Abrégé

A high-power vacuum electron device source of 10 mm-0.1 mm wavelength radiation is composed of an electron gun [100] joined to a RF vacuum electronic circuit [102]. The electron gun [100] includes a cathode, a focus electrode, and a grid. It generates an electron beam that is injected into the circuit for amplifying RF waves. The circuit [102] is composed of metal circuit plates, e.g., copper alloy, that mate with each other and are shaped to provide a beam tunnel and RF circuit envelopes. Precision alignment pins made of nickel super alloy, are used to mutually align the metal circuit plates using elastic averaging implemented by positioning the precision alignment pins in precision alignment holes in the metal circuit plates. Preferably, the electron gun is aligned with the circuit using quasi-kinematic coupling.

Classes IPC  ?

• H01J 29/66 - Lentilles magnétiques utilisant uniquement des moyens électromagnétiques
• H01J 29/54 - Dispositifs de centrage d'un rayon ou d'un faisceau
• H01J 29/04 - Cathodes

Abrégé

A high-power vacuum electron device source of 10 mm-0.1 mm wavelength radiation is composed of an electron gun joined to a RF vacuum electronic circuit. The electron gun includes a cathode, a focus electrode, and a grid. It generates an electron beam that is injected into the circuit for amplifying RF waves. The circuit is composed of metal circuit plates, e.g., copper alloy, that mate with each other and are shaped to provide a beam tunnel and RF circuit envelopes. Precision alignment pins made of nickel super alloy, are used to mutually align the metal circuit plates using elastic averaging implemented by positioning the precision alignment pins in precision alignment holes in the metal circuit plates. Preferably, the electron gun is aligned with the circuit using quasi-kinematic coupling.

Classes IPC  ?

• H01J 29/04 - Cathodes
• H01J 29/54 - Dispositifs de centrage d'un rayon ou d'un faisceau
• H01J 29/66 - Lentilles magnétiques utilisant uniquement des moyens électromagnétiques

Abrégé

An electron beam gun for a high power RF vacuum device has components joined by a fixed kinematic coupling [8a] to provide both precise alignment and high voltage electrical insulation of the components. The kinematic coupling [8a] has high strength ceramic elements directly bonded to one or more non-ductile rigid metal components using a high temperature active metal brazing alloy. The ceramic elements have a convex surface that mates with concave grooves [9] in another one of the components. The kinematic coupling, for example, may join a cathode assembly and/or a beam shaping focus electrode [6, 7] to a gun stem [10], which is preferably composed of ceramic. The electron beam gun may be part of a high power RF vacuum device such as, for example, a gyrotron, klystron, or magnetron.

Classes IPC  ?

• H01J 29/46 - Dispositions des électrodes et des pièces associées en vue de produire ou de commander le rayon ou le faisceau, p. ex. dispositifs électronoptiques

Abrégé

An electron beam gun for a high power RF vacuum device has components joined by a fixed kinematic coupling to provide both precise alignment and high voltage electrical insulation of the components. The kinematic coupling has high strength ceramic elements directly bonded to one or more non-ductile rigid metal components using a high temperature active metal brazing alloy. The ceramic elements have a convex surface that mates with concave grooves in another one of the components. The kinematic coupling, for example, may join a cathode assembly and/or a beam shaping focus electrode to a gun stem, which is preferably composed of ceramic. The electron beam gun may be part of a high power RF vacuum device such as, for example, a gyrotron, klystron, or magnetron.

Classes IPC  ?

• H01J 23/06 - Canons à électrons ou à ions
• H01J 29/04 - Cathodes
• H01J 29/48 - Canons à électrons
• H01J 29/58 - Dispositifs de focalisation ou de réflexion du rayon ou du faisceau