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US 7,030,398 B2Granted
Laser driven ion accelerator
AssigneeThe Regents of the University of California
InventorToshiki Tajima
Life of this patent
Estimating the term…
Abstract
A system and method of accelerating ions in an accelerator to optimize the energy produced by a light source. Several parameters may be controlled in constructing a target used in the accelerator system to adjust performance of the accelerator system. These parameters include the material, thickness, geometry and surface of the target.
Claims13
A system comprising:
- a light source capable of producing an energy pulse;
- a target having a first layer and a second layer;
- said first and second layers having a combined thickness in the range of approximately 60 to approximately 2500 nm;
- said first layer having a substantially concave shape;
- said first layer having a grooved surface;
- wherein said first layer is a high Z metal material and said second layer is a lower Z metal material;
- and
- wherein said first layer is capable of absorbing greater than approximately 70% the energy of said energy pulse.
5 more elements
A system comprising:
- a light source capable of producing an energy pulse;
- a target having a first layer and a second layer;
- and
- wherein said first layer is capable of absorbing greater than approximately 70% of the energy of said energy pulse.
1 more element
A system comprising:
- a light source capable of producing an energy pulse;
- a means for absorbing greater than approximately 70% of the energy of said energy pulse and producing radiation elements;
- and
- a means for discriminating said radiation elements to deliver energy in the range of approximately 10 to approximately 500 MeV to a treatment field.
1 more element
A method comprising:
- firing a pulse having an energy range of approximately 1 to approximately 10 Joules from a light source at a target;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in an energy range of approximately 10 to approximately 500 MeV to a treatment field.
2 more elements
A method comprising:
- firing a pulse having an energy range of approximately 1 to approximately 10 Joules from a light source at a target;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in an energy range of approximately 100 to approximately 200 MeV to a treatment field.
2 more elements
A method of delivering a radiation dose to treat an oncological treatment field comprising:
- firing a pulse having an energy range of approximately 1 to approximately 10 Joules from a light source at a target;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in an energy range of approximately 100 to approximately 200 MeV to said oncological treatment field.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a substantially concave shape;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in an energy range of approximately 10 to approximately 500 MeV to a treatment field.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a substantially concave shape;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in the form of a beam having a spot size of approximately 0.5 to approximately 20 cm2 on a treatment field.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a roughened surface;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in an energy range of approximately 10 to 500 MeV to a treatment field.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a first layer made from a high Z material and a second layer made from a lower Z material;
- guiding radiation elements emitted from said laser pulse striking said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions in an energy range of approximately 10 to approximately 500 MeV to a treatment field.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a shaped surface;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions which may penetrate about 10 to about 20 cm beneath the surface of skin tissue in a treatment field.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a shaped surface;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- delivering said ions to produce a dose per shot at a treatment field in the range of about 0.1 to about 10 Gy.
2 more elements
A method comprising:
- firing a pulse from a light source at a target having a shaped surface;
- guiding radiation elements emitted from said target;
- discriminating ions having a predetermined energy range from said radiation elements;
- and
- producing a dose per second at a treatment field of approximately 0.1 to approximately 100 Gy/second.
2 more elements
Dependencies are inferred from the claim text.