Ultra-high dose rate x-ray cabinet irradiator
AssigneeThe Johns Hopkins University
InventorsJohn Wai-Chiu Wong, Mohammad Rezaee, Iulian Iordachita
Life of this patent
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Abstract
An x-ray irradiation system includes a first x-ray tube constructed and arranged to be able to irradiate an object with at least a portion of a first x-ray beam emitted from the first x-ray tube, and a second x-ray tube constructed and arranged to be able to irradiate the object with at least a portion of a second x-ray beam emitted from said second x-ray tube simultaneously with said first x-ray beam. The first and second x-ray tubes are arranged such that the first and second x-ray beams are incident on, and intersect within, the object at respective first and second oblique angles to define a target volume such that a dose rate is substantially uniform as prescribed within said target volume.
Claims25
An x-ray irradiation system, comprising:
- a first x-ray tube constructed and arranged to be able to irradiate an object with at least a portion of a first x-ray beam emitted from said first x-ray tube;
- a second x-ray tube constructed and arranged to be able to irradiate said object with at least a portion of a second x-ray beam emitted from said second x-ray tube simultaneously with said first x-ray beam and
- a positioning assembly to which the first and second x-ray tubes are attached, wherein first and second x-ray tubes are further arranged at respective first and second vertical positions on the positioning assembly,
- wherein said first and second x-ray tubes are arranged such that said first and second x-ray beams are incident on, and intersect within, the object at respective first and second oblique angles to define a target volume such that a dose rate is substantially uniform as prescribed within said target volume, and
- wherein the angle of at least one x-ray source is adjustable on the positioning assembly to irradiate the treatment volume with an x-ray beam at a range of angles from −90 to 90 degrees, as measured from a vertical axis parallel to the vertical structure.
A method for x-ray irradiation, comprising:
- arranging a first x-ray tube to irradiate an object with at least a portion of a first x-ray beam emitted from said first x-ray tube;
- and
- arranging a second x-ray tube to irradiate said object with at least a portion of a second x-ray beam emitted from said second x-ray tube simultaneously with said first x-ray beam,
- wherein said first and second x-ray tubes are arranged such that said first and second x-ray beams are incident on, and intersect within, the object at respective first and second oblique angles to define a target volume such that a dose rate is substantially uniform as prescribed within said target volume,
- wherein the first and second x-ray tubes are attached to a positioning assembly to which,
- wherein the first and second x-ray tubes are further arranged at respective first and second vertical positions on the positioning assembly, and
- wherein the angle of at least one x-ray source is adjustable on the positioning assembly to irradiate the treatment volume with an x-ray beam at a range of angles from −90 to 90 degrees, as measured from a vertical axis parallel to the vertical structure.
Dependencies are inferred from the claim text.