Architecture of a Silicon Strip Beam Position Monitor

TL;DR

This paper describes the design and implementation of a silicon strip beam position monitor for high-energy physics experiments, integrating custom detectors, readout electronics, and data acquisition systems.

Contribution

It introduces a novel silicon strip detector-based telescope system with integrated readout and data acquisition for precise beam position measurement.

Findings

Successful deployment of a 5-station silicon strip detector telescope

Effective data readout and processing using custom electronics and Ethernet links

High spatial resolution achieved with 60-micron pitch detectors

Abstract

A collaboration between Fermilab and the Institute for High Energy Physics (IHEP), Beijing, has developed a beam position monitor for the IHEP test beam facility. This telescope is based on 5 stations of silicon strip detectors having a pitch of 60 microns. The total active area of each layer of the detector is about 12x10 cm2. Readout of the strips is provided through the use of VA1` ASICs mounted on custom hybrid printed circuit boards and interfaced to Adapter Cards via copper-over-kapton flexible circuits. The Adapter Cards amplify and level-shift the signal for input to the Fermilab CAPTAN data acquisition nodes for data readout and channel configuration. These nodes deliver readout and temperature data from triggered events to an analysis computer over gigabit Ethernet links.