title: High sensitivity radon emanation measurements.
abstract: The presented radon detection technique employs miniaturized ultra-low background proportional counters. (222)Rn samples are purified, mixed with a counting gas and filled into a counter using a special glass vacuum line. The absolute sensitivity of the system is estimated to be 40 microBq (20 (222)Rn atoms). For emanation investigations two metal sealed stainless steel vessels and several glass vials are available. Taking into account their blank contributions, measurements at a minimum detectable activity of about 100 microBq can be performed.
authors.affiliation: Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany. Grzegorz.Zuzel@mpi-hd.mpg.de
authors.forename: G
authors.initials: G
authors.lastname: Zuzel
authors.forename: H
authors.initials: H
authors.lastname: Simgen
mesh_terms: D005740:Gases; D005898:Glass; D011834:Radiation Monitoring / Q000379:methods*; D011886:Radon / Q000032:analysis*; D013193:Stainless Steel
chemical_list: D005740:Gases; D013193:Stainless Steel; D011886:Radon