Capintec CRC-25R - Page 204

CAPINTEC, INC CRC
®
-25R
Uncertainty Due to
Radioisotopes
Calibration
Setting
Number
Syringe
Corr. %
Published
Data %
Half-Life
(NCRP-58)
Ref. Comments
116m
In Indium 974 3 54.15 M 6 ORNL76
117m
Sn Tin 180 15 2 13.61 D 4 ORNL76
117
Sb Antimony 082 3 2 2.80 H 1 ORNL76
119m
Sn Tin
657 × 10
35 4 293.0 D 13 ORNL76
121m
Te Tellurium 187 12 9 154 D 7 ORNL76 Pure
121
Te Tellurium 373 10 3 17 D 1 ORNL76 Pure
121m
Te
121
Te
Tellurium
Eqb.
Tellurium
645
Reading gives act. of
121m
Te or
121
Te in eqb.
sample. Eqb. in 120
days. See App. IV for
non-eqb. samples.
121m
Te
121
Te
Tellurium
Eqb.
Tellurium
572
Reading gives sum of
121m
Te or
121
Te in eqb.
sample.
122
Sb Antimony 146 6 2.70 D 1 ORNL76
123
I Iodine 277 15 1.9 13.221 H 3 NBS77 Ref. for 28 keV x-ray.
123m
Te Tellurium 177 12 119.7 D 1 NDT70
124
Sb Antimony 720 60.20 D 3 ORNL76
124
I Iodine 570 5 4.18 D 2 ORNL76
125
I Iodine 319 25 1.45 59.6 D 2 NBS76
125
Sb Antimony 289 10 2.758 Y 1 NDT70 Pure
125
Sb Antimony
(Eqb.
125m
Te)
371 12 2.758 Y 1 NDT70 Reading gives
125
Sb
Act. in eqb. sample.
Eqb. after 1 year.
125
Sb
125m
Te
Antimony
Eqb.
Tellurium
364 12 NDT70
Reading gives sum of
125
Te and
125m
Te in
eqb. sample. See App.
IV for non-eqb. activity.
125m
Te Tellurium 259 25 57.40 D 5 NDT70
126
I Iodine 240 10 18 13.02 D 7 ORNL76
127
Xe Xenon 371 12 5 36.4 D 1 ORNL76
129m
Te Tellurium
817 × 10
20 5 33.6 D 1 ORNL76 Pure
129
Te Tellurium
679 × 10
15 13 69.6 M 2 ORNL76 Pure
129m
Te
129
Te
Tellurium
Eqb.
Tellurium
054
Reading gives act. of
129m
Te or total act. in
eqb. sample. Eqb. in
10 hours.
129
Cs Cesium 397 15 20 32.06 H 6 ORNL76 NM75 gives 488
129
I Iodine 166 20 1.57E7 Y 4 ORNL76
129m
Xe Xenon 362 20 3 8.0 D 2 ORNL76
A2 - 12 APPENDIX II June 09