Rotatable targeting magnet apparatus and method of use thereof in conjunction with a charged particle cancer therapy system
First Claim
1. An apparatus for guiding positively charged particles traversing a beam path toward a tumor of a patient, comprising:
- a charged particle cancer therapy system, comprising;
an accelerator configured to accelerate the positively charged particles; and
a beamline configured to transport the positively charged particles from said accelerator, said beamline comprising an arc, said arc comprising a final portion, said final portion of said beamline comprising;
a penultimate magnet; and
a final magnet, wherein a line running from a central point of said penultimate magnet to a central point of said final magnet comprises a downward and non-vertical vector, said final magnet rotatable through at least ninety degrees about a vertical axis, during use.
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Abstract
A rotatable targeting magnet apparatus and method of use thereof is described where the rotatable targeting magnet rotates independently of a beamline arc at the end of the beamline arc, where the arc is after an accelerator and before the patient in a cancer therapy system. The rotatable targeting magnet directs the charged particle beam, such as vertically, using applied current to the targeting magnet while rotation of the magnet allows scanning across the tumor. Rotation of the patient relative to the charged particle allows distribution of trailing Bragg peak energy within and/or circumferentially about the tumor.
413 Citations
19 Claims
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1. An apparatus for guiding positively charged particles traversing a beam path toward a tumor of a patient, comprising:
a charged particle cancer therapy system, comprising; an accelerator configured to accelerate the positively charged particles; and a beamline configured to transport the positively charged particles from said accelerator, said beamline comprising an arc, said arc comprising a final portion, said final portion of said beamline comprising; a penultimate magnet; and a final magnet, wherein a line running from a central point of said penultimate magnet to a central point of said final magnet comprises a downward and non-vertical vector, said final magnet rotatable through at least ninety degrees about a vertical axis, during use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for guiding positively charged particles traversing a beam path toward a tumor of a patient, comprising the steps of:
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accelerating the positively charged particles with an accelerator of a charged particle cancer therapy system; transporting the positively charged particles along a beamline from said accelerator, said beamline comprising an arc, said arc comprising a final portion, said final portion of said beamline comprising; a penultimate magnet; and a final magnet, wherein a line running from a central point of said penultimate magnet to a central point of said final magnet comprises a downward and non-vertical vector; and rotating said final magnet of said arc through at least ninety degrees about a vertical axis passing through said final magnet, said positively charged particles guided by said final magnet to the tumor of the patient. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification