Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf
1 PublikationDesign and performance of an ionisation chamber for the measurement of low alpha-activities
Hartmann, A.; Hutsch, J.; Krüger, F.; Sobiella, M.; Wilsenach, H.; Zuber, K.
Abstract
A new ionisation chamber for alpha-spectroscopy has been built from radio-pure materials for the purpose of investigating long lived alpha-decays. The measurement makes use of pulse shape analysis to discriminate between signal and background events. The design and performance of the chamber is described in this paper. A background rate of View the MathML source(10.9±0.6)countsperday in the energy region of 1–9 MeV was achieved with a run period of 30.8 days. The background is dominantly produced by radon daughters.
Keywords: Frisch grid; Ionisation chamber; Alpha-decay
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Nuclear Instruments and Methods in Physics Research A 814(2016), 12-18
DOI: 10.1016/j.nima.2016.01.033
Cited 20 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-24702