Speakers
Dr
Martin Hofmann
(TU Munich)
Moritz v. Sivers
(Technische Universität München)
Description
We present two screening setups located in the Garching Underground Lab at a shallow depth of 10 m.w.e. One screening station consists of a 150% efficiency HPGe detector surrounded by an anti-Compton veto made of a NaI(Tl) scintillation detector. In addition, a passive lead shielding, a N2 flushed box and muon veto panels complete the setup.
With this setup we reach sensitivities down to 1 mBq/kg for U-238 and Th-232. The integral count rate in the energy range from 40-2700 keV is 10250+-26 cts/day.
The second newly set-up screening station consists of two smaller HPGe detectors arranged face-to-face which are also surrounded by a passive lead shielding, a N2 flushed box and muon veto panels. The integral count rate in the energy range from 20-1500 keV is 5258+-27 cts/day
and 6876+-31 cts/day for the two detectors, respectively.
Authors
Dr
Martin Hofmann
(TU Munich)
Moritz v. Sivers
(Technische Universität München)
