کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5497859 | 1532071 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of a low-level 39Ar calibration standard - Analysis by absolute gas counting measurements augmented with simulation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper describes the generation of 39Ar, via reactor irradiation of potassium carbonate, followed by quantitative analysis (length-compensated proportional counting) to yield two calibration standards that are respectively 50 and 3 times atmospheric background levels. Measurements were performed in Pacific Northwest National Laboratory's shallow underground counting laboratory studying the effect of gas density on beta-transport; these results are compared with simulation. The total expanded uncertainty of the specific activity for the ~50Ã 39Ar in P10 standard is 3.6% (k=2).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 126, August 2017, Pages 243-248
Journal: Applied Radiation and Isotopes - Volume 126, August 2017, Pages 243-248
نویسندگان
R.M. Williams, C.E. Aalseth, J.M. Brandenberger, A.R. Day, E. Finn, E.S. Fuller, E.W. Hoppe, P.H. Humble, M.E. Keillor, E.K. Mace, A.W. Myers, C.T. Overman, M.E. Panisko, A. Seifert, S.K. White,