Small-pad resistive micromegas for high rate environment: performance of different resistive protection concepts
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 la...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 2019
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| In: |
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2018, Volume: 936, Pages: 408-411 |
| ISSN: | 1872-9576 |
| DOI: | 10.1016/j.nima.2018.10.052 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1016/j.nima.2018.10.052 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0168900218313676 
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| Author Notes: | 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 |
| Summary: | 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. |
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| Item Description: | Available online 19 October 2018 Gesehen am 09.07.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1872-9576 |
| DOI: | 10.1016/j.nima.2018.10.052 |