کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845081 | 1526506 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance of a micro-channel plates position sensitive detector
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The absolute detection efficiency of large area micro-channel plates (MCPs) detectors has been measured with 6Li+ and 23Na+ ions in the 0.5-7.5 keV energy range. Two detectors of 47 mm and 83 mm active diameter have been tested. They consist in a pair of MCPs mounted in a chevron configuration with delay line anodes for position readout. The efficiency saturates above 3000 eV, reaching a value of 52.3(3)%, consistent with the MCPs geometry. The behaviour of the efficiency with respect to the ion kinetic energy is ascribed to the electronic threshold, through a detailed analysis of the collected charge distribution. The efficiency dependence on the ions impact position and incidence angle has also been studied. A loss of efficiency has been observed in the vicinity of the MCPs bias angle, which can be avoided if a large post-acceleration field is created in front of the MCPs. Finally the study of a position calibration is presented. A position resolution of 110(26) μm has been achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 551, Issues 2â3, 11 October 2005, Pages 375-386
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 551, Issues 2â3, 11 October 2005, Pages 375-386
نویسندگان
E. Liénard, M. Herbane, G. Ban, G. Darius, P. Delahaye, D. Durand, X. Fléchard, M. Labalme, F. Mauger, A. Mery, O. Naviliat-Cuncic, D. RodrÃguez,