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High speed electrostatic photomultiplier tube for the 1.06 micrometer wavelength. Cup and slat dynode chain combined with flat cathode and coax output produces 0.25 nsec rise timeThe Varian cup and slat dynode chain was modified to have a flat cathode. These modifications were incorporated in an all-electrostatic photomultiplier tube having a rise time of 0.25 n sec. The tube delivered under the contract had a flat S-20 opaque cathode with a useful diameter of 5 mm. The design of the tube is such that a III to V cathode support is mounted in place of the existing cathode substrate. This cathode support is designed to accept a transferred III to V cathode and maintain the cathode surface in the same position as the S-20 photocathode.
Document ID
19770015446
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Sparks, S. D. (Varian Associates Palo Alto, CA, United States)
Date Acquired
September 3, 2013
Publication Date
April 18, 1973
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
NASA-CR-152494
Accession Number
77N22390
Funding Number(s)
CONTRACT_GRANT: NAS5-23110
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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