Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1743..315b&link_type=abstract
In: EUV, X-ray, and gamma-ray instrumentation for astronomy III; Proceedings of the Meeting, San Diego, CA, July 22-24, 1992 (A9
Astronomy and Astrophysics
Astronomy
2
Analog To Digital Converters, Electron Clouds, Microchannel Plates, Position (Location), Pulse Amplitude, Readout, Aluminum, Anodes, Copper, Crosstalk, Electrode Materials, Electromagnetic Noise, Line Spectra, Quartz, Size (Dimensions)
Scientific paper
Microchannel plate (MCP) detectors are often used with charge division anode readouts, such as the spiral-anode (SPAN) anode, to provide high position resolution. This paper discusses the effect on image quality, of digitization (causing fixed patterning), electronic noise, pulse height distribution (PHD) and charge cloud size. The discussion is supported by experimental data obtained from a 1D SPAN anode. Results from a computer model of this detector, and from a charge cloud simulation model, are also included. The SPAN anode normally has three sinusoidal electrodes with phase differences of 120 deg. An alternative configuration is to use a phase difference of 90 deg. This paper compares the advantages and disadvantages of these arrangements.
Breeveld Alice A.
Edgar Michael L.
Lapington Jon S.
Smith Alan
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