Title of article
The readout of a GEM or Micromegas-equipped TPC by means of the Medipix2 CMOS sensor as direct anode
Author/Authors
Colas، نويسنده , , P. and Colijn، نويسنده , , A.P. and Fornaini، نويسنده , , A. and Giomataris، نويسنده , , Y. and van der Graaf، نويسنده , , H. and Heijne، نويسنده , , E.H.M. and Llopart، نويسنده , , X. and Schmitz، نويسنده , , J. and Timmermans، نويسنده , , J. and Visschers، نويسنده , , J.L.، نويسنده ,
Pages
5
From page
506
To page
510
Abstract
We have applied the Medipix2 pixel CMOS chip as direct anode readout for a TPC. For the gas amplification two options have been investigated: (i) a three-stage GEM system and (ii) a Micromegas mesh. The structure of the cloud of primary electrons, left after interactions of 55 Fe quanta with the gas is visible with unprecedented precision. This proof-of-principle is an essential step in our project to realize a monolithic pixel sensor with integrated Micromegas, to be developed specially for the readout of TPCs, and applicable for drift chambers in general.
Keywords
GEM , Micromegas , Medipix2 , TPC , pixel , Pixel-segmented anode
Journal title
Astroparticle Physics
Record number
2025167
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