Disk Sources, Beta (large)
These source disks are larger than our standard disks.
They measure 1.75" in diameter and just under 1/8" thick.
ISOTOPE | ACTIVITY | HALF-LIFE | ENERGIES (KeV) |
| Carbon14 | 10uCi | 5730 years | 49.5 (average) |
ISOTOPE | ACTIVITY | HALF-LIFE | ENERGIES (KeV) |
| Iron55 | 100uCi | 2.73 years | 5.2 (average) |
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