Development of an absolute gas-counting capability for low to medium activities
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- 作者：R.M. Williams ; C.E. Aalseth ; J.H. Ely ; A.R. Day ; J.C. Hayes ; E.W. Hoppe ; B. LaFerriere ; E.K. Mace ; J. Merriman ; C.T. Overman ; A. Seifert
- 关键词：Absolute radiation measurement ; Length compensated proportional counting ; Ultra low-background ; Electroformed copper ; Uncertainty analysis
- 刊名：Applied Radiation and Isotopes
- 出版年：2013
- 出版时间：November, 2013
- 年：2013
- 卷：81
- 期：Complete
- 页码：179-183
- 全文大小：727 K
文摘
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).