Large Beta-only radiation emitters
(These sources are larger disks measuring 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) |
