title: Low level noble gas measurements in the field and laboratory in support of the Comprehensive Nuclear-Test-Ban Treaty.
abstract: Over 300 daily environmental radioxenon samples were analyzed using French developed SPALAX for automatic sample preparation including high-resolution gamma-spectrometry. The 133Xe sensitivity was significantly better than 1 mBq/m3 (specified criterion for Comprehensive Nuclear-Test-Ban Treaty verification). Radioxenon analysis was extended to include the X-ray region by improved detector window, sample cell design, efficiency calibration, line shape fitting and background analysis. The resulting analysis offers a 4-16 fold improvement in sensitivity for 133mXe and 131mXe, respectively.
authors.affiliation: Radiation Protection Bureau, 775 Brookfield Rd., A.L. 6302D1, Ottawa, Ont., Canada K1A 1C1. trevor_stocki@hc-sc.gc.ca
authors.forename: Trevor J
authors.initials: TJ
authors.lastname: Stocki
authors.forename: Marc
authors.initials: M
authors.lastname: Bean
authors.forename: R Kurt
authors.initials: RK
authors.lastname: Ungar
authors.forename: Harri
authors.initials: H
authors.lastname: Toivonen
authors.forename: Weihua
authors.initials: W
authors.lastname: Zhang
authors.forename: Jeff
authors.initials: J
authors.lastname: Whyte
authors.forename: Dorothy
authors.initials: D
authors.lastname: Meyerhof