dorsal/arxiv
View SchemaSimulating the Charge Dispersion Phenomena in Micro Pattern Gas Detectors with a Resistive Anode
| Authors | M. S. Dixit, A. Rankin |
|---|---|
| Categories | |
| ArXiv ID | physics/0605121 |
| URL | https://arxiv.org/abs/physics/0605121 |
| DOI | 10.1016/j.nima.2006.06.050 |
| Journal | Nucl.Instrum.Meth.A566:281-285,2006 |
Abstract
The TPC for the International Linear Collider (ILC) will need to measure about 200 track points with a transverse resolution close to 100 microns. The resolution goal is beyond the capability of the conventional proportional wire/cathode pad TPC and Micro-Pattern Gas Detectors (MPGD) are being developed to meet the challenge. The standard MPGD readout techniques will, however, have difficulty in achieving the ILC-TPC resolution goal with the 2 mm x 6 mm pads as was initially envisioned. Proposals for smaller width pads will improve the resolution but will require a larger number of readout channels and increase the TPC detector cost and complexity. The new MPGD readout concept of charge dispersion has the potential to achieve the ILC-TPC resolution goal without resorting to narrower pads. This was recently demonstrated in cosmic ray tests of a small prototype TPC read out with MPGDs using the charge dispersion technique. Here we describe the simulation of the charge dispersion phenomena for the MPGD-TPC. The detailed simulation includes initial ionization clustering, electron drift, diffusion effects, the intrinsic detector pulse-shape and electronics effects. The simulation is in excellent agreement with the experimental data and can be used to optimize the MPGD charge dispersion readout for the TPC.
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"abstract": "The TPC for the International Linear Collider (ILC) will need to measure\nabout 200 track points with a transverse resolution close to 100 microns. The\nresolution goal is beyond the capability of the conventional proportional\nwire/cathode pad TPC and Micro-Pattern Gas Detectors (MPGD) are being developed\nto meet the challenge. The standard MPGD readout techniques will, however, have\ndifficulty in achieving the ILC-TPC resolution goal with the 2 mm x 6 mm pads\nas was initially envisioned. Proposals for smaller width pads will improve the\nresolution but will require a larger number of readout channels and increase\nthe TPC detector cost and complexity. The new MPGD readout concept of charge\ndispersion has the potential to achieve the ILC-TPC resolution goal without\nresorting to narrower pads. This was recently demonstrated in cosmic ray tests\nof a small prototype TPC read out with MPGDs using the charge dispersion\ntechnique. Here we describe the simulation of the charge dispersion phenomena\nfor the MPGD-TPC. The detailed simulation includes initial ionization\nclustering, electron drift, diffusion effects, the intrinsic detector\npulse-shape and electronics effects. The simulation is in excellent agreement\nwith the experimental data and can be used to optimize the MPGD charge\ndispersion readout for the TPC.",
"arxiv_id": "physics/0605121",
"authors": [
"M. S. Dixit",
"A. Rankin"
],
"categories": [
"physics.ins-det"
],
"doi": "10.1016/j.nima.2006.06.050",
"journal_ref": "Nucl.Instrum.Meth.A566:281-285,2006",
"title": "Simulating the Charge Dispersion Phenomena in Micro Pattern Gas Detectors with a Resistive Anode",
"url": "https://arxiv.org/abs/physics/0605121"
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