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Helium-3 Position Sensitive Detector

Helium-3 Position Sensitive Detector

Position Sensitive, High Performance

GE offers the Reuter Stokes helium-3 filled position sensitive detectors designed specifically for applications including small angle neutron scattering and powder diffraction. As one of our most widely used position detectors, These counters are known for their precision performance and matching, position sensitivity and customization.

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Features

Our position sensitive proportional counter uses a highly resistive anode of nickel-chrome, which helps determine positioning of the neutron event along the anode. Position resolution is typically 0.1 to 0.4 inches (2.5 to 10 mm). The charge division method of determining position resolution is recommended. It is important to match the detector-preamplifier-amplifier electrical characteristics properly to determine accurate position resolution. Proportional counters are available in diameter of 0.315 to 2 inches (8 to 50.8 mm) in sensitive lengths of 4 to 40 inches (101,6 to 1,016 mm). Construction can be either 304 stainless steel or 1100 aluminum.

Specifications

Mechanical
  • Maximum diameter: 1.32 cm
  • Maximum overall length: 71.3 cm
  • Connectors (2) type: MHV
  • Net weight: 0.5 kg
Material
  • Outer shell: 304 Stainless Steel
  • Insulation: Alumina ceramic
  • Anode: Nickel-chrome
  • Neutron sensitive material: Helium-3
  • Total quantity of U-235: 12 mg
  • Fill pressure: 10 Atmospheres
Capacitance
  • 10 pf
Resistance @ 25°C
  • Detector: 1012 ohms
  • Anode (@140 ohms/in): 3900 ohms
Maximum Ratings
  • Voltage: 2500 V
  • Temperature: 100°C
Typical Operating Characteristics
  • Voltage range: 1200-1800 volts
  • Energy Resolution (FWHM): 10-12%
  • Position Resolution: 2.5-10 mm (see note)

Note : Position Resolution is greatly dependent on electronics used.

Typical Difference Pulse Height Spectrum

helium3-position-spec-1

helium3-position-spec-2

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Descriptions English
Helium-3 Filled Position Sensitive Proportional Counter Factsheet and Specifications acrobat-reader
Neutron Time-of-Flight Spectroscopy and Small-Angle Scattering Measurements Fact Sheet and Specifications acrobat-reader
Thermal Neutron Counting, Spectroscopy and Nuclear Materials Assay Fact Sheet and Specifications acrobat-reader
Time-of-Flight Spectroscopy Fact Sheet and Specifications acrobat-reader


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