A radiotracer gas with a blend of 37Ar and 127Xe was created for a gas migration experiment and was characterized at Pacific Northwest National Laboratory using ultra-low-background proportional counters. This paper describes the direct low-energy measurement of 37Ar and 127Xe in a dual-isotope sample. Using this low-energy technique, the dual-isotope radiotracer gas was determined to have activity concentrations of 483 Bq/cc and 1,435 Bq/cc for 37Ar and 127Xe, respectively, and a ratio of 1:3 on the reference date of 7/11/2016.
Revised: April 19, 2019 |
Published: August 11, 2018
Citation
Mace E.K., C.E. Aalseth, A.R. Day, E.W. Hoppe, J.I. McIntyre, A. Seifert, and R.M. Williams. 2018.Direct Low-Energy Measurement of 37Ar and 127Xe in a Radiotracer Gas using Low-Background Proportional Counters.Journal of Radioanalytical and Nuclear Chemistry 318, no. 1:125-129.PNNL-SA-133392.doi:10.1007/s10967-018-6074-z