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Conductivity and charge depletion aging of resistive electrodes for high rate RPCs

AuthorsMorales, Miguel; Pecharromán, Carlos ; Mata-Osoro, G. ; Díaz, Luis A. ; Garzón, Juan Antonio
KeywordsMaterials for gaseous detectors
Resistive-plate chambers
Charge transport and multiplication in solid media
Charge induction
Issue Date29-Jan-2013
PublisherInstitute of Physics Publishing
CitationJournal of Instrumentation 8: P01022 (2013)
AbstractDevelopment of new electrodes is a key element for the improvement of high rate Resistive Plate Chambers (RPC). In the particular case of resistive electrodes, the fabrication of these elements is a challenging problem from a material science point of view. The combination of resistivity, permittivity and stability requirements is really hard to satisfy for any known material. Only a few materials have been found to be suitable for fabrication of resistive plates. In this work, we have carried out electrical characterizations of some of the materials that are currently used in RPCs or are solid candidates to be used as resistive plates in high rate RPCs. As a result, we have found strong evidences that ion conduction processes under moderate to high electric fields are able to drift high amounts of charge which allow to understand the degradation nature of the involved processes.
DescriptionTrabajo presentado al 11th Workshop on Resistive Plate Chambers and Related Detectors (RPC2012).
Publisher version (URL)http://dx.doi.org/10.1088/1748-0221/8/01/P01022
Appears in Collections:(ICMM) Artículos
(CINN) Artículos
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