Dense silicon carbide microwave absorber for electron linear acc

Details Dense silicon carbide microwave absorber for electron linear acc Dense silicon carbide microwave absorber for electron linear acc

1986-02-05

1988-07-26

Moore, David K.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 39, 333 81R, 333 81B, 333 22F, 333 22R, 501 88, H01P 126

Patent

active

047603127

ABSTRACT:
A microwave absorber composed of dense silicon carbide having an electrical resistivity of one ohm-centimeter or more. In an electron linear accelerator, it is necessary to provide a microwave absorber to absorb excess energy used to accelerate electrons and discharge this excess energy in the form of heat in order for the accelerator to operate safely. The important characteristics are high-frequency wave absorption, good heat resistance, good thermal conductivity, and stability in a vacuum. The invention meets these requirements with a microwave absorber composed of dense silicon carbide. In an electron linear accelerator the absorber is attached to the end portion of an accelerator guide or a branch portion of a power divider to absorb unnecessary wave energy. Such a microwave absorber is found to have characteristics rendering it highly suitable for this application as well as others.

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patent: 4004934 (1977-01-01), Prochazka
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patent: 4336216 (1982-06-01), Watanabe et al.
patent: 4477746 (1984-10-01), Piltch
patent: 4638268 (1987-01-01), Watanabe et al.
patent: 4661787 (1987-04-01), Lang

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