Recent results in the Hard-Tube MILO experiment

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:323592

Haworth, M; Hendricks, K; Englert, T ^[1]

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1. Phillips Lab., Kirtland AFB, NM (United States). WSQ Div.; and others

The Hard-Tube MILO (Magnetically Insulated transmission Line Oscillator) is an all stainless steel, brazed version of the gigawatt-class, L-band tube reported by Calico et al. The Calico MILO generated a 1.5-GW, 60-ns FWHM microwave pulse using a 500-kV, 60-kA, 500-ns electron beam, while the Hard-Tube MILO generates a 1.8-GW, 170-ns FWHM microwave pulse using a 500-kV, 60-kA, 300-ns electron beam. The authors show that this improved performance is due to suppression unwanted electron emission from the cathode in the region of the first two tube cavities. They also report on experiments to identify the breakdown mechanism in the vacuum radome for the Vlasov antenna which is used as a high-power microwave load for both MILO experiments. Finally, experimental results are presented for an optimized version of the Hard-Tube MILO that computer simulations have shown should generate over 3.0 GW.

• OSTI ID: 323592
• Report Number(s): CONF-970559--
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
ELECTRON BEAMS
MAGNETIC INSULATION
MICROWAVE TUBES
PERFORMANCE
POWER RANGE 01-10 GW