more materisla:
www.geiger-counter.com
https://github.com/2969773606/GeigerCounter-V1.1
Description:
Name:Radiation Detector system
Geiger tube parameters:
Technical parameters diameter:Φ10±0.5mm
Total length: 90±2mm
Starting voltage: < 350V
Recommended operating voltage: 380V
Minimum plateau length: 80V
Maximum plateau slope: 10%/80V
Extreme operating voltage: 550V
The maximum count rate: 25 times / min
Life: > 1 x 10^9 pulse
Medium temperature: -40 ~ 55 ℃
Size:108x63x20mm