Neutron Counters

Counters are designed for registration of small streams of slow neutrons. Counter design allows working in high humidity conditions, and in the presence of electromagnetic interference (counters are radio frequency cable).

Counters are made of the following geometric dimensions:

the outer diameter of the cathode: 10, 13, 18, 25, 30, 32, 38, 50 mm;
length of the cathode: 80 – 1000 mm (if the cathode more 1000 mm – specify when ordering).
The filling pressure of the gas may be from 1 to 10 atm.

Designation of neutron counters when ordering:

  • neutron counters operating in а proportional mode "Helium D/L - P/XX";
  • neutron counters operating in а proportional mode, with high thermal stability "Helium T - D/L - P/XX";
  • neutron counters operating in а corona discharge "SNK - D/L - P/XX";
  • neutron counters operating in a corona discharge, with high thermal stability "SNKТ - D/L - P/XX";

where:
D - the outer diameter of the cathode, mm
L - overall length of cylindrical part of counter, mm. Includes the length of the cathode and the socle (If there is one).
P - gas filling pressure, atm.
ХХ - option of connector design of the neutron counter.

Table of correspondences of some names of neutron counters

The counter, produced by
SPF «Сonsensus»
Analogue of the counter
SNК-18/120-9,0/ОМ SNM-16
Helium-18/140-2,8/BC Helium-4/2,8
Helium-18/140-8,0/BC Helium-4
Helium-18/180-8,0/BC Helium-4-1
SNK-18/210-9,0/OM SNM-17
SNK-30/120-4,6/L
SNK-30/130-4,6/OM
SNK-32/120-4,0/L
SNК-32/130-4,0/ОМ
SNM-56
SNK-30/200-4,6/OMC
SNK-32/200-4,0/ОМC
SI19N
SNK-30/260-4,6/OM
SNК-32/260-4,0/ОМ
SNM-67
SNК-30/300-4,6/L
SNK-30/310-4,6/OM
SNК-32/300-4,0/L
SNK-32/310-4,0/ОМ
SNM-18-1
Helium-T-32/300-4.0/L SNM-18
Helium-T-18/120-8,0/L 251106
Helium-T-25/130-4,0/L 9,6He3/304/25
Helium-T-25/130-10.0/L 9,6He3/760/25
Helium-T-50/290-4.0/L 25He3/304/50
Helium-30/360-4,0/BC Helium-2-1/360
Helium-30/530-4,0/BC Helium-2-1
Helium-30/1030-4,0/BC Helium-2
Helium-30/1030-5,0/BC Helium-2М
SNK-50/90-4,0/L SNM-79
SNK-50/240-4,0/L SNM-77
SNK-50/300-4,0/L SNM-80