Readout of GEM Detectors Using the Medipix2 CMOS Pixel Chip

dc.creatorBamberger, A.
dc.creatorDesch, K.
dc.creatorRenz, U.
dc.creatorTitov, M.
dc.creatorVlasov, N.
dc.creatorWienemann, P.
dc.creatorZwerger, A.
dc.date2006-11-23
dc.date.accessioned2026-07-07T11:24:06Z
dc.date.available2026-07-07T11:24:06Z
dc.descriptionWe 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 $^{55}$Fe X-rays and electrons from $^{106}$Ru. 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 $Ar/CO_2$ (70:30) and $He/CO_2$ (70:30) mixtures and to achieve excellent spatial resolution for position reconstruction of primary clusters down to $\sim 50 μm$, based on the binary centroid determination method.
dc.description18 pages, 14 pictures. submitted to Nuclear Instruments and Methods in Physics Research A
dc.identifierhttps://arxiv.org/abs/physics/0611229
dc.identifierhttp://arxiv.org/abs/physics/0611229
dc.identifierNucl.Instrum.Meth.A573:361-370,2007
dc.identifierdoi:10.1016/j.nima.2006.12.049
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195120
dc.subjectInstrumentation and Detectors
dc.titleReadout of GEM Detectors Using the Medipix2 CMOS Pixel Chip
dc.typetext

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