Evaluation of an imaging phototube using microchannel plates with delay line readout

Journal Article · Sun Mar 31 23:00:00 EST 1991 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.289289· OSTI ID:5044526

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

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

An imaging phototube using a bialkali photocarthode, 40 mm microchannel plates (MCPs), and a crossed delay line readout has been constructed. The photocathode is found to exhibit good sensitivity, however overall detection efficiency is lowered by the MCP ion film barrier. The MCP gain characteristics are evaluated over the sensitive area, and the reduction of gain at high count rate is measured. This paper describes several overall detector characteristics, including dark count, spatial resolution, and geometric linearity.

• OSTI ID: 5044526
• 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

440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFICATION
CATHODES
COUNTING RATES
EFFICIENCY
ELECTRODES
ELECTRON MULTIPLIER DETECTORS
GAIN
MEASURING INSTRUMENTS
PHOTOCATHODES
PHOTOTUBES
RADIATION DETECTORS
READOUT SYSTEMS
RESOLUTION
SENSITIVITY
SPATIAL RESOLUTION