Speaker
Dr
Shikma Bressler
(Weizmann Institute of Science)
Description
The RPWELL detector is a single-sided THGEM (copper clad on one side only) coupled to the readout electrode through a sheet of large bulk resistivity. Former laboratory and accelerator studies, performed in Ne/CH4(5%), have demonstrated its large dynamic range (from single electrons to thousand times MIPS), high gains (> 106), and high detection efficiency over a broad particle-flux range. The RPWELL operation under these conditions was stable, with no observable discharges.
In this work we will present the results of recent studies of these robust single-stage RPWELL detectors. We will compare their performance with Ar-based gas mixtures to that with Ne/CH4(5%) - making the RPWELL an attractive imaging detector for large-area applications in particle physics, astro-particle physics and homeland security. We will discuss the preliminary performance of RPWELL-based UV-photon detectors, with CsI-coated electrodes; among potential benefits for this application are the high sensitivity to single photoelectrons and large dynamic range (discharge-free operation under highly ionizing background).
Primary authors
Mr
Luca Moleri
(Weizmann Institute of Science)
Dr
Shikma Bressler
(Weizmann Institute of Science)
Co-authors
Prof.
Amos Breskin
(Weizmann Institute of Science)
Mr
Dan Shaked-Renous
(Weizmann Institute of Science)
Dr
Jana Schaarschmidt
(Weizmann Institute of Science)
Dr
Lior Arazi
(Weizmann Institute of Science)
