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Typical activity content of a contemporary 3000 MW boiling water reactor (BWR) core (limited to some isotopes of main concern)
| Isotope | Activity content in TBq (1012 Bq) | Half-life |
|---|---|---|
| Xenon-133 (Xe-133) | 6 000 000 | 5.28 days |
| Iodine-131 (I-131) | 2 900 000 | 8.04 days |
| Iodine-133 (I-133) | 6 100 000 | 0.88 days |
| Cesium-134 (Cs-134) | 310 000 | 2.06 years |
| Cesium-137 (Cs-137) | 320 000 | 30.1 years |
| Strontium-90 (Sr-90) | 250 000 | 28.5 years |
Sandia National Laboratories (2012)
