skip to main content

SciTech ConnectSciTech Connect

Title: Initial characterization of unequal-length, low-background proportional counters for absolute gas-counting applications

Characterization of two sets of custom unequal length proportional counters is underway at Pacific Northwest National Laboratory (PNNL). These detectors will be used in measurements to determine the absolute activity concentration of gaseous radionuclides (e.g., {sup 37}Ar). A set of three detectors has been fabricated based on previous PNNL ultra-low-background proportional counter designs and now operate in PNNL's shallow underground counting laboratory. A second set of four counters has also been fabricated using clean assembly of Oxygen-Free High-Conductivity copper components for use in a shielded above-ground counting laboratory. Characterization of both sets of detectors is underway with measurements of background rates, gas gain, and energy resolution. These results will be presented along with a shielding study for the above-ground cave.
Authors:
; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN J4-80, Richland, WA (United States)
Publication Date:
OSTI Identifier:
22218193
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1549; Journal Issue: 1; Conference: LRT 2013: 4. international workshop on low radioactivity techniques, Assergi (Italy), 10-12 Apr 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ARGON 37; CONCENTRATION RATIO; COPPER; DESIGN; ENERGY RESOLUTION; GAIN; LENGTH; OXYGEN; PROPORTIONAL COUNTERS; SHIELDING; UNDERGROUND