Development of high resolution Micro-Pattern Gas Detectors with wide readout pads

Abstract

A Micro Pattern Gas Detector (MPGD) requires 200 μm wide anode readout pads to achieve ∼ 40 μm resolution. With the development of the new charge dispersion readout concept for MPGDs with a resistive anode, comparable resolution can be achieved with order of magnitude wider pads. We present here an overview and present status of the charge dispersion MPGD readout technology. The development of MPGDs with a resistive anode may permit experiments with large area high resolution tracking requirements to consider using MPGDs which would have been otherwise prohibitive due to excessive readout channel count.