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

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

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2280...46s&link_type=abstract

Proc. SPIE Vol. 2280, p. 46-56, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V, Oswald H. Siegmund; John V. Vallerga;

Astronomy and Astrophysics

Astronomy

2

Scientific paper

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 10(superscript 7) 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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