The detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit

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dc.creatorCampbell, M.
dc.creatorChefdeville, M.
dc.creatorColas, P.
dc.creatorColijn, A. P.
dc.creatorFornaini, A.
dc.creatorGiomataris, Y.
dc.creatorvan der Graaf, H.
dc.creatorHeijne, E. H. M
dc.creatorKluit, P.
dc.creatorLlopart, X.
dc.creatorSchmitz, J.
dc.creatorTimmermans, J.
dc.creatorVisschers, J. L.
dc.date2004-09-09
dc.date.accessioned2026-07-07T12:00:20Z
dc.date.available2026-07-07T12:00:20Z
dc.descriptionA small drift chamber was read out by means of a MediPix2 readout chip as direct anode. A Micromegas foil was placed 50 $μ$m 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 delta-rays.
dc.description15 pages, 9 included postscript figures, 5 separate jpeg figures, submitted to Nucl. Instr. and Meth. A. A complete postscript version with high resolution figures 1, 3, 11, 12 and 14 can be found at http://www.nikhef.nl/~i06/RandD/final/letter4.ps
dc.identifierhttps://arxiv.org/abs/physics/0409048
dc.identifierhttp://arxiv.org/abs/physics/0409048
dc.identifierNucl.Instrum.Meth.A540:295-304,2005
dc.identifierdoi:10.1016/j.nima.2004.11.036
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206824
dc.subjectInstrumentation and Detectors
dc.subjectHigh Energy Physics - Experiment
dc.titleThe detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit
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