Product details
NEW (NOS) SBT-11 Geiger counters.
Original boxes, excellent condition.
One counter in one lot.
SBT11 end-face Geiger-Muller counter is designed for registration of soft beta radiation and is used in radio-technical devices of special equipment.
Technical characteristics of SBT11:
Operating voltage - from 350 V to 450 V.
Plateau length of the counting characteristic - not less than 80 V.
Registration energy - not less than 0,156 MeV.
Sensitivity to radiation - 50 imp/µR.
Counting start voltage - from 260 V to 320 V.
The plateau slope of the counting characteristic of SBT-11 is 0.3 %/V.
The slope of the volt-ampere characteristic of four sections is not more than 1.5 %/V.
Beta radiation registration efficiency is not less than 20 %.
Housing - metal, sectional.
Cathode material - stainless steel.
The operating mode of SBT11 counters is current and pulse.
Current:
- four sections - from 6 µA to 11 µA;
- one section - from 0.5 µA to 1.1 µA.
Pulse amplitude - not less than 10 V.
Output capacitance - from 8 pF to 12 pF.
Service life (number of pulses) of the product sensor SBT-11 - not less than 1010.
Overall dimensions - 29×55,5×23,5 mm.
Weight - not more than 30 g.
Operating conditions of SBT11:
Ambient air temperature - from -60°С to +65°С.
Climatic design - UHL.
