Development of an X-band magnicon amplifier for the next linear collider - cold cathode experiments and a thermionic design study

S. H. Gold, B. Hafizi, A. W. Fliflet, A. K. Kinkead

Research output: Contribution to journalConference articlepeer-review

Abstract

The Naval Research Laboratory has been studying the operation of an 11 GHz frequency-doubling magnicon amplifier driven by a approx. 650 kV, 225 A, 5.5-mm-diam. electron beam produced by a velvet cathode driven by a single-shot Marx generator. Based on recent experimental results, it became evident that the NRL program must transition to a thermionic electron gun, a rep-rated modulator (to allow rf conditioning), and an ultrahigh vacuum environment (to suppress the intracavity plasma generation) in order to demonstrate the feasibility of an efficient, long-pulse, high-duty-factor magnicon amplifier at 11.4 GHz for linear accelerator applications. The authors have designed a new thermionic magnicon experiment, incorporating an advanced high-convergence electron gun to produce a 500 kV, 200 A, 2-mm-diam electron beam, an improved deflection cavity design, and an improved output cavity that employs side-coupling to extract the rf power through a pair of X-band waveguides separated by 135° around the azimuth of the cavity without destroying the symmetry of the rotating quadrupole mode. The predicted efficiency is approx. 60%.

Original languageEnglish (US)
Number of pages1
JournalIEEE International Conference on Plasma Science
StatePublished - Jan 1 1996
Externally publishedYes
EventProceedings of the 1996 IEEE International Conference on Plasma Science - Boston, MA, USA
Duration: Jun 3 1996Jun 5 1996

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Development of an X-band magnicon amplifier for the next linear collider - cold cathode experiments and a thermionic design study'. Together they form a unique fingerprint.

Cite this