Fundamental Technologies

Ulysses HISCALE Pages

5.3 In-Flight Calibration Sources

ISPM/LAN Flight Unit Radioactive Sources*

LEMS 30 1 m Ci Americium-241
1 m Ci Barium-133
CD 60 1 m Curium-244
0.1 m Ci Gadolinium-148
LEMS 120 1 m Ci Americium-241
Americium-241 5.47 mV alphas degraded to 0.5 mV
Cirium-244 6.12 mV alphas
Gadolinium-148 3.18 mV alphas
Barium-133 45, 75, 266 and 319 kV electrons

*Will be mounted during storage period or at KSC

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Updated 1/23/09, T. Hunt-Ward