کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845688 | 1526518 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit Detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit](/preview/png/9845688.png)
چکیده انگلیسی
A small drift chamber was read out by means of a MediPix2 readout chip as a direct anode. A Micromegas foil was placed 50μm above the chip, and electron multiplication occurred in the gap. With a He/isobutane 80/20 mixture, gas multiplication factors up to tens of thousands were achieved, resulting in an efficiency for detecting single electrons of better than 90%. We recorded many frames containing 2D images with tracks from cosmic muons. Along these tracks, electron clusters were observed, as well as δ-rays.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 540, Issues 2â3, 21 March 2005, Pages 295-304
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 540, Issues 2â3, 21 March 2005, Pages 295-304
نویسندگان
M. Campbell, M. Chefdeville, P. Colas, A.P. Colijn, A. Fornaini, Y. Giomataris, H. van der Graaf, E.H.M. Heijne, P. Kluit, X. Llopart, J. Schmitz, J. Timmermans, J.L. Visschers,