The SBT-10A is a Geiger-Muller tube containing 10 separated detectors, and a huge mica window which allows detection of α, β (hard and soft) and γ radiation. The STB-10A tube is designed to be operated in various PROFESSIONAL radiometric devices. It has very HIGH SENSITIVITY (efficiency of registration) in comparison to other counters.
Exellent readability at only 0.5-1.1uA average per each counter.
Voltage of start of counting: 260-320V
Operating Current each section (uA): 0.5-1.1uA
Recommended Operating Voltage: 390
Plateau Length/ Inclination: 80V/0.3%/V
Dead time (U=400V, micro sec): 50
Gamma Sensitivity Cs137 (cps/mR/hr): 240
Own Background (Pulses/s): 0,75
Working range (mkR/s): 0.003 – 20
Dimensions: 88mm, 68mm, 38mm