کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1829819 | 1027466 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Discovery of underground argon with low level of radioactive 39Ar and possible applications to WIMP dark matter detectors
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Discovery of underground argon with low level of radioactive 39Ar and possible applications to WIMP dark matter detectors Discovery of underground argon with low level of radioactive 39Ar and possible applications to WIMP dark matter detectors](/preview/png/1829819.png)
چکیده انگلیسی
We report on the first measurement of 39Ar in argon from underground natural gas reservoirs. The gas stored in the US National Helium Reserve was found to contain a low level of 39Ar. The ratio of 39Ar to stable argon was measured to be ⩽4×10-17⩽4×10-17 (84% C.L.), less than 5% the value in atmospheric argon (39Ar/Ar=8×10-1639Ar/Ar=8×10-16). The total quantity of argon currently stored in the National Helium Reserve is estimated at 1000 tons. 39Ar represents one of the most important backgrounds in argon detectors for WIMP dark matter searches. The findings reported demonstrate the possibility of constructing large multi-ton argon detectors with low radioactivity suitable for WIMP dark matter searches.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 587, Issue 1, 11 March 2008, Pages 46–51
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 587, Issue 1, 11 March 2008, Pages 46–51
نویسندگان
D. Acosta-Kane, R. Acciarri, O. Amaize, M. Antonello, B. Baibussinov, M. Baldo Ceolin, C.J. Ballentine, R. Bansal, L. Basgall, A. Bazarko, P. Benetti, J. Benziger, A. Burgers, F. Calaprice, E. Calligarich, M. Cambiaghi, N. Canci, F. Carbonara,