3 ms·
Also, correct me if I'm wrong, but Cs-137 has a half life of 30 years or something. It certainly does not disappear quickly. Most of the Chernobyl contamination
by lutorm 16y ago
Also, correct me if I'm wrong, but Cs-137 has a half life of 30 years or something. It certainly does not disappear quickly. Most of the Chernobyl contamination in Sweden was from Cesium, and that made berries and reindeer (which eat lichens) unsafe to eat for many years, if not decades.
- neutronicus 16y agoYeah, 30 years. There was a lot of background radiation from Cs-137 from all the old nuclear testing that's disappearing now.
- fxj 16y agoummm half life means factor 2 in activity reduction. to obtain a factor 1000 in activity reduction you would have to wait 10 times as long. 300 years?