کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1831658 1027501 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Readout of GEM detectors using the Medipix2 CMOS pixel chip
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Readout of GEM detectors using the Medipix2 CMOS pixel chip
چکیده انگلیسی

We have operated a Medipix2 CMOS readout chip, with amplifying, shaping and charge discriminating front-end electronics integrated on the pixel level, as a highly segmented direct charge collecting anode in a Three-Stage Gas Electron Multiplier (Triple-GEM) to detect the ionization from 55Fe X-rays and electrons from 106Ru. The device allows to perform moderate energy spectroscopy measurements (20% FWHM at 5.9 keV X  -rays) using only digital readout and two discriminator thresholds. Being a truly 2D detector, it allows to observe individual clusters of minimum ionizing charged particles in Ar/CO2Ar/CO2 (70:30) and He/CO2He/CO2 (70:30) mixtures and to achieve excellent spatial resolution for position reconstruction of primary clusters down to ∼50μm, based on the binary centroid determination method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 573, Issue 3, 11 April 2007, Pages 361–370
نویسندگان
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