Microfocus linear accelerator
AssigneeVarex Imaging Corporation
InventorAndrey Valentinovich Mishin
Life of this patent
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Abstract
Some embodiments herein include a linear accelerator (LINAC) comprising a particle source to generate charged particles, a radiofrequency (RF) source configured to generate RF power, and an accelerator structure coupled to the particle source and the RF source. The accelerator structure may include a plurality of cells arranged adjacent to one another. Each cell may define an accelerating cavity and an aperture into the accelerating cavity configured to receive the charged particles therethrough. The apertures of the cells may be each sized to output a beam with a focal spot size less than 0.5 millimeters Full Width at Half Maximum (FWHM) spot diameter without the use of external focusing mechanisms.
Claims20
A linear accelerator comprising:
- a particle source to generate charged particles;
- a radiofrequency (RF) source configured to generate RF power;
- and
- an accelerator structure coupled to the particle source and the RF source, the accelerator structure comprising a plurality of cells arranged adjacent to one another, each cell defining an accelerating cavity and an aperture into the accelerating cavity configured to receive the charged particles therethrough;
- wherein the apertures of the cells are each sized to output a beam with a focal spot size less than 0.5 millimeters Full Width at Half Maximum (FWHM) spot diameter free of magnets.
An acceleration cell for an accelerator structure of a linear accelerator, the cell comprising:
- a chamber body;
- an accelerating cavity defined by the chamber body;
- and
- an aperture defined by the chamber body that forms an opening into the accelerating cavity configured to receive charged particles therethrough;
- wherein the aperture has a diameter of less than 2.5 millimeters.
An acceleration cell for an accelerator structure of a linear accelerator, the cell comprising:
- a housing defining an acceleration chamber comprising a first aperture to receive charged particles therethrough, wherein the first aperture is sized to output a beam with a focal spot size less than 0.5 millimeters Full Width at Half Maximum (FWHM) spot diameter free of magnets, and wherein the first aperture has a diameter of between one millimeter and 2.5 millimeters;
- and
- a coupling chamber defined by the housing adjacent to the acceleration chamber, the coupling chamber comprising a second aperture sized and shaped to receive tuning instruments;
- wherein the second aperture of the coupling chamber is larger than the first aperture of the acceleration chamber.
Dependencies are inferred from the claim text.