@ Paolo Cravero Attached is an image of my tube. For detection of the Kr85 in this tube you need a beta-sensitve counter that is placed close to the tube. Just 1-2 cm away you cant detect it anymore
@gregebert If you have more tubes, only the area that is radioactive will be greater, the actual radiation is still 0.4uS/h but the area is now 6 tubes. You would only get more radiation if you would take 6 tubes in your hand. When in a clock most of the tube is shielded by the case. And for beta radiation - after penetrating the tube glass its only really weak, a few centimeters away you cant detect it anymore. @NeonJohn Nice! Thats a very interesting field of work :) and wow. 10k Ci Kr-85 thats really much - beside that, Kr-85 seems to be "quite save" for authorities, since here in Switzerland i could legally own up to 200mCi - which is a giant amount compared to other isotopes (like Sr-90 1.2uCi). Nice to hear that this nixie contained 1uCi of Kr-85, this leaves me with around 1nCi left -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0f85995d-94d2-4397-8bd5-2b5616c83496%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
