First in-beam studies of a Resistive-Plate WELL gaseous multiplier

Shikma Bressler, Luca Moleri, Michael Pitt, S. Kudella, C. D. R. Azevedo, Fernando Domingues Amaro, M.R. Jorge, Joaquim Marques Ferreira dos Santos, Joao Filipe Calapez de Albuquerque Veloso, Hugo Natal da Luz, Lior Arazi, E. Olivierie, Amos Breskin, E. Olivieri

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

We present the results of the first in-beam studies of a medium size (10 x 10 cm2) Resistive-Plate WELL (RPWELL): a single-sided THGEM coupled to a pad anode through a resistive layer of high bulk resistivity (similar to 109 Ωcm). The 6.2 mm thick (excluding readout electronics) single-stage detector was studied with 150 GeV muons and pions. Signals were recorded from 1 x 1 cm2 square copper pads with APV25-SRS readout electronics. The single-element detector was operated in Ne/(5%CH4) at a gas gain of a few times 104, reaching 99% detection efficiency at average pad multiplicity of ∼ 1.2. Operation at particle fluxes up to similar to 104 Hz/cm2 resulted in ∼ 23% gain drop leading to similar to 5% efficiency loss. The striking feature was the discharge-free operation, also in intense pion beams. These results pave the way towards robust, efficient large-scale detectors for applications requiring economic solutions at moderate spatial and energy resolutions.
שפה מקוריתאנגלית
מספר המאמרP01005
כתב עתJournal of Instrumentation
כרך11
מספר גיליון1
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 12 ינו׳ 2016

ASJC Scopus subject areas

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