Small-pad resistive micromegas for high rate environment

• Verfasst von: Alviggi, Mariagrazia [VerfasserIn]
• Verfasst von: Franchino, Silvia [VerfasserIn]
• Titel: Small-pad resistive micromegas for high rate environment
• Titelzusatz: performance of different resistive protection concepts
• Verf.angabe: M. Alviggi, V. Canale, M. Della Pietra, C. Di Donato, E. Farina, S. Franchino, P. Iengo, M. Iodice, L. Longo, F. Petrucci, E. Rossi, G. Salamanna, G. Sekhniaidze, O. Sidiropoulou
• E-Jahr: 2019
• Jahr: August 2019
• Jahr des Originals: 2018
• Umfang: 4 S.
• Fussnoten: Available online 19 October 2018 ; Gesehen am 09.07.2019
• Titel Quelle: Enthalten in: Nuclear instruments & methods in physics research / A
• Ort Quelle: Amsterdam : North-Holland Publ. Co., 1984
• Jahr Quelle: 2019
• Band/Heft Quelle: 936(2019), Seite 408-411
• ISSN Quelle: 1872-9576
• DOI: doi:10.1016/j.nima.2018.10.052
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Gas detectors
• Sach-SW: Micro-pattern gas detectors
• Sach-SW: Micromegas
• Sach-SW: Tracking detectors
• K10plus-PPN: 1668863189

Abstract

We present the development of resistive Micromegas with small pad readout aiming at precision tracking without efficiency loss up to several MHz/cm2. Several prototypes have been built with the spark protection resistive layer deposited with different techniques: a pad-patterned embedded resistor layout with screen printing, and a uniform layer by sputtering (Diamond Like Carbon structure). All detectors consist of a matrix of 48 × 16 rectangular shaped pads with a pitch of (1 × 3) mm2. The active surface is (48 × 48) mm2 with a total number of 768 channels, routed off-detector for readout. Characterization and performance studies of all prototypes have been carried out by means of radioactive sources, X-rays, cosmic rays and high energy particle beams. A comparison of prototypes with different resistivity layout will be presented.