Scheme: EC = Electron Capture IT = Isomeric Transition
Notes:
1.
Isotope:
A/B implies that B is in equilibrium with A.
2.
Half life
: s = seconds, m = minutes, d = days, y = years.
3.
Scheme:
E = electron capture, B – beta decay, IT = isomeric transition, A = alpha decay.
4.
Cal Value:
Atomlab dose calibrator dial setting to calibrate for corresponding isotope
5.
Notes:
*H(r) = Half life ratio of daughter over parent, implies daughter is ignored.
** Bremsstrahlung includes low energy photons from electron interaction in saline.
Isotope should be measured in plastic syringe or vial or thin wall glass ampule unless otherwise
stated above.
Calculated or Measured:
C: Calculated with corrected Monte Carlo.
B: Beta MC, response strongly dependent upon measurement geometry; best if Cal Value is
determined using the actual measurement with clinical geometry.
M: Confidence value of a measurement made using the listed dial value.
Nuclide
Dial
Value
Decay
Scheme
Avg Beta
Energy
(keV)
Half-‐Life
Cont. Notes
Sr-‐85
Strontium
20.6
E
64.84d
C
+/-‐ 10% NIST
Sr-‐87m
Strontium
30.9
IT
2.795h
C
+/-‐ 10% NIST
Sr-‐89
Strontium
686.0 B-‐
583
50.55d
B
+/-‐ 20% NIST
Pure Sr-‐89. NIST Grade, **Brems…
Ta-‐178
Tantalum
16.6
E
9.31m
C
+/-‐ 10% NIST
Pure.
Tc-‐99m
Technelium
37.1
IT
6.007h
M +/-‐ 3%
NIST
Tl-‐201
Thallium
20.9
E
3.046d
M +/-‐ 3%
NIST
W-‐178
Tungsten
68.7
E
21.5d
C
+/-‐ 10% NIST
Pure.
W-‐178/Ta-‐178 Tungsten/Tantalum
13.4
E/E
21.5d/9.31m C
+/-‐ 10% NIST
Ta-‐178 in equilibrium with W-‐178 (use
for W contamination activity).
W-‐188/Re-‐188 Tungsten/Rhenium
82.1
B-‐
99 & 765 69.4d
C
+/-‐ 10% NIST
Includes **Bremsstralung contributions
from Re-‐188.
Xe-‐127
Xenon
11.0
E
36.4d
C
+/-‐ 10% NIST
Xe-‐133
Xenon
19.5
B-‐
100
5.245d
M +/-‐ 3%
NIST
Y-‐86
Yttium
3.4
B+
2.88
14.74h
C
+/-‐ 10% NIST
B+ contribution is ~ 12%.
Y-‐88
Yttium
4.9
E
106.6d
C
+/-‐ 10% NIST
Y-‐90
Yttium
350.0 B-‐
934
2.671d
M +/-‐ 5%
NIST
**Bremsstralung only, 10cc plastic
syringe (from 2002 vol study).
Y-‐90
Yttium
375.0 B-‐
934
2.671d
M +/-‐ 3%
NIST
**Bremsstralung only, NIST vial
measurement.
Y-‐90
Yttium
433.3 B-‐
934
2.671d
M +/-‐ 5%
NIST
**Bremsstrahlung only, Sir-‐Spheres
measurement.
Yb-‐169
Ytterbium
5.5
E
32d
C
+/-‐ 10% NIST
Zn-‐65
Zinc
21.2
E,B+
2
244.1d
C
+/-‐ 10% NIST
B+ contribution is ~ 3%.
Zr-‐89/Y-‐89m
Zirconium/Yttium
10.0
E,B+/IT
7.1
3.268d/16.1s C
+/-‐ 10% NIST
DIAL VALUE LIST FOR 500 CHAMBERS -‐ 8/31/2017
Expected
Uncertainty
Summary of Contents for ATOMLAB 500
Page 1: ...ATOMLAB 500 DOSE CALIBRATOR OPERATION AND SERVICE MANUAL 086 330 086 332 FN 17 355 9 17...
Page 89: ...Figure 6 28 A Geometry Test Reports Screen...
Page 162: ...10 Parts and Assembly Instructions TBD...
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