Apparatus to show penetrating power of Alpha and...
Apparatus to show penetrating power of Alpha and Beta-Partic
Apparatus to show penetrating power of Alpha and Beta-Particles comprises radium source, dual probe type DPR2 made by EMI Electronics Ltd, Hayes, Middlesex, and portable contamination meter type 3, serial no.H1382, made by Nuclear Enterprises Ltd, Reading. In perspex case, 430mm wide x 330mm high x 320mm deep. Maximum width 540mm