2021/06/30 by M. Kuźniak, D. González-Díaz, P. Amedo +17 · 2 voices · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle Detector Development and Performance #astro-ph.IM #hep-ex #nucl-ex #physics.ins-det
paper · pdf · doi:10.1140/epjc/s10052-021-09316-0
published as Eur. Phys. J. C 81, 609 (2021) · accepted for publication in Eur. Phys. J. C
openalex created_date 2021/06/22 · openalex publication_date 2021/07/01 · arxiv created 2022/03/15 · arxiv updated 2022/03/17 · openalex updated_date 2026/08/01
A new concept for the simultaneous detection of primary and secondary scintillation in time projection chambers is proposed. Its core element is a type of very-thick GEM structure supplied with transparent electrodes and machined from a polyethylene naphthalate plate, a natural wavelength-shifter. Such a device has good prospects for scalability and, by virtue of its genuine optical properties, it can improve on the light collection efficiency, energy threshold and resolution of conventional micropattern gas detectors. This, together with the intrinsic radiopurity of its constituting elements, offers advantages for noble gas and liquid based time projection chambers, used for dark matter searches and neutrino experiments. Production, optical and electrical characterization, and first measurements performed with the new device are reported.