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Proceedings Paper

MCP characterization at the Cu and Mo K-alpha x-ray energies
Author(s): Peter J. Walsh; Scott C. Evans; Gottfried T. Schappert; George A. Kyrala
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Paper Abstract

We are investigating the usefulness of microchannel plate (MCP) intensifiers for imaging x-rays at high photon energies, specifically by using filtered x-rays from an electron bombardment source to generate the K(alpha ) lines of Cu at 8.04 KeV and Mo at 17.5 KeV. These high energy lines are used to measure the resolution of an MCP based intensifier produced at Los Alamos National Laboratory. We have investigated the spot size of a fielded MCP intensifier by observing, on film, the result of a single photon excitation of microchannels. Measurement of the spot size was done with visible light microscopy. We report initial results of spot size spread in the stripline direction. We have also begun a preliminary measurement of the azimuthal anisotropy in the spatial resolution, accentuated at these energies by the inclination of the axis of the MCP channels. We concentrate on an actual 'fielded instrument' resolution, rather than ideal, for the purpose of analyzing image data captured at the NOVA Laser Facility.

Paper Details

Date Published: 12 December 1997
PDF: 7 pages
Proc. SPIE 3173, Ultrahigh- and High-Speed Photography and Image-based Motion Measurement, (12 December 1997); doi: 10.1117/12.294532
Show Author Affiliations
Peter J. Walsh, Los Alamos National Lab. (United States)
Scott C. Evans, Los Alamos National Lab. (United States)
Gottfried T. Schappert, Los Alamos National Lab. (United States)
George A. Kyrala, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 3173:
Ultrahigh- and High-Speed Photography and Image-based Motion Measurement
C. Bruce Johnson; Andrew Davidhazy; James S. Walton; Takeharu Goji Etoh; C. Bruce Johnson; Donald R. Snyder; James S. Walton, Editor(s)

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