Speaker
Description
Resistive Plate Chambers (RPCs) are widely used detectors in high-energy physics and related fields. Front-end electronics is driving cost in large-scale RPC systems. This contribution presents a comparative study of two novel readout strategies for the reduction of front-end electronics (FEE) channel count while preserving adequate spatial resolution and timing performance: TOMAR (TOMograohia Aplicada com RPCs / Applied Muon Tomography with RPCs) and CREW (Corner Readout Experiment Wiola).
TOMAR achieves excellent spatial resolution (sub millimeter) by employing a large number of thin readout strips. To reduce electronics costs, signals from these strips are connected in parallel groups to reduce the number of electronic channels needed. An aditional electrode equipped with thick strips desentagle the ambigutiy created by the parallel conection and provides timing. As a result timing and position resolution are preserved but significantly lowering the detector instrumentation cost and complexity.
CREW employs a different approach: a single continuous readout plate instrumented at only four corners. Timing information is recorded at each corner, and the hit position is reconstructed from differences in signal arrival times, achieving precision comparable to classical strip readout (a few millimiters). This geometry reduces the channel count to just four channels per readout cell while retaining full two-dimensional position sensitivity.
Both methods are evaluated in terms of spatial resolution, timing performance, and practical implementation considerations.