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Detection of single electrons by means of a Micromegas-covered Medipix2 pixel CMOS readout circuit
- Campbell, M (author)
- Chefdeville, M (author)
- Colas, P (author)
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- Colijn, A P (author)
- Fornaini, A (author)
- Giomataris, Y (author)
- van der Graaf, H (author)
- Heijne, E H M (author)
- Kluit, P (author)
- Schmitz, J (author)
- Timmermans, J (author)
- Visschers, J L (author)
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- (creator_code:org_t)
- Elsevier BV, 2005
- 2005
- English.
- In: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 540:2-3, s. 295-304
- Journal article (peer-reviewed)
Abstract
Subject headings
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- A small drift chamber was read out by means of a MediPix2 readout chip as a direct anode. A Micromegas foil was placed 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Micromegas; MediPix2; TPC; Single electron; Pixel; Pixel segmented anode
- Electrical engineering, electronics and photonics
- Elektroteknik, elektronik och fotonik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Campbell, M
- Chefdeville, M
- Colas, P
- Colijn, A P
- Fornaini, A
- Giomataris, Y
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- van der Graaf, H
- Heijne, E H M
- Kluit, P
- Llopart Cudié, X ...
- Schmitz, J
- Timmermans, J
- Visschers, J L
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- Mid Sweden University
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