In 1993 (seven years after Chernobyl; central Ukraine) we as teenagers were playing with a sensor. Holding it on unwashed palm was registering 40 microR/h. Was

In 1993 (seven years after Chernobyl; central Ukraine) we as teenagers were playing with a sensor. Holding it on unwashed palm was registering 40 microR/h. Washing was losing the readings down to 20 microR/h.