کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1685832 | 1010576 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurement of trace 129I concentrations in CsI powder and organic liquid scintillator with accelerator mass spectrometry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
Levels of trace radiopurity in active detector materials is a subject of major concern in low-background experiments. Procedures were devised to measure trace concentrations of 129I in the inorganic salt CsI as well as in organic liquid scintillator with Accelerator Mass Spectrometry (AMS). Improvements in sensitivities by several orders of magnitude over other methods were achieved. No evidence of 129I contaminations in CsI and liquid scintillator were observed, from which limits of <1.5 × 10−13 g/g and <2.6 × 10−17 g/g, respectively, were derived. These are the first results in a research program whose goals are to develop techniques to measure trace radioactivity in detector materials by AMS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 259, Issue 1, June 2007, Pages 271–276
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 259, Issue 1, June 2007, Pages 271–276
نویسندگان
K.J. Dong, M. He, S. Jiang, H.T. Wong, J.Z. Qiu, Y.J. Guan, S.H. Li, S.Y. Wu, M. Lin, Q.B. You, Y.W. Bao, Y.M. Hu, D. Zhou, X.Y. Yin, J. Yuan,