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Neutron Proportional Counters (NPC)

Neutron Proportional Counters (NPC)

A neutron proportional counter (NPC) is a detector that makes use of the nuclear reaction between neutrons and helium-3 or boron-10.
Its signal can be amplified by applying a high voltage to the center electrode.
NPCs are suitable for use in low radiation environments.

Features

  1. Long life and high stability
    Chemical cleaning and high-temperature exhausting under vacuum condition on the detector completely eliminates impurities.
    Strict management of the filler gas.

  2. Improved shock resistance

Lineup

TUBE TYPE E6862 E6863
General Specifications
Fill Gas 3He+ additive gas(n,p)by He3 Ar+ additive gas(n,α)by B10
Gas pressure approx. 0.4MPa approx. 30kPa
Housing Material SUS304 SUS304
Maximum length 245-595mm
(depends on effective length)
245-1,095mm
(depends oneffective length)
Maximum Diameter 25.5mm 25.5mm
Effective Length 150-500mm 150-1,000mm
Connector HN HN
Electrical Specifications
Operating Voltage Range 1,550-1,850VDC 650-850VDC
Performance  
Sensitivity 14-39 cps/nv
(depends on effective length)
2.1-8.0 cps/nv
(depends on effective length)
Resolution - -