dorsal/arxiv
View SchemaSpatial resolution of a GEM readout TPC using the charge dispersion signal
| Authors | K. Boudjemline, M. S. Dixit, J. -P. Martin, K. Sachs |
|---|---|
| Categories | |
| ArXiv ID | physics/0610232 |
| URL | https://arxiv.org/abs/physics/0610232 |
| DOI | 10.1016/j.nima.2007.01.017 |
| Journal | Nucl.Instrum.Meth.A574:22-27,2007 |
Abstract
A large volume Time Projection Chamber (TPC) is being considered for the central charged particle tracker for the detector for the proposed International Linear Collider (ILC). To meet the ILC-TPC spatial resolution challenge of ~100 microns with a manageable number of readout pads and channels of electronics, Micro Pattern Gas Detectors (MPGD) are being developed which could use pads comparable in width to the proportional-wire/cathode-pad TPC. We have built a prototype GEM readout TPC with 2 mm x 6 mm pads using the new concept of charge dispersion in MPGDs with a resistive anode. The dependence of transverse resolution on the drift distance has been measured for small angle tracks in cosmic ray tests without a magnetic field for Ar/CO2 (90:10). The GEM-TPC resolution with charge dispersion readout is significantly better than previous measurements carried out with conventional direct charge readout techniques.
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"abstract": "A large volume Time Projection Chamber (TPC) is being considered for the\ncentral charged particle tracker for the detector for the proposed\nInternational Linear Collider (ILC). To meet the ILC-TPC spatial resolution\nchallenge of ~100 microns with a manageable number of readout pads and channels\nof electronics, Micro Pattern Gas Detectors (MPGD) are being developed which\ncould use pads comparable in width to the proportional-wire/cathode-pad TPC. We\nhave built a prototype GEM readout TPC with 2 mm x 6 mm pads using the new\nconcept of charge dispersion in MPGDs with a resistive anode. The dependence of\ntransverse resolution on the drift distance has been measured for small angle\ntracks in cosmic ray tests without a magnetic field for Ar/CO2 (90:10). The\nGEM-TPC resolution with charge dispersion readout is significantly better than\nprevious measurements carried out with conventional direct charge readout\ntechniques.",
"arxiv_id": "physics/0610232",
"authors": [
"K. Boudjemline",
"M. S. Dixit",
"J. -P. Martin",
"K. Sachs"
],
"categories": [
"physics.ins-det"
],
"doi": "10.1016/j.nima.2007.01.017",
"journal_ref": "Nucl.Instrum.Meth.A574:22-27,2007",
"title": "Spatial resolution of a GEM readout TPC using the charge dispersion signal",
"url": "https://arxiv.org/abs/physics/0610232"
},
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