Imaging properties of a delay line readout using large microchannel plates

Journal Article · Mon Apr 01 04:00:00 EST 1991 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.289290· OSTI ID:5112547

Shepherd, J A; Sobottka, E; Williams, M B ^[1]

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1. Virginia Univ., Charlottesville, VA (United States). Dept. of Physics

This paper reports on the modal gain that varied over the surface of the microchannel plates (MCPs) by as much as a factor of three, both before and after extensive UV scrubbing. Attempts to decrease the variations in gain by further full flood scrubbing, and by spot scrubbing the high gain areas, were unsuccessful, the fwhm of the charge distributions were 100% before the scrubbing, and improved to 45% afterwards. Characteristic deviations from spatial linearity for the delay line anode are presented. For positions within a diameter of 120 mm, the deviations form linearity were less than {plus minus}150 {mu}m. For MCP gains greater than 3 {times} 10{sup 6}, the fwhm spatial resolution was measured. The resolution at the center of the MCPs was 54 {mu}m, while at the edge (57 mm from the center) it was 64 {mu}m.

• OSTI ID: 5112547
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 38:2; ISSN 0018-9499; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

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440200 -- Radiation Effects on Instrument Components
Instruments
or Electronic Systems
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFICATION
ANODES
CHARGE DISTRIBUTION
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON MULTIPLIER DETECTORS
GAIN
IMAGE INTENSIFIERS
MEASURING INSTRUMENTS
PLATES
RADIATION DETECTORS
RADIATION EFFECTS
RADIATIONS
READOUT SYSTEMS
RESOLUTION
SPATIAL RESOLUTION
ULTRAVIOLET RADIATION