Show r portable r table radium detector re 1 I A portable ratable radium detector sp spending to the slightest evidence eviden I 1 tc of 01 radioactive radio active material in an aver rr age room is reported by the he bureau f of 01 standards thi the device will help cox hi decrease accidental contamination 40 or of materials by radioactivity to I 1 ka i it 4 N plants and laboratories ot if readily locates lost particles particle I 1 radium it can measure the influx microgram micro ol of r radium ence of one eram at one meter distance |