LOW-LEVEL BETA GM Multicounter System Model RISO GM-25-5
1,Specifications
Sample size:25mm. diameter
Background in 100mm lead shield:<0.2CPM(typically<0.15CPM)
Efficiency: 90Sr/Y: 54%
36Cl : 44%
99Tc : 42%
2, Principle and application
Low-level gas flow beta multicounter system measure 5 samples simultaneously. The multicounter is normally placed inside a lead shielding of 100 mm thickness to reduce the ambient background radiation.