Charged particle cancer therapy beam path control method and...

A - Human Necessities – 61 – N

Patent

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A61N 5/10 (2006.01) A61N 5/01 (2006.01) H05H 7/00 (2006.01) H05H 13/04 (2006.01)

Patent

CA 2725493

The invention comprises a charged particle beam path coupling an injector, synchrotron accelerator, beam transport system, targeting system, and/or patient interface method and apparatus. Preferably, the injector comprises: a negative ion beam source, a two phase ion source vacuum system, an ion beam focusing lens, and/or a tandem accelerator. Preferably, the synchrotron comprises turning magnets, edge focusing magnets, magnetic field concentration magnets, winding and correction coils, flat magnetic field incident surfaces, and/or extraction elements. Preferably, the synchrotron, beam transport system, targeting system, and patient interface combine to allow multi-axis / multi-field irradiation, where multi-axis control comprises control of horizontal and vertical beam position, beam energy, and/or beam intensity and multi-field control comprises control of patient rotation and distribution of delivered energy in and about the tumor in a time controlled, targeted, accurate, precise, dosage controlled, and/or efficient manner.

Linvention concerne un trajet d'un faisceau de particules chargées raccordant un injecteur, un accélérateur synchrotronique, un système de transport du faisceau, un système de ciblage, et/ou un procédé et un appareil d'interface patient. De préférence, l'injecteur comprend: une source de faisceau d'ions négatifs, un système à vide biphasé de la source d'ions, une lentille de focalisation du faisceau et/ou un accélérateur tandem. De préférence, le synchrotron comprend des aimants tournants, des aimants de focalisation de bords, des aimants de concentration de champ magnétique, des bobines d'enroulement et de correction, des surfaces incidentes de champ magnétique plan et/ou des éléments d'extraction. De préférence, le synchrotron, le système de transport du faisceau, le système de ciblage et l'interface patient sont combinés pour permettre une irradiation multi-axes/multichamps. Le réglage multi-axes comprend le réglage de la position horizontale et verticale du faisceau, de l'énergie du faisceau et/ou de l'intensité du faisceau. Le réglage multichamps comprend le réglage de la rotation du patient et la répartition de l'énergie libérée dans et autour de la tumeur de manière ciblée, exacte, précise et efficace, et régulée dans le temps et le dosage.

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