FHT 762 Wendi-2 Wide Energy Neutron Detector
Thermo Fisher Scientific

FHT 762 Wendi-2 Wide Energy Neutron Detector

Neutron dose rate detector with high sensitivity and excellent energy and angular response, thermal to 5 GeV according to H*(10), ICRP 74. Based on the WENDI-2 design originally developed at Los Alamos.

The detector is based on the WENDI-2 design originally developed at Los Alamos, and combines excellent energy response in the normal energy range up to 15 MeV with a close match to H*(10) behaviour up to 5 GeV. It is used as an external detector with the FHT 6020 area monitor or the FH 40 G survey meter.

  • Thermal to 5 GeV energy range according to H*(10), ICRP 74
  • High sensitivity due to large He-3 tube
  • Excellent gamma rejection: no significant spill-over for gamma dose rates up to 1 Sv/h
  • Fits the FHT 6020 area monitor and the FH 40 G survey meter

No prices online – you will receive a quotation with price and delivery time. Need accessories? Mention them in your request.

Authorised distributor in SwedenAll products from Thermo Fisher Scientific →

Technical data

Measuring range0.01 µSv/h to 100 mSv/h Cf-252
Sensitivity0.84 cps/(µSv/h) Cf-252
Energy range25 meV to 5 GeV according to ICRP 74 (1996)
Angular dependence±20 % all directions
Linearity±20 %
Gamma-sensitivity1 to 5 µSv/h at 100 mSv/h, 662 keV
Ambient temperature−30 to +50 °C
HumidityUp to 90 % non condensing
Atmospheric pressure500 to 1500 hPa
Size230 mm diameter, 320 mm height
Weight13.5 kg

Source: Thermo Fisher Scientific, FHT 762 Wendi-2 product specifications (2007). Full specifications are available in the documents.