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Design and performance of the LAMPF 1-1/4 MW klystron modulator

Conference ·
OSTI ID:4419181
From 11th modulator symposium; New York, New York, USA (18 Sep 1973). A design for a very reliable single-triode modulator for a 11/4 MW modulating-anode klystron is presented. The operating voltage is 86 kV and the variable pulse length ranges from 200 4mmsec to 1.2 msec. The basic modulator circuit, which uses a novel Zener diode bias circuit, and several of the individual components are described in detail. Over 140,000 high-voltage hours have been accumulated on these modulators. The principal failure mechanism is grid emission from the triode. These failures can be anticipated and repaired during a normal maintenance period. The triode is then reprocessed and reused. Tube life data and a summary of the failures modes are presented. (auth)
Research Organization:
Los Alamos Scientific Lab., N.Mex. (USA)
DOE Contract Number:
W-7405-ENG-36
NSA Number:
NSA-29-003163
OSTI ID:
4419181
Report Number(s):
LA-UR--73-1320; CONF-730951--1
Country of Publication:
United States
Language:
English

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