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Thanks for 100 years of trustPosition Sensitive Detectors (PSD)

Position Sensitive Detectors

A position sensitive detector (PSD) is a one-dimensional position sensor that makes use of the nuclear reaction between neutrons and helium-3.
Its signal can be amplified by applying a high voltage to the center electrode, and neutron positions can be calculated by connecting an outer circuit.
Toshiba Electron Tubes & Devices offers an assortment of PSDs to meet the needs of your neutron scattering instruments.


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.

Improved shock resistance


Position Sensitive Detectors Lineup Table
Image - - - - -
Tube Type E6871 E6882 E6867 E6880 E6868
General Specifications
Fill Gas 3He+ additive gas
Gas Pressure 1MPa - 2MPa (other pressure is available)
Housing Material SUS304
Effective Length Depends on "PSD Lineup Area"(other length is available)
Maximum Diameter 6.4mm 8.0mm 12.7mm 19.1mm 25.4mm
Connector SHV or Pigtail lead
Electrical Specifications
Operating Voltage Range 1,500 - 1,900VDC
Sensitivity -
Resolution approx. 5mm (Ex.E6867)

Neutron Proportional Counters Lineup Table
Image - -
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 on effective 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
Sensitivity 14 - 39 cps/nv
(depends on effective length)
2.1 - 8.0 cps/nv
(depends on effective length)
Resolution - -
PSD Lineup Area
Inquiry About Products USA:+1-847-484-2400  Europe:+49-0211-5296-107  Japan:+81-48-631-1020  China(Shanghai):+86-21-6361-0077  China(Beijing):+86-10-8515-2911

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