dorsal/arxiv
View SchemaThe detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit
| Authors | 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 |
|---|---|
| Categories | |
| ArXiv ID | physics/0409048 |
| URL | https://arxiv.org/abs/physics/0409048 |
| DOI | 10.1016/j.nima.2004.11.036 |
| Journal | Nucl.Instrum.Meth.A540:295-304,2005 |
Abstract
A small drift chamber was read out by means of a MediPix2 readout chip as direct anode. A Micromegas foil was placed 50 $\mu$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.
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"abstract": "A small drift chamber was read out by means of a MediPix2 readout chip as\ndirect anode. A Micromegas foil was placed 50 $\\mu$m above the chip, and\nelectron multiplication occurred in the gap. With a He/Isobutane 80/20 mixture,\ngas multiplication factors up to tens of thousands were achieved, resulting in\nan efficiency for detecting single electrons of better than 90% . We recorded\nmany frames containing 2D images with tracks from cosmic muons. Along these\ntracks, electron clusters were observed, as well as delta-rays.",
"arxiv_id": "physics/0409048",
"authors": [
"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"
],
"categories": [
"physics.ins-det",
"hep-ex"
],
"doi": "10.1016/j.nima.2004.11.036",
"journal_ref": "Nucl.Instrum.Meth.A540:295-304,2005",
"title": "The detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit",
"url": "https://arxiv.org/abs/physics/0409048"
},
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