Low level counting from meteorites to neutrinos

Details Low level counting from meteorites to neutrinos Low level counting from meteorites to neutrinos

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..785...39h&link_type=abstract

TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES: LRT 2004. AIP Conference Proceedings, Volume 785, pp. 39-47 (2005).

Physics

2

Photometric, Polarimetric, And Spectroscopic Instrumentation, X- And Gamma-Ray Spectroscopy, Gas-Filled Counters: Ionization Chambers, Proportional, And Avalanche Counters, Solar Neutrinos, Beta Decay, Double Beta Decay, Electron And Muon Capture

Scientific paper

The development in low level counting at Heidelberg with NaI(Tl) crystals, proportional counters and Germanium detectors is reviewed throughout the course of almost 40 years of experience. Research subjects changed from cosmogenic radionuclides in meteorites to solar neutrinos and double beta decay. Driven by screening measurements for these rare event experiments, the sensitivity in single gamma counting has gained almost 3 orders of magnitude. With Ge spectrometry the μBq/kg range is now accessible. It is discussed how further improvements can be realized. There is potential to reach a sensitivity at the level of 10 to 100 nBq/kg for cryogenic liquid type Gespectroscopy, a technique which the next generation 76Ge double beta decay experiment GERDA is based on.

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