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SBM-20 Geiger counter for Dosimeter, Radiometer. Tested, US $540 – Picture 0
SBM-20 Geiger counter for Dosimeter, Radiometer. Tested, US $540 – Picture 0

Sbm-20 Geiger Counter For Dosimeter, Radiometer. Tested

US $540

  • Lviv, Ukraine
  • Jun 4th
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SBM-20 (СБМ-20) Geiger counter for Dosimeter, Radiometer. Tested! GENERAL SPECIFICATIONS Parameters SBM-20 / SBM-20U Gas Filling Ne + Br2 + Ar Cathode Material Stainless Steel, 50 mkm Maximum Length (mm) 108 / 101 Effective Length (mm) 91.0 / 83.5 Maximum Diameter (mm) 11 Effective Diameter (mm) 10 Connector Pin Operating Temperature Range 0C -60 to +70     ELECTRICAL SPECIFICATIONS Parameters SBM-20 / SBM-20U Minimum Anode Resistor (meg ohm) 1.0 Recommended Anode Resistor (meg ohm) 5.1 Recommended Operating Voltage (volts) 400 Operating Voltage Range (volts) 350 - 475 Initial voltage (volts) 260 - 320 Plateau length (volts) at least 100 Maximum Plateau Slope (%/100 volts) 10 Minimum Dead Time (at U=400V, micro sec) 190 Working range (mkR/s) 0.004 - 40 Working range (mR/h) 0.014 - 144 Gamma Sensitivity Ra226 (cps/mR/hr) 29 Gamma Sensitivity Co60 (cps/mR/hr) 22 Inherent counter background (cps) 1 Tube Capacitance (pf) 4.2 Life (pulses) at least 2*1010 Weight (grams) 10 / 9

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