Front-end electronics and data acquisition system for a multi-wire 3D gas tracker

TL;DR

This paper details the design and implementation of a front-end electronics and DAQ system for multi-wire drift chambers, enabling precise hit position measurement along wires using charge division, with performance evaluated through off-line tests.

Contribution

It introduces a novel DAQ system with charge division capability for multi-wire drift chambers, enhancing position measurement accuracy.

Findings

Successful charge-division readout of low resistance wires

Enhanced position measurement along wires

System performance validated in off-line tests

Abstract

This paper presents the design and implementation of the front-end electronics and the data acquisition (DAQ) system for readout of multi-wire drift chambers (MWDC). Apart of the conventional drift time measurement the system delivers the hit position along the wire utilizing the charge division technique. The system consists of preamplifiers, and analog and digital boards sending data to a back-end computer via an Ethernet interface. The data logging software formats the received data and enables an easy access to the data analysis software. The use of specially designed preamplifiers and peak detectors allows the charge-division readout of the low resistance signal wire. The implication of the charge-division circuitry onto the drift time measurement was studied and the overall performance of the electronic system was evaluated in dedicated off-line tests.