SD2000: a new MCP-based UV detector

Valter Bonvicini; Andrea Bucconi; Anna Gregorio; Alessandro Monfardini; Claudio Piemonte; Alexander Rashevsky; Roberto Stalio; Paolo Trampus; Andrea Vacchi; Marzio Vidali

doi:10.1117/12.410544

18 December 2000 SD2000: a new MCP-based UV detector

Valter Bonvicini, Andrea Bucconi, Anna Gregorio, Alessandro Monfardini, Claudio Piemonte, Alexander Rashevsky, Roberto Stalio, Paolo Trampus, Andrea Vacchi, Marzio Vidali

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Proceedings Volume 4139, Instrumentation for UV/EUV Astronomy and Solar Missions; (2000) https://doi.org/10.1117/12.410544
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A new photon counting detector for UV Astronomy is presented. The SD2000 detector consists of a single MCP, coated with a suitable photocathode, closely coupled to a Silicon Drift Detector (SDD). A good spatial resolution, of the order of 20 micrometer in both directions, can be achieved with a relatively small number of readout channels (10 divided by 100). The maximum allowable rate, proportional to the drift length, is about 10⁵ Hz for a 20 mm length focal plane. A new type of SDD, without metal deposition on the cathodes, has been developed and tested for this particular application. A single MCP has been coupled also to a metal anode and a silicon diode in order to characterize it and study the interaction between the incoming (low-energy) electron cloud and a silicon p-n junction similar to those present in the drift chamber.

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Valter Bonvicini, Andrea Bucconi, Anna Gregorio, Alessandro Monfardini, Claudio Piemonte, Alexander Rashevsky, Roberto Stalio, Paolo Trampus, Andrea Vacchi, and Marzio Vidali "SD2000: a new MCP-based UV detector", Proc. SPIE 4139, Instrumentation for UV/EUV Astronomy and Solar Missions, (18 December 2000); https://doi.org/10.1117/12.410544

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KEYWORDS

Microchannel plates

Sensors

Silicon

Diodes

Metals

Clouds

Lamps

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