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Boron-10 Lined Proportional Counter

Boron-10 Lined Proportional Counter

With the proper electronics, GE's Reuter Stokes Boron-10 proportional counter, is operable in a gamma flux of 10³ R/hr with about 50 percent loss in neutron sensitivity. This sensitivity loss is due to the higher discriminator setting that is necessary to cut out the piled-up gamma pulses. This also cuts out the smaller neutron pulses.

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Features

GE manufactures the Reuter Stokes Boron-10 lined proportional counter. With high temperature capabililty, low voltage operation, and trouble-free operation in an established installed base, thie detector is ideal for applications such as neutron surveys.

  • High temperature capabilities
  • Low operating voltage requirements make the 10B-lined counter a good choice for neutron survey meters
  • High gamma flux operation with reasonable neutron sensitivity

Specifications

Mechanical
  • Maximum diameter: 2.62 cm
  • Typical overall length (see Note 1) 39.04 cm
  • Connector type: HN female
  • Net weight: 0.15 kg
Material
  • Outer shell: 1100 Aluminum
  • Connector: Aluminum
  • Insulation:
    — Detector: Alumina ceramic
    — Connector: Alumina ceramic
  • Neutron sensitive material: Boron enriched to 92% in 10B
  • Fill gas:
    — Mixture: Argon – CO2
    — Pressure: 20 cm Hg
Capacitance
  • 7 pf
Resistance @ 25°C
  • 1012 ohms (minimum)
Maximum Ratings
  • Voltage: 2000 V
  • Temperature: 200°C
  • Operating gamma flux: 105 R/hr
Typical Operating Characteristics
  • Thermal neutron sensitivity (unperturbed)
    — in 0 R/hr: 4 cps/nv ± 20%
    — in 103 R/hr (see note 2): ~ 2 cps/nv
  • Voltage range: See plateau curve
  • Charge output (average): 2 x 10-13 coulombs @ 600V

Note 1: Other sensitive lengths are available between 7 cm and 180 cm.

Note 2: Thermal neutron sensitivity in a gamma radiation field is dependent on clipping times used in the preamplifier and amplifier. With short clipping times, gamma discrimination is possible, although some loss of neutron sensitivity may occur.

Typical Differential Pulse Height Spectrum boron-10-spec-1
Typical Plateau Curve boron-10-spec-2

Contact Us

Contact TypeContact Information
Application Engineering Nathan Johnson
Tel: (330) 963-2330
Mobile: (330) 352-0754
E-mail: nathan.johnson@ge.com
Global Sales (Excluding Asia)
Carlton Green
Tel: 208 761 8532
Mobile: (208) 761-8532
E-mail: carlton.green@ge.com
Global Sales (Asia) Masaki Urushihara
Tel: 81-3-5544-3815
Mobile: 81-80-3080-7080
E-mail: masaki.urushihara@ge.com

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Descriptions English
Boron-10 Proportional Counter-Fuel and Waste Assay Factsheet and Specifications acrobat-reader


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