Geiger-Muller counter SI-1G (СИ-1Г). Lot-3pcs. 1973 NOS

Description

Geiger-Muller counter SI1G
This product may also be called: SI 1G, SI-1G, si1g, si 1g, si-1g.
Technical characteristics of SI1G:
Operating voltage - from 350 V to 450 V.
The length of the plateau of the counting characteristic is at least 80 V.
The voltage at the beginning of the count is from 280 V to 335 V.
The slope of the plateau of the counting characteristic is 0.125% / V.
Dosimetric characteristics of products SI1G counters:
- count rate (N) at 0.1 μR / s - from 496 imp / min to 744 imp / min;
- counting speed - 17 500 imp / min;
- maximum count rate (Nmax) - 105 imp / min;
- level of natural background (Nph) - 25 imp / min;
- maximum dose rate (Pmax), short-term - 50 R / h.
The case is glass.
The cathode is a stainless steel tube.
The load resistance SI-1G is from 5 MΩ to 10 MΩ.
The largest stray capacitance allowed in the input circuit is 10 pF.
Transitional input capacitance - from 7 pF to 15 pF.
Service life (number of pulses) - at least 109.
Ambient temperature - from -50 ° С to + 70 ° С.
Dimensions:
- diameter - no more than 50 mm;
- length - no more than 90 mm.
Weight - no more than 15 g.
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