کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1878749 1532115 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of an absolute gas-counting capability for low to medium activities
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Development of an absolute gas-counting capability for low to medium activities
چکیده انگلیسی


• Length-compensated internal proportional counting is discussed.
• We described the development of low-background unequal-length proportional counters.
• We described the development of unequal-length OFHC proportional counters.
• A gas mixing and transfer system is described.
• An uncertainty analysis, following the ISO GUM guidelines, is presented.

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).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 81, November 2013, Pages 179–183
نویسندگان
, , , , , , , , , , ,