CERN Accelerating science

Internal Note and Article
Report number	arXiv:1103.2739 ; LHCB-PUB-2011-010 ; CERN-LHCb-PUB-2011-010 ; CERN-LHCb-PUB-2011-010
Title	Charged Particle Tracking with the Timepix ASIC
Related title	Charged Particle Tracking with the Timepix ASIC
Author(s)	Akiba, Kazuyoshi (NIKHEF, Amsterdam) ; Artuso, Marina (Syracuse U.) ; Badman, Ryan (Syracuse U.) ; Borgia, Alessandra (Syracuse U.) ; Bates, Richard (Glasgow U.) ; Bayer, Florian (Erlangen - Nuremberg U., ECAP) ; van Beuzekom, Martin (NIKHEF, Amsterdam) ; Buytaert, Jan (CERN) ; Cabruja, Enric (Barcelona, Inst. Microelectron.) ; Campbell, Michael (CERN) ; Collins, Paula (CERN) ; Crossley, Michael (CERN ; Oxford U.) ; Dumps, Raphael (CERN) ; Eklund, Lars (Glasgow U.) ; Esperante, Daniel (Santiago de Compostela U.) ; Fleta, Celeste (Barcelona, Inst. Microelectron.) ; Gallas, Abraham (Santiago de Compostela U.) ; Gandelman, Miriam (Rio de Janeiro Federal U.) ; Garofoli, Justin (Syracuse U.) ; Gersabeck, Marco (CERN) ; Gligorov, V.V. (CERN) ; Gordon, Hamish (Oxford U.) ; Heijne, Erik H.M. (CERN ; NIKHEF, Amsterdam) ; Heijne, Veerle (NIKHEF, Amsterdam) ; Hynds, Daniel (Glasgow U.) ; John, Malcolm (Oxford U.) ; Leflat, Alexander (CERN ; SINP, Moscow) ; Ferre Llin, Lourdes (Glasgow U.) ; Llopart, Xavi (CERN) ; Lozano, Manuel (Barcelona, Inst. Microelectron.) ; Maneuski, Dzmitry (Glasgow U.) ; Michel, Thilo (Erlangen - Nuremberg U., ECAP) ; Nicol, Michelle (CERN ; Glasgow U.) ; Needham, Matt (Edinburgh U.) ; Parkes, Chris (Glasgow U.) ; Pellegrini, Giulio (Barcelona, Inst. Microelectron.) ; Plackett, Richard (CERN ; Glasgow U.) ; Poikela, Tuomas (CERN) ; Rodrigues, Eduardo (Glasgow U.) ; Stewart, Graeme (Glasgow U.) ; Wang, Jian-Chun (Syracuse U.) ; Xing, Zhou (Syracuse U.)
Note	Comments: 51 pages, 39 figures. To be submitted to Nucl. Phys. Meth. A. ; Contact authors: P. Collins and V. V. Gligorov 51 pages, 39 figures. Submitted to Nucl. Phys. Meth. A. ; Contact authors: P. Collins and V. V. Gligorov
To be published in:	Nucl. Instrum. Methods Phys. Res., A 661 (2012) 31-49
DOI	10.1016/j.nima.2011.09.021
Submitted by	[email protected] on 14 Mar 2011
Subject category	Detectors and Experimental Techniques ; Detectors and Experimental Techniques
Note type	UPGRADE, Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Free keywords	LHCb ; Upgrade
Abstract	A prototype particle tracking telescope has been constructed using Timepix and Medipix ASIC hybrid pixel assemblies as the six sensing planes. Each telescope plane consisted of one 1.4 cm2 assembly, providing a 256x256 array of 55 micron square pixels. The telescope achieved a pointing resolution of 2.3 micron at the position of the device under test. During a beam test in 2009 the telescope was used to evaluate in detail the performance of two Timepix hybrid pixel assemblies; a standard planar 300 micron thick sensor, and 285 micron thick double sided 3D sensor. This paper describes a detailed charge calibration study of the pixel devices, which allows the true charge to be extracted, and reports on measurements of the charge collection characteristics and Landau distributions. The planar sensor achieved a best resolution of 4.0 micron for angled tracks, and resolutions of between 4.4 and 11 micron for perpendicular tracks, depending on the applied bias voltage. The double sided 3D sensor, which has significantly less charge sharing, was found to have an optimal resolution of 9.0 micron for angled tracks, and a resolution of 16.0 micron for perpendicular tracks. Based on these studies it is concluded that the Timepix ASIC shows an excellent performance when used as a device for charged particle tracking.
Copyright/License	arXiv nonexclusive-distrib. 1.0 Preprint: (License: CC-BY-4.0)

Corresponding record in: Inspire
Email contact(s) : [email protected]