Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
64 (1993), S. 430-435
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Measurements of the modal gain of two high-gain curved-channel microchannel plates (MCPs) at various operating temperatures are presented. Both MCPs were fabricated from Galileo Electro-Optics Corporation Long LifeTM glass with 12-μm diam channels on 15-μm centers. The modal gain was found to decrease with increasing temperature at a rate of −0.1% (°C)−1. This reduction of gain with temperature is attributed primarily to an axial temperature gradient along each MCP channel creating a nonuniform electric field within the channel that lowers the effective output gain. A lowering of the secondary electron yield resulting from increased phonon scattering of secondary electrons released within the walls of the MCP channels was also assessed, but was found to have a negligible contribution to the drop in gain with temperature.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1144212
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