High resolution, two-dimensional imaging, microchannel plate detector for use on a sounding rocket experiment

Details High resolution, two-dimensional imaging, microchannel plate detector for use on a sounding rocket experiment High resolution, two-dimensional imaging, microchannel plate detector for use on a sounding rocket experiment

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1549..290b&link_type=abstract

In: EUV, X-ray, and gamma-ray instrumentation for astronomy II; Proceedings of the Meeting, San Diego, CA, July 24-26, 1991 (A93

Computer Science

Sound

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Doppler Effect, Imaging Techniques, Lyman Alpha Radiation, Microchannel Plates, Radiation Detectors, Sounding Rockets, Emission Spectra, High Resolution, Interplanetary Medium, Jupiter Atmosphere, Line Spectra

Scientific paper

We discuss a high resolution microchannel plate (MCP) imaging detector to be used in measurements of Doppler-shifted hydrogen Lyman-alpha line emission from Jupiter and the interplanetary medium. The detector is housed in a vacuum-tight stainless steel cylinder (to provide shielding from magnetic fields) with a MgF2 window. Operating at nominal voltage, the four plate configuration provides a gain of 1.2 x 10 exp 7 electrons per incident photon. The wedge-and-strip anode has two-dimensional imaging capabilities, with a resolution of 40 microns FWHM over a one centimeter diameter area. The detector has a high quantum efficiency while retaining a low background rate. A KBr photocathode is used to enhance the quantum efficiency of the bare MCPs to a value of 35 percent at Lyman-alpha.

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