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FH 40 NBR Gamma Detection System
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 The famous blue NBR-detector and the Multi Purpose Survey
Meter FH 40 G:
portable system with unique features
- the NBR technique (Natural Background Rejection)
differentiates between natural radioactive material (NORM) and artificial, men made
sources
- tested and approved by TÜV
- powerful detection of DU-material (Depleted Uranium) in the field
- high gamma sensitivity: 2800 cps/uSv/h
- 1000 times more sensitive than normal gas filled detectors
- measuring range of 1 nSv/h up to 100 uSv/h and simultaneously measurement with FH 40 G up to 1Sv/h
- an artificial contribution of 10 nSv/h can be detected within a few seconds even in
fluctuating background radiation fields in the range of 50 - 100 nSv/h.
- contaminated material or hidden sources are located fast and reliably
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