Recent results in the hard-tube MILO experiment

Conference · Thu Dec 31 04:00:00 EST 1998

OSTI ID:343603

Haworth, M; Baca, G; Hendricks, K; Shiffler, D ^[1]; Englert, T ^[2]; Henley, D; LaCour, M; Sena, M ^[3]; Lemke, R ^[4]

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1. Air Force Research Lab., Kirtland AFB, NM (United States)
2. Numerex, Albuquerque, NM (United States)
3. Maxwell Labs., Inc., Albuquerque, NM (United States)
4. Sandia National Labs., Albuquerque, NM (United States)

The Hard-Tube MILO (Magnetically Insulated transmission Line Oscillator) is a gigawatt-class high-power microwave tube which employs conventional-tube brazing techniques rather than finger stock RF joints in its construction. The authors report on recent improvements made to the cathode and to the extractor in order to improve the shot-to-shot reproducibility of the tube by eliminating breakdown at triple points. Results from optimizing the impedance match of the extractor circuit to the tube, which has been predicted to increase the output power by up to 50%, are also presented. Finally, they report on Hard-Tube MILO results when using the recently upgraded IMP pulser. This upgrade gives the authors the potential to increase the output microwave pulse duration from its previously pulsed-power-limited value of 170 ns (FWHM) to nearly 500 ns.

• OSTI ID: 343603
• Report Number(s): CONF-980601--
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CATHODES
DESIGN
GIGAWATT POWER RANGE
MICROWAVE TUBES
MODIFICATIONS
PERFORMANCE