High space resolution µ-RWELL for high rate applications

The µ-RWELL is a single-amplification stage resisitive MPGD. The amplification element, realized on a polyimide foil micro-patterned with a high density blind-holes (wells), is embedded through a thin resistive film, in the readout PCB. The introduction of the resistive layer affects the charge spre...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-04, Vol.1498 (1), p.12003
Main Authors: Bencivenni, G., Felici, G., Gatta, M., Giovannetti, M., Morello, G., Poli Lener, M., de Oliveira, R., Ochi, A., Tskhadadze, E.
Format: Article
Language:English
Subjects:
Amplification
Foils
Layouts
Physics
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Summary:The µ-RWELL is a single-amplification stage resisitive MPGD. The amplification element, realized on a polyimide foil micro-patterned with a high density blind-holes (wells), is embedded through a thin resistive film, in the readout PCB. The introduction of the resistive layer affects the charge spread on the readout electrodes and suppresses the transition from streamer to spark giving the possibility to achieve large gains (>104). As a drawback the capability to stand high particle fluxes is reduced. In order to get rid of such a limitation different resistive layouts with prompt current evacuation schemes have been designed. In this work we present the study of the performance of the high rate layouts done at PSI, together with the measurement of the space resolution for orthogonal and inclined tracks performed at CERN.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1498/1/012003