Aging and rate effects of the Multigap RPC studied at the Gamma Irradiation Facility at CERN

The selected device for the ALICE Time-of-Flight array is the Multigap Resistive Plate Chamber (MRPC). Previously we have tested this device at the Gamma Irradiation Facility (GIF) at CERN to evaluate the rate dependence; we have now performed additional tests using the final design of the MRPC and...

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Detalles Bibliográficos
Autores principales: Alici, A, Cara Romeo, G, Kim, J, Hatzifotiadou, D, Sun, Y, Valenti, G, Williams, M C S, Yakorev, D, Zichichi, A
Lenguaje:eng
Publicado: 2007
Materias:
Detectors and Experimental Techniques
Health Physics and Radiation Effects
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2007.06.027
http://cds.cern.ch/record/1064925
Descripción
Sumario:The selected device for the ALICE Time-of-Flight array is the Multigap Resistive Plate Chamber (MRPC). Previously we have tested this device at the Gamma Irradiation Facility (GIF) at CERN to evaluate the rate dependence; we have now performed additional tests using the final design of the MRPC and with a gas mixture free of hydrocarbons. We have measured the performance of the MRPC up to an equivalent flux of minimum ionizing muons of 2.5 kHz/cm2. We also present results from an aging test obtained by exposing two MRPC strips to the GIF source for a period of six months.

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