First results for SD2000 position-sensitive photon-counting MCP-based detector

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

doi:10.1117/12.450053

10 December 2001 First results for SD2000 position-sensitive photon-counting MCP-based detector

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

Author Affiliations +

Proceedings Volume 4498, UV/EUV and Visible Space Instrumentation for Astronomy and Solar Physics; (2001) https://doi.org/10.1117/12.450053
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

SD2000 is a new photon counting MCP based detector. It consists of a single MCP, coated with a suitable photocathode, closely coupled to a Silicon Drift Detector (SDD). The electron clouds generated by the MCP channels are accelerated by a strong electric field applied and proximity focussed on the SDD, that works as a position sensitive read-out detector. The SDD, developed by the INFN laboratories in Trieste, is a butterfly Silicon Drift Detector with no metal deposition on its cathodes. The absence of metallization in the sensitive zone of the chamber allows the electron clouds to penetrate uniformly into the active region of the detector and to be revealed. A suitable front-end amplifier, that works as a charge preamplifier and a bipolar shaper, has been developed starting from SPICE simulations and tested. A proto-type of the detector has been realized and tested and the first results have been achieved and compared with the expected best performances of the detector.

Citation Download Citation

Marzio Vidali, Valter Bonvicini, Andrea Bucconi, Anna Gregorio, Alessandro Monfardini, Claudio Piemonte, Alexander Rashevsky, Roberto Stalio, Paolo Trampus, and Andrea Vacchi "First results for SD2000 position-sensitive photon-counting MCP-based detector", Proc. SPIE 4498, UV/EUV and Visible Space Instrumentation for Astronomy and Solar Physics, (10 December 2001); https://doi.org/10.1117/12.450053

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KEYWORDS

Sensors

Microchannel plates

Photodetectors

Clouds

Silicon

Aerospace engineering

Astronomy

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