We present the development of resistive Micromegas with small pad readout aiming at precision tracking without efficiency loss up to several MHz/cm[Formula presented]. 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) mm[Formula presented]. The active surface is (48 × 48) mm[Formula presented] 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. © 2018 Elsevier B.V.
Small-pad resistive Micromegas for high rate environment: Performance of different resistive protection concepts / Alviggi, Mariagrazia; Canale, Vincenzo; Della Pietra, Massimo; Di Donato, Camilla; Farina, Edoardo; Franchino, Silvia; Iengo, Paolo; Iodice, Mauro; Longo, Luigi; Petrucci, Fabrizio; Rossi, Eleonora; Salamanna, Giuseppe; Sekhniaidze, Givi; Sidiropoulou, Ourania. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 936:(2019), pp. 408-411. [10.1016/j.nima.2018.10.052]
Small-pad resistive Micromegas for high rate environment: Performance of different resistive protection concepts
Alviggi, MariaGrazia;Canale, Vincenzo;Della Pietra, Massimo;
2019
Abstract
We present the development of resistive Micromegas with small pad readout aiming at precision tracking without efficiency loss up to several MHz/cm[Formula presented]. 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) mm[Formula presented]. The active surface is (48 × 48) mm[Formula presented] 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. © 2018 Elsevier B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
