
411 × 10
18.64 D 2 ORNL76
86
Y Yttrium
711 ÷ 2
14.74 H 2 ORNL76
86
Zr Zirconium 167 18 3 16.5 H 1 ORNL76
87
Kr Krypton 250 6 76.3 M 5 ORNL76
87m
Sr Strontium 095 2.805 H 3 ORNL76 Pure
87
Y Yttrium 170 1 80.3 H 3 ORNL76 Pure
June 09 APPENDIX II A2 - 9