Observations of sensor bias dependent cluster centroid shifts in a prototype sensor for the LHCb Vertex Locator detector

A. Papadelis

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We present results from a recent beam test of a prototype sensor for the LHCb Vertex Locator detector, read out with the Beetle1.3 front-end chip. We have studied the effect of the sensor bias voltage on the reconstructed cluster positions in a sensor placed in a 120 GeV pion beam at a
10∘
incidence angle. We find an unexplained systematic shift in the reconstructed cluster centroid when increasing the bias voltage on an already overdepleted sensor. The shift is independent of strip pitch and sensor thickness.
Original languageEnglish
Pages (from-to)88-91
Number of pages4
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume569
Issue number1
Early online date29 Sep 2006
DOIs
Publication statusPublished - 10 Dec 2006

Bibliographical note

Part of special issue: Proceedings of the 14th International Workshop on Vertex Detectors: VERTEX 2005. Edited by Akiya Miyamoto, Yoshinobu Unno, Junji Haba, Yasuhiro Sugimoto

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