A high resolution scintillating fiber tracker with SiPM readout

Details A high resolution scintillating fiber tracker with SiPM readout A high resolution scintillating fiber tracker with SiPM readout

2007-03-15

arxiv.org/abs/physics/0703158v1

Nucl.Instrum.Meth.A581:423-426,2007

Physics

Instrumentation and Detectors

4 pages, 7 figures

Scientific paper

10.1016/j.nima.2007.08.019

A novel modular high-resolution charged-particle tracking detector design using $250\mu m$ 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 $300\mu m$ 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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