X-ray tests of double and tripple GEM detectors for the LHCb inner tracker

98-068 Abstract Gas gain and operation stability of the detectors based on the Double and Triple-GEM (Gas Electron Multiplier) structures were studied with the X-rays. The tested detectors had the sensitive area of 100 cm2. To stimulate discharges in the detectors, a gaseous (-source was introduced...

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Detalles Bibliográficos
Autores principales: Kashchuk, A, Poliakov, V, Vorobyov, A
Lenguaje:eng
Publicado: 1998
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/684669
Descripción
Sumario:98-068 Abstract Gas gain and operation stability of the detectors based on the Double and Triple-GEM (Gas Electron Multiplier) structures were studied with the X-rays. The tested detectors had the sensitive area of 100 cm2. To stimulate discharges in the detectors, a gaseous (-source was introduced into the gas mixture. The measurements show that the Double-GEM chamber filled with the Ar(70%)+CO2(30%) gas mixture was operating without discharges up to the effective gas gain of 1(104, while the Triple-GEM chamber could operate up to the gain of 4(104.

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