Flat Field Response Of The Microchannel Plate Detectors Used On The Extreme Ultraviolet Explorer

J. V. Vallerga; J. L. Gibson; O. H. W. Siegmund; P. W. Vedder

doi:10.1117/12.962596

27 November 1989 Flat Field Response Of The Microchannel Plate Detectors Used On The Extreme Ultraviolet Explorer

J. V. Vallerga, J. L. Gibson, O. H. W. Siegmund, P. W. Vedder

Proceedings Volume 1159, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy and Atomic Physics; (1989) https://doi.org/10.1117/12.962596
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

We present the results of the extreme ultraviolet (EUV) flat field calibrations of two of the flight detectors to be flown on the Extreme Ultraviolet Explorer Satellite (EUVE). Images of ~40 million detected events binned 512 by 512 are sufficient to show MCP fixed pattern noise such as hexagonal microchannel multifiber bundle interfaces, "dead" spots, edge distortion, and differential nonlinearity. Differences due to photocathode material and dependencies on EUV wavelength are also described. Over large spatial scales the detector response is flat to better than 10% of the mean response but at spatial scales less than 1 mm the variations from the mean can be as large as 20%.

Citation Download Citation

J. V. Vallerga, J. L. Gibson, O. H. W. Siegmund, and P. W. Vedder "Flat Field Response Of The Microchannel Plate Detectors Used On The Extreme Ultraviolet Explorer", Proc. SPIE 1159, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy and Atomic Physics, (27 November 1989); https://doi.org/10.1117/12.962596

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