sounds like you were nearly there > this guy has to actually shave away some part of the diode to make it work? https://hackaday.io/project/204159-geigerwatch-

sounds like you were nearly there > this guy has to actually shave away some part of the diode to make it work? https://hackaday.io/project/204159-geigerwatch-a-sensitiv-ra https://hackaday.io/project/204159-geigerwatch-a-sensitiv-ra... Thats because he also wants to measure alpha and beta particles directly, if you are satisfied with high energy photons you wouldn't need to do that