Bibliographic Details
| Title: |
Detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit |
| Authors: |
Campbell, M.1, Chefdeville, M.2, Colas, P.2, Colijn, A.P.3, Fornaini, A.3,4, Giomataris, Y.2, van der Graaf, H.3, Heijne, E.H.M.1, Kluit, P.3, Llopart, X.1, Schmitz, J.4, Timmermans, J.3 timmermans@nikhef.nl, Visschers, J.L.3 |
| Source: |
Nuclear Instruments & Methods in Physics Research Section A. Mar2005, Vol. 540 Issue 2/3, p295-304. 10p. |
| Subjects: |
Electrons, Complementary metal oxide semiconductors, Anodes, Particles (Nuclear physics) |
| Abstract: |
Abstract: 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 -rays. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
