|
Please consult the material safety data sheet (MSDS) for each product
for details.
|
Isotope |
Radiation |
Half-life |
Range |
Detection |
Shielding |
|
Carbon-14 (14C) |
Beta (low energy) |
5730 years |
24 cm in air |
Scintillation counters |
None. Can be absorbed through skin. |
|
Chromium-51 (51Cr) |
Gamma, x-ray
(high energy) |
27.8 days |
Long range |
Scintillation counters |
¼ to ½ inch lead |
|
Iodine-125 (125I) |
Gamma, x-ray (low energy) |
59.6 days |
Long range |
Scintillation counters |
Lead foil |
|
Iodine-131 (131I) |
Beta and gamma (high energy) |
8.0 days |
Long range |
Scintillation counters |
Lead |
|
Phosphorus-32 (32P) |
Beta (high energy) |
14.3 days |
610 cm in air |
Geiger-Muller tube |
1 cm plexiglass (no lead, x-ray will be produced) |
|
Phosphorus-33 (33P) |
Beta (low energy) |
25 days |
89 cm in air |
Geiger-Muller tube |
Plexiglass optional |
|
Sulphur-35 (35S) |
Beta (low energy) |
87.4 days |
26 cm in air |
Geiger-Muller tube |
Plexiglass optional |
|
Tritium
(3H) |
Beta (very low energy) |
12.4 years |
< 1 cm in air |
Scintillation counters |
None. Can be absorbed through skin. |
|
