FH 40 G Radiological Dosimeter

Meet a variety of radiation detection applications with a versatile instrument. The FH 40 G is a wide-range digital Geiger counter suitable for nearly all measurement tasks in radiation protection, thanks to optional plug-and-play probes available for neutron measurements, alpha and beta contamination readings, and even artificial gamma radiation detection in variable natural radiation fields.

The FH 40 G instrument is available in different versions:

• FH 40 G
  Measured quantity: Roentgen (R)
  Measuring range: 1 μR/h ... 100 R/h
  Energy range: 36 keV ... 1.3 MeV
  Dose measurement range: 10 μR - 1000 R
• FH 40 GL
  Measured quantity: Roentgen (R)
  Measuring range: 1 μR/h ... 10 R/h
  Energy range: 36 keV ... 1.3 MeV
  Dose measurement range: 10 μR - 100 R
• FH 40 G-10
  Metered quantity: Sievert (Sv; rate equivalent to ambient dose H*(10))
  Measuring range: 10 nSv/h ... 1 Sv/h
  Energy range: 30 keV ... 4.4 MeV
  Dose measurement range: 100 nSv ... 10 Sv
• FH 40 G-L10
  Metered quantity: Sievert (Sv; rate equivalent to ambient dose H*(10))
  Measuring range: 10 nSv/h ... 100 mSv/h
  Energy range: 30 keV ... 4.4 MeV
  Dose measurement range: 100 nSv ... 1 Sv
• FH 40 GX
  No internal detector, operation only with plug and play external probe
  General specifications of all FH40G units
  Neutron dose rate measurement: FHT 762 WENDI-2, FHT 772 H-2 REMBALL
  Neutron research probes: FHT 752 SH-2 (He-3, 2bar)