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          Institute: MPI für Kernphysik     Collection: Neutrino Physics     Display Documents



  history
ID: 207261.0, MPI für Kernphysik / Neutrino Physics
Ar and Kr concentrations in nitrogen as a measure of the Ar-39 and Kr-85 activities in connection with the solar neutrino experiment BOREXINO
Authors:Zuzel, Grzegorz; Simgen, Hardy; Heusser, Gerd
Language:English
Date of Publication (YYYY-MM-DD):2004-08
Title of Journal:Applied Radiation and Isotopes
Journal Abbrev.:Appl. Rad. Isot.
Volume:61
Issue / Number:2-3
Start Page:197
End Page:201
Title of Issue:Low Level Radionuclide Measurement Techniques - ICRM
Full name of Issue-Editor(s):M. Schwaiger, R. Edelmaier, E. Holm and S. Jerome
Copyright:PERGAMON-ELSEVIER SCIENCE LTD
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Among other radionuclides, 39Ar and 85Kr are potential background sources in the solar neutrino detector Borexino. The expected low event rate requires that the nitrogen used in the experiment needs to have lower concentrations than 0.5 microBq/m3 for 39Ar and 0.2 microBq/m3 for 85Kr, corresponding to volume concentrations in N2 of 0.4E−6 m3/m3 for Ar and 0.2E-12 m3/m3 for Kr. Applying gas mass spectrometry and special care in the sampling technique we succeeded in finding the required purity. In addition, we studied the possibility to purify nitrogen from Kr by the adsorption method.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Independent Research Group S. Schönert/Neutrino Physics
Identifiers:URL:http://www.sciencedirect.com/science?_ob=ArticleUR...
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