A new shallow underground gas-proportional counting lab--first results and Ar-37 sensitivity

Autor: Jason H. Merriman, Allen Seifert, Craig E. Aalseth, Erin S. Fuller, A.W. Myers, Emily K. Mace, Richard M. Williams, Eric W. Hoppe, Glen A. Warren, Anthony R. Day, Martin E. Keillor, Cory T. Overman, Mark E. Panisko, B. LeFerriere
Rok vydání: 2012
Předmět:
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 81
ISSN: 1872-9800
Popis: A new ultra-low-background proportional counter was recently developed with an internal volume of 100 cm(3) and has been characterized at pressures from 1-10 atm with P-10 (90% Ar, 10% methane) gas. This design, along with a counting system providing event digitization and passive and active shielding, has been developed to complement a new shallow underground laboratory (30 m water-equivalent). Backgrounds and low-level reference materials have been measured, and system sensitivity for (37)Ar has been calculated.
Databáze: OpenAIRE