Characteristics of square pore and low noise microchannel plate stacks

Details Characteristics of square pore and low noise microchannel plate stacks Characteristics of square pore and low noise microchannel plate stacks

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1743..274s&link_type=abstract

In: EUV, X-ray, and gamma-ray instrumentation for astronomy III; Proceedings of the Meeting, San Diego, CA, July 22-24, 1992 (A9

Astronomy and Astrophysics

Astronomy

Aspect Ratio, Low Noise, Microchannel Plates, Porous Materials, Quantum Efficiency, Scanning Electron Microscopy

Scientific paper

An evaluation is conducted of several square-pore microchannel plates (MCPs) with either 25- or 85-micron diameter pores and 80:1 or 50:1 channel length/diameter ratio. Flat field measurements show that the 25-micron-pored MCPs, unlike those with 85-micron pores, exhibit periodic modulation; this may be due to the MCP stacking configurations. Attention is given to the relative quantum detection efficiency advantages of the two MCPs.

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