Position Sensing from Charge Dispersion in Micro-Pattern Gas Detectors with a Resistive Anode

Abstract

Micro-pattern gas detectors, such as the Gas Electron Multiplier (GEM) and the Micromegas need narrow high density anode readout elements to achieve good spatial resolution. A high-density anode readout would require an unmanageable number of electronics channels for certain potential micro-detector applications such as the Time Projection Chamber. We describe below a new technique to achieve good spatial resolution without increasing the electronics channel count in a modified micro-detector outfitted with a high surface resistivity anode readout structure. The concept and preliminary measurements of spatial resolution from charge dispersion in a modified GEM detector with a resistive anode are described below.

14 pages, 8 figures, submitted to Nucl. Inst. Meth; typo in eqn 4 corrected, fig 2 updated accordingly

Cited by in corpus (19)

• T2K ND280 Upgrade -- Technical Design Report
• Simulating the Charge Dispersion Phenomena in Micro Pattern Gas Detectors with a Resistive Anode
• Electric fields, weighting fields, signals and charge diffusion in detectors including resistive materials
• Study in a beam test of the resolution of a Micromegas TPC with standard readout pads
• Investigations of a THGEM-based imaging detector
• Detectors for Energy-Resolved Fast Neutron Imaging
• Performances of a resistive MicroMegas module for the Time Projection Chambers of the T2K Near Detector upgrade
• Micromegas TPC studies at high magnetic fields using the charge dispersion signal
• Characterization of resistive Micromegas detectors for the upgrade of the T2K Near Detector Time Projection Chambers
• Laboratory studies of THGEM-based WELL structures with resistive anodes
• Detectors for Time-of-Flight Fast-Neutron Radiography: 1. Neutron Counting Gas Detector
• TPC Performance in Magnetic Fields with GEM and Pad Readout
• The Thick Gas Electron Multiplier and its derivatives: physics, technologies and applications
• Spatial resolution of a GEM readout TPC using the charge dispersion signal
• Boron-10 lined RPCs for sub-millimeter resolution thermal neutron detectors: Feasibility study in a thermal neutron beam
• Electrical breakdown in Thick-GEM based WELL detectors
• First tests of a Micromegas TPC in a magnetic field
• Performance of a triple-GEM detector with capacitive-sharing 3-coordinate (X-Y-U)-strip anode readout
• Numerical study of track distortion in the Large Prototype TPC with end-plate based on bulk Micromegas