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Proceedings Paper

Pulse shortening in the magnetically insulated line oscillator (MILO)
Author(s): Forrest Jack Agee; Steve E. Calico; Kyle J. Hendricks; Michael D. Haworth; Thomas A. Spencer; Dale R. Ralph; Earl Blankenship; M. Collins Clark; Raymond W. Lemke
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Paper Abstract

The Magnetically Insulated Line Oscillator (MILO) is a cross field tube that has been studied analytically and experimentally by researchers in several laboratories. The tube is remarkable in that it requires no externally imposed magnetic field, but rather it can be designed to provide a sufficient self field in the relativistic electron beam to guide the electrons. The MILO can be made to operate at high power in the power range above 100 MW. It has been observed that the tube experiences a diminution in pulse width when operated at successively higher powers. This phenomenon, called variously pulse shortening or pulse tearing is also observed in conventional tubes designed for lower power. The process of conditioning commercial tubes is a costly part of the production of high power tubes for applications including particle accelerators. In the case of high power microwave tubes operating in excess of 100 MW, it presents a limitation on the energy that can be extracted from these tubes. This paper describes work performed at the Phillips Laboratory on a relatively high power MILO and discusses the phenomena that may account for this behavior.

Paper Details

Date Published: 28 October 1996
PDF: 9 pages
Proc. SPIE 2843, Intense Microwave Pulses IV, (28 October 1996); doi: 10.1117/12.255405
Show Author Affiliations
Forrest Jack Agee, Air Force Phillips Lab. (United States)
Steve E. Calico, Air Force Phillips Lab. (United States)
Kyle J. Hendricks, Air Force Phillips Lab. (United States)
Michael D. Haworth, Air Force Phillips Lab. (United States)
Thomas A. Spencer, Air Force Phillips Lab. (United States)
Dale R. Ralph, Maxwell Labs. (United States)
Earl Blankenship, Maxwell Labs. (United States)
M. Collins Clark, Sandia National Labs. (United States)
Raymond W. Lemke, Sandia National Labs. (United States)


Published in SPIE Proceedings Vol. 2843:
Intense Microwave Pulses IV
Howard E. Brandt, Editor(s)

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