Month: September 2019
Posted in S-series
SI-31G geiger
Author: l.i.papadopol Published Date: September 27, 2019
This is the biggest geiger tube I have seen! I’ve bought one for 25€ at eBay. Glass tube, thermostable. Cathode: tungsten powder. Length of the…
Posted in DIY
Lead castle
Author: l.i.papadopol Published Date: September 16, 2019
A lead castle, also called a lead cave or a lead housing, is a structure composed of lead to provide shielding against gamma radiation in…