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A vertex detector for the International Linear Collider based on CMOS sensors

Abstract : The physics programme at the International Linear Collider (ILC) calls for a vertex detector (VD) providing unprecedented flavour tagging performances, especially for c-quarks and τ leptons. This requirement makes a very granular, thin and multi-layer VD installed very close to the interaction region mandatory. Additional constraints, mainly on read-out speed and radiation tolerance, originate from the beam background, which governs the occupancy and the radiation level the detector should be able to cope with. CMOS sensors are being developed to fulfil these requirements. This report addresses the ILC requirements (highly related to beamstrahlung), the main advantages and features of CMOS sensors, the demonstrated performances and the specific aspects of a VD based on this technology. The status of the main R&D directions (radiation tolerance, thinning procedure and read-out speed) are also presented.
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Contributor : Béatrice Forrler <>
Submitted on : Thursday, January 11, 2007 - 1:44:29 PM
Last modification on : Tuesday, July 21, 2020 - 10:02:03 AM
Long-term archiving on: : Tuesday, April 6, 2010 - 7:55:53 PM




A. Besson, G. Claus, C. Colledani, Y. Degerli, G. Deptuch, et al.. A vertex detector for the International Linear Collider based on CMOS sensors. 10th European Symposium on Semiconductor Detectors, Jun 2005, Wildbad Kreuth, Germany. pp.233-239, ⟨10.1016/j.nima.2006.05.279⟩. ⟨in2p3-00123716⟩



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