A Scintillating Fiber Tracker With SiPM Readout

TL;DR

This paper introduces a novel scintillating fiber tracker with SiPM readout, demonstrating high spatial resolution and modular design suitable for particle tracking applications.

Contribution

It presents the first prototype of a scintillating fiber tracker using SiPM arrays with detailed performance results and innovative modular construction.

Findings

Achieved 88 micron spatial resolution

Demonstrated effective SiPM readout of scintillating fibers

Validated modular design for tracking detectors

Abstract

We present a prototype for the first tracking detector consisting of 250 micron thin scintillating fibers and silicon photomultiplier (SiPM) arrays. The detector has a modular design, each module consists of a mechanical support structure of 10mm Rohacell foam between two 100 micron thin carbon fiber skins. Five layers of scintillating fibers are glued to both top and bottom of the support structure. SiPM arrays with a channel pitch of 250 micron are placed in front of the fibers. We show the results of the first module prototype using multiclad fibers of types Bicron BCF-20 and Kuraray SCSF-81M that were read out by novel 32-channel SiPM arrays from FBK-irst/INFN Perugia as well as 32-channel SiPM arrays produced by Hamamatsu. A spatial resolution of 88 micron +/- 6 micron at an average yield of 10 detected photons per minimal ionizig particle has been achieved.