Development of an absolute gas-counting capability for low to medium activities.

Autor: Williams RM; Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA. Richard.Williams@pnnl.gov, Aalseth CE, Ely JH, Day AR, Hayes JC, Hoppe EW, Laferriere B, Mace EK, Merriman J, Overman CT, Seifert A
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2013 Nov; Vol. 81, pp. 179-83. Date of Electronic Publication: 2013 Mar 26.
DOI: 10.1016/j.apradiso.2013.03.064
Abstrakt: Pacific Northwest National Laboratory (PNNL) is developing a capability to measure the absolute activity concentration of gaseous radionuclides using length-compensated proportional-counting. This capability will enable the validation of low-level calibration standards for use in PNNL's new shallow underground laboratory. Two sets of unequal length proportional counters have been fabricated; one set has been fabricated using ultra-low background (ULB) electroformed copper and a second set fabricated from Oxygen-Free High-Conductivity Copper (OFHC).
(© 2013 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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