Pictures:
Details:
Similar to the SI-14B pancake Geiger tube, the SI12B is a mica window compact Geiger tube, designed for measurement of alpha and soft beta-radiation.
Datasheet:
Temperature: -40 ºC to +70ºC
Relative humidity: up to 90%
Operating voltage range: 350V-550V
Plateau counting response: no less than 160V
Links:
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