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A high resolution scintillating fiber tracker with SiPM readout

Henning Gast·Thomas Kirn·Gregorio Roper Yearwood·Stefan Schael
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Abstract

A novel modular high-resolution charged-particle tracking detector design using $250μm$ diameter, round, scintillating fibers and SiPM arrays for readout is presented. The fiber modules consist of 8 layers of 128 fibers, mechanically sta bilized by a carbon fiber / Rohacell foam structure. A prototype using scintillating fibers with a diameter of $300μm$ and two typ es of silicon photomultipliers has been tested in a $10GeV$ proton beam in late October 2006 at the T9 PS-beamline, CERN. We present the measured spatial resolu tion, efficiency and signal-over-noise for this setup. The advantage of this tra cker concept is a compact and modular design with low material budget and only little or no cooling requirements depending on the quality of the silicon photomultiplieres.

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Henning Gast, Thomas Kirn, Gregorio Roper Yearwood, Stefan Schael. 2007-03-15. A high resolution scintillating fiber tracker with SiPM readout. https://doi.org/10.1016/j.nima.2007.08.019

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