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  • Small-pad resistive Microme...
    Alviggi, M.; Canale, V.; Della Pietra, M.; Di Donato, C.; Farina, E.; Franchino, S.; Iengo, P.; Iodice, M.; Longo, L.; Petrucci, F.; Rossi, E.; Salamanna, G.; Sekhniaidze, G.; Sidiropoulou, O.

    Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 08/2019, Letnik: 936
    Journal Article

    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.