کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1828917 | 1027442 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A long-run study of aging in glass timing RPCs with analysis of the deposited material
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
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چکیده انگلیسی
In this study, aimed at timing RPCs operating in avalanche mode, we irradiated 0.3Â mm gas gaps for 790 days of continuous operation at 300Â Hz/cm2, corresponding to an accumulated charge of more than 20Â mC/cm2. No evidence of any systematic long-term increase of dark current was found, but a visual inspection confirmed the existence of a bluish deposit over the glass electrodes. The identification of the deposit components was made by liquid extraction with organic solvents and subsequent analysis by gas chromatography with mass spectroscopy detection. The identified species are oligomers of tetrafluoroethylene.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 602, Issue 3, 1 May 2009, Pages 775-779
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 602, Issue 3, 1 May 2009, Pages 775-779
نویسندگان
S. Gramacho, L. Lopes, M. Pineiro, P. Fonte, A.M.d'A. Rocha Gonsalves,