On Sun, Apr 23, 2017 at 5:21 PM, Nigel Dyer <l...@thedyers.org.uk> wrote:
> If I remember correctly it was something like that. The counter had to be > very close to register clicks, such that it was consistent with alpha > particles, but it was not stopped by a peice of paper, which would have > stopped alpha particles, but which would allow through a voltage transient. > I believe paper will allow beta particles through, which will also be picked up by a GM counter. I assume you were correct in your assessment that the dV/dT was messing with your GM counter. But I doubt a piece of paper would rule out everything interesting. Eric
