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

M. S. Dixit·J. Dubeau·J. -P. Martin·K. Sachs
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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.

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M. S. Dixit, J. Dubeau, J. -P. Martin, K. Sachs. 2003-10-31. Position Sensing from Charge Dispersion in Micro-Pattern Gas Detectors with a Resistive Anode. https://doi.org/10.1016/j.nima.2003.09.051

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