Gamma-21

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Geiger-Muller counter of gamma-radiation

Well-known analogues: gamma-radiation counter 78017.

counter Gamma-21, analogues: 78017


Main characteristics

Starting voltage

V

340÷400

Operating voltage (recommended)

V

400

Operating voltage range

V

450÷650

Plateau length

V

200 min

Plateau slope

%·V-1

0,1 max

Sensitivity to 137Cs with dose rate 0,03 µR·s-1

µR-1

518÷634

Own background in the 50 mm Pb shield

cps

1,5 max

Operating temperature range

°С

-50÷+60

Life expectancy

count

1×1010

Weight

g

56 max

Overall dimensions

gamma-radiation counter

Typical count rate as a function of dose rate 137Сs

gamma-radiation counter

The scheme of connection

gamma-radiation counter

on top

Дополнительная информация