Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4139...43b&link_type=abstract
Proc. SPIE Vol. 4139, p. 43-50, Instrumentation for UV/EUV Astronomy and Solar Missions, Silvano Fineschi; Clarence M. Korendyke
Astronomy and Astrophysics
Astronomy
Scientific paper
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.
Bonvicini Valter
Bucconi Andrea
Gregorio Anna
Monfardini Alessandro
Piemonte Claudio
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