Highly segmented thin microstrip detector with data-driven fast readout

TL;DR

This paper presents a high-resistivity double-sided silicon strip detector with a data-driven fast readout, tested with 12 GeV/c protons to evaluate its efficiency and resolution in a CERN test-beam.

Contribution

Introduction of a novel high resistivity double-sided silicon detector with short strips and a data-driven FSSR2 readout chip, demonstrating its performance in a test-beam environment.

Findings

High efficiency of the striplet detector

Good spatial resolution achieved

Effective data-driven readout demonstrated

Abstract

In September 2008 the Slim5 collaboration submitted a low material budget silicon demonstrator to test with 12 GeV/c protons, at the PS-T9 test-beam at CERN. Inside the reference telescope, two different detectors were placed as device under test (DUT). The first was a 4k-Pixel Matrix of Deep N Well MAPS, developed in a 130 nm CMOS Technology, providing digital sparsified readout. The other one was a high resistivity double sided silicon detector, with short strips at 45-degree angle to the detector's edge, read out by the FSSR2 chip. The FSSR2 is a 128 channel data-driven fast readout chip developed by Fermilab and INFN. In this paper we describe the main features of latter sensor, the striplet. The primary goal of the test was to measure the efficiency and the resolution of the striplets. The data-driven approach of the FSSR2 readout chips has been fully exploited by the DAQ system.