This tube is highly sensitive, similar to the STS-6, ideal to make a natural background monitoring equipment. It could be used also to make a personal dosimeter but it’s size is a limiting factor.
SI-22G tube
It’s characteristics:
- Working Voltage: 360 – 440V
- Initial Voltage: 285 – 335V
- Recommended Operating Voltage: 400V
- Plateau Length: 100V
- Plateau Slope: 0.125% / 1V
- Inherent counter background (cps): 1.16 Pulses/s
- Cobalt-60 Pulse Gamma Sensitivity: 540 pulse/uR
- Load Resistance: 9 – 13 MOhms
- Working Temperature Range: -50 to +70С
- Length: 220mm
- Diameter: 19mm