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Shenzhen Sunvision Electronic Co., Ltd.

China

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geiger muller counter tube SBM-21 High Sensitivity Beta Gamma Radiation Detection

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Description

Geiger Muller Counter Tube SBM-21 High Sensitivity Beta Gamma Radiation Detection

SBM-21 - smaller at the picture
Technical characteristics: GM counter for hard betta and gamma radiation. Weight = 0.8 gramme Range of registering gamma radiation = 0.1 ... 1000 mkRoentgen/sec Gamma sensitivity Cs137 = 6.5...9.5 pulses/sec at P=10 mkRoentgen Working range = 350...475 Volts Start of counting = 260...320 Volt Length of counting plateau = at least 100 Volts Pulses value = at least 50 Volt Plateau slope = 0.15 %/Volt Dead time at 400 Volt power = 64 Roentgen/mksec Maximum counting = no more than 650 pulses/sec Background noise = no more than 0.2 pulses/sec 

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