The CLAS12 Silicon Vertex Tracker
DOI
10.1016/j.nima.2020.163701
Abstract
For the 12 GeV upgrade of Jefferson Laboratory, a Silicon Vertex Tracker (SVT) has been designed for theCLAS12 spectrometer using single-sided microstrip sensors fabricated by Hamamatsu Photonics. The sensors have a graded angle design to minimize dead areas and a readout pitch of156 μm, with intermediate strips. Each double-sided SVT module hosts three daisy-chained sensors on each side with a full strip length of33 cm. There are 512 channels per module, read out by four Fermilab Silicon Strip Readout (FSSR2) chips, featuring data-driven architecture, mounted on a rigid–flex hybrid board. The modules are assembled in a barrel configuration using a unique cantilevered geometry to minimize the amount of material in the tracking volume. This paper is focused on the design, qualification of the performance, and experience in operating and commissioning the tracker during the first year of the data taking.
Document Type
Article
Publication Date
5-2020
Publisher Statement
Copyright © 2020 Elsevier B.V. All rights reserved.
Recommended Citation
M.A. Antonioli, N. Baltzell, S. Boyarinov, P. Bonneau, S. Christo, C. Cuevas, M. Defurne, G. Derylo, L. Elouadrhiri, B. Eng, T. Ewing, G. Gilfoyle, et al. "The CLAS12 Silicon Vertex Tracker," Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 962, 2020, 163701, https://doi.org/10.1016/j.nima.2020.163701.