10-12 April 2013
INFN - Laboratori Nazionali del Gran Sasso
Europe/Rome timezone

Low-Background Gamma-Ray Spectrometry in the Garching Underground Laboratory

11 Apr 2013, 15:00
1h 20m
E. Fermi auditorium (INFN - Laboratori Nazionali del Gran Sasso)

E. Fermi auditorium

INFN - Laboratori Nazionali del Gran Sasso

SS 17 bis, km 18 + 910, 67100 Assergi (AQ), Italy
poster Screening facilities and low background detectors Poster session

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.

Primary authors

Dr Martin Hofmann (TU Munich) Moritz v. Sivers (Technische Universität München)

Presentation Materials

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