| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1847235 | Nuclear Physics B - Proceedings Supplements | 2006 | 4 Pages |
Abstract
A small TPC has been read out by means of a MediPix2 readout chip as direct anode. A Micromegas foil was placed 50 μm 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.
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Nuclear and High Energy Physics
