Activity ratios for sealedsources—prescribed radionuclide values
Schedule 3 Activity ratios for sealedsources—prescribed radionuclide values
Regulation 10
Column 1 Prescribed radionuclide | Column 2 Value specified for the prescribed radionuclide— D-value Activity Level (GBq) |
|---|---|
Americium-241 | 60 |
Americium-241/Beryllium | 60 |
Cadmium-109 | 2 × 104 |
Caesium-137 | 100 |
Californium-252 | 20 |
Cobalt-57 | 700 |
Cobalt-60 | 30 |
Curium-244 | 50 |
Gadolinium-153 | 1 × 103 |
Germanium-68 | 700 |
Gold-198 | 200 |
Iodine-125 | 200 |
Iodine-131 | 200 |
Iridium-192 | 80 |
Iron-55 | 8 × 105 |
Krypton-85 | 3 × 104 |
Molybdenum-99 | 300 |
Nickel-63 | 6 × 104 |
Palladium-103 | 9 × 104 |
Phosphorus-32 | 1 × 104 |
Plutonium-238 | 60 |
Plutonium-239/Beryllium | 60 |
Polonium-210 | 60 |
Promethium-147 | 4 × 104 |
Radium-226 | 40 |
Ruthenium-106 (Rhodium-106) | 300 |
Selenium-75 | 200 |
Strontium-90 (Yttrium-90) | 1 × 103 |
Technetium-99m | 700 |
Thallium-204 | 2 × 104 |
Thulium-170 | 2 × 104 |
Tritium (H-3) | 2 × 106 |
Ytterbium-169 | 300 |
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