A high resolution scintillating fiber tracker with SiPM readout

✍ Scribed by Henning Gast; Thomas Kirn; Gregorio Roper Yearwood; Stefan Schael

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 781 KB
• Volume: 581
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2007.08.019

✦ Synopsis

A novel modular high-resolution charged-particle tracking detector design using 250 mm diameter, round, scintillating fibers and SiPM arrays for readout is presented. The fiber modules consist of eight layers of 128 fibers, mechanically stabilized by a carbon fiber/Rohacell foam structure. A prototype using scintillating fibers with a diameter of 300 mm and two types of silicon photomultipliers has been tested in a 10 GeV proton beam in late October 2006 at the T9 PS-beamline, CERN. We present the measured spatial resolution, efficiency and signal-over-noise for this setup. The advantage of this tracker 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.