Magnetron cathodes
AssigneeE2V Technologies (UK) Limited
InventorsClive Reynolds, Robert Charles Lodge
Life of this patent
Estimating the term…
Abstract
A magnetron cathode comprises electron emissive material included in a cathode body and a support structure for supporting the cathode body. The support structure has a longitudinal axis and includes a first part having a first cylinder integrally formed with a first end hat and a second part having a second cylinder integrally formed with a second end hat. The first cylinder and the second cylinder have an overlapping region in the longitudinal axial direction and are joined together. The cathode body is located around the first cylinder of the first part of the support structure and is joined to the first cylinder by a brazed joint. The outer surface of the first cylinder is grooved at the brazed joint.
Claims19
A magnetron cathode comprising:
- a cylindrical cathode body which includes electron emissive material and a support structure arranged to support the cathode body, the support structure having a longitudinal axis and including a first part having a first cylinder integrally formed with a first end hat and a second part having a second cylinder integrally formed with a second end hat, the first cylinder and the second cylinder having an overlapping region in the longitudinal axial direction and being joined together, the cathode body being located around the first cylinder of the first part of the support structure and being joined to the first cylinder by a brazed joint and the outer surface of the first cylinder being grooved at the brazed joint.
A magnetron comprising a magnetron cathode and an anode structure, said anode structure being arranged coaxially with the magnetron cathode, and said magnetron cathode comprising:
- a cylindrical cathode body which includes electron emissive material and a support structure arranged to support the cathode body, the support structure having a longitudinal axis and including a first part having a first cylinder integrally formed with a first end hat and a second part having a second cylinder integrally formed with a second end hat, the first cylinder and the second cylinder having an overlapping region in the longitudinal axial direction and being joined together, the cathode body being located around the first cylinder of the first part of the support structure and being joined to the first cylinder by a brazed joint and the outer surface of the first cylinder being grooved at the brazed joint.
Dependencies are inferred from the claim text.