FYKOS Year 29 Series 1 Problem 5 — chernobyl · FYKOS 29 #29.1.5
Physics · modern-physics
Problem
If someone would eat 5 µg of the isotope of cesium ^{137}Cs, how long would it take for them to have only0,04 % of the original amount of this isotope? Assume that cesium ^{137}Cs has a half-life of 30,42 let and a biological half-life (the time it takes for half of the original amount of the material to leave the body) is approximately 5 days. Determine also, how many of the particles will have decayed in the body up till then.