Helicopter-borne Radiometrics (HRD)
Description
The BGR helicopter (Sikorsky S-76B) is used for airborne geophysical surveying of the Earth’s subsurface. The standard equipment comprises the methods electromagnetics, magnetics and radiometrics. The passive helicopter-borne radiometric (HRD) measuring system is a gamma-ray spectrometer, which is installed into the helicopter. The detector of the spectrometer consists of five Sodium-iodide crystals (volume: 4 l per NaI crystal). The spectral range of gamma radiation recorded ranges from 0 to 3 MeV. The results are displayed as total count rate and the (equivalent) concentrations of Thorium, Uranium and Sodium as well as the exposure rate at ground level.
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Tags
- airborne-geophysics
- uran
- äquivalentgehalte
- aerogeophysik
- uranium
- equivalent-concentrations
- ionendosisleistung
- geology
- helicopter-borne-radiometrics
- thorium
- potassium
- hubschrauber-radiometrie
- deutschland
- exposure-rate
- kalium