Mirion Technologies GEM-5 User Manual

Simulator Mode
Gem-5 User’s Manual 317
D. Isotope Library
The F9 – Edit Calibration Source List screen (137) provides automatic loading of
data for many common isotopes using a built-in library
17
. The list of isotopes and
their half lives are shown in . Alternatively, one can use the CALIB.INI file. For
uncertainties, see Supplementary Bayesian Methodology User's Manual.
Table 23 Built-in Isotope Library
Isotope Half Life (Years) Isotope Half Life (Years)
Am-241 432.2 Pm-147 2.6234
Ba-133 10.52 Po-210 0.378845
Bi-210
0. 13770
Pu-238
87.7
C-14
5,730,000
Pu-239
24,110
Cd-109 1.26738 Sr-89 0.138347
Cf-252 2.645 Sr-90 28.6
Cl-36 301,000 Tc-99 211,100
Co-57 0.744136 Th-228 1.912
Co-60 5.2714 Th-230 75,380
Cs-137
30.07
Tl-204
3.78
Fe-55
2.73
U-235
703,800,000
I-125 0.162637 U-238 4,768,800,000
I-129 15,700,000 W-185 0.2056
Mn-54 0.854556 Y-88 0.291998
Na-22 2.6088
17
Values shown are courtesy of PCNUDAT (http://www.nndc.bnl.gov/nndcscr/pc_prog/)

Mirion Technologies GEM-5 Specifications

General

Brand	Mirion Technologies
Model	GEM-5
Category	Monitor
Language	English