Advanced, two-dimensional, high-resolution microchannel plate detector for sounding rocket experiments

Scott P. Sarlin; Oswald H. W. Siegmund; James C. Green

doi:10.1117/12.186836

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16 September 1994 Advanced, two-dimensional, high-resolution microchannel plate detector for sounding rocket experiments

Scott P. Sarlin, Oswald H. W. Siegmund, James C. Green

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Proceedings Volume 2280, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V; (1994) https://doi.org/10.1117/12.186836
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We discuss a very high resolution imaging microchannel plate (MCP) detector developed for use in a high resolution ((lambda) /(Delta) (lambda) equals30,000) ultraviolet spectrograph which will fly aboard a NASA sounding rocket. The detector utilizes hybrid anode, referred to as a double delay line, which encodes x-axis position from time delay measurements and y-axis position by charge division. The detector uses low resistance MCP's in a z-stack arrangement to achieve high local count rates and a gain of 2 X 10⁷ electrons per incident photon. The detector has a resolution of 20 micrometers FWHM throughout a 6x1 cm active area. The use of a KBr photocathode and a repeller grid boosts the quantum efficiency of the bare MCP's to over 40% at approximately equals 1100 angstroms.

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Scott P. Sarlin, Oswald H. W. Siegmund, and James C. Green "Advanced, two-dimensional, high-resolution microchannel plate detector for sounding rocket experiments", Proc. SPIE 2280, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V, (16 September 1994); https://doi.org/10.1117/12.186836

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