Ion feedback suppression in Time Projection Chambers

A controlled-voltage Gas Electron Multiplier (GEM) can be used to block the re-injection of positive ions in large volume Time Projection Chambers. With proper choice of geometry, gas filling and external fields, good electron transmission can be obtained at very low GEM voltages; pulsed ion gating...

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Detalles Bibliográficos
Autores principales: Sauli, Fabio, Ropelewski, Leszek, Everaerts, P
Lenguaje:eng
Publicado: 2005
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2005.12.239
http://cds.cern.ch/record/921935
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author Sauli, Fabio
Ropelewski, Leszek
Everaerts, P
author_facet Sauli, Fabio
Ropelewski, Leszek
Everaerts, P
author_sort Sauli, Fabio
collection CERN
description A controlled-voltage Gas Electron Multiplier (GEM) can be used to block the re-injection of positive ions in large volume Time Projection Chambers. With proper choice of geometry, gas filling and external fields, good electron transmission can be obtained at very low GEM voltages; pulsed ion gating is then much easier than with conventional wire grids, requiring hundreds of volts. Gating schemes suited for the TPC detector planned for the International Linear Collider detector are described. The possibility of GEM-based DC-operated ion filters, exploiting the difference in diffusion properties of ions and electrons, is also discussed.
id cern-921935
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-9219352019-09-30T06:29:59Zdoi:10.1016/j.nima.2005.12.239http://cds.cern.ch/record/921935engSauli, FabioRopelewski, LeszekEveraerts, PIon feedback suppression in Time Projection ChambersDetectors and Experimental TechniquesA controlled-voltage Gas Electron Multiplier (GEM) can be used to block the re-injection of positive ions in large volume Time Projection Chambers. With proper choice of geometry, gas filling and external fields, good electron transmission can be obtained at very low GEM voltages; pulsed ion gating is then much easier than with conventional wire grids, requiring hundreds of volts. Gating schemes suited for the TPC detector planned for the International Linear Collider detector are described. The possibility of GEM-based DC-operated ion filters, exploiting the difference in diffusion properties of ions and electrons, is also discussed.CERN-PH-EP-2005-056oai:cds.cern.ch:9219352005-12-08
spellingShingle Detectors and Experimental Techniques
Sauli, Fabio
Ropelewski, Leszek
Everaerts, P
Ion feedback suppression in Time Projection Chambers
title Ion feedback suppression in Time Projection Chambers
title_full Ion feedback suppression in Time Projection Chambers
title_fullStr Ion feedback suppression in Time Projection Chambers
title_full_unstemmed Ion feedback suppression in Time Projection Chambers
title_short Ion feedback suppression in Time Projection Chambers
title_sort ion feedback suppression in time projection chambers
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2005.12.239
http://cds.cern.ch/record/921935
work_keys_str_mv AT saulifabio ionfeedbacksuppressionintimeprojectionchambers
AT ropelewskileszek ionfeedbacksuppressionintimeprojectionchambers
AT everaertsp ionfeedbacksuppressionintimeprojectionchambers

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