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

Journal Article · Mon Apr 01 00:00:00 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), Vol. 38:2; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

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