Monolithic structure with internal cooling for medical linac

Details Monolithic structure with internal cooling for medical linac Monolithic structure with internal cooling for medical linac

A - Human Necessities

61

N

A61N 5/10 (2006.01)

Patent

CA 2208112

In a clinical linear accelerator system for delivering charged particles for medical applications, a series of monolithic cavity-defining members is connected to form a succession of accelerating cavities, with temperature regulation being achieved by aligning internal cooling passageways through the series of monolithic members. As a result, a continuous coolant flow path is formed through the monolithic members. At each member-to-member interface, there is a leakage-release path for non-intrusively conducting any leakage that occurs at the interface. In the preferred embodiment, there is a braze connection that separates the leakage-release path at an interface from the coolant flow path at that interface. The braze connection provides a seal that further safeguards against coolant entering an area in which performance of the system is affected.

Dans un accélérateur linéaire médical de livraison de particules chargées pour des applications médicales, une série de composants monolithiques définissant des cavités est connectée pour former une succession de cavités d'accélération, avec une régulation de la température qui est atteinte en alignant des canaux internes de refroidissement à l'aide de la série de composants monolithiques. Par conséquent, un canal de refroidissement continu est formé au moyen des composants monolithiques. chacune des interfaces composant-à-composant, un canal de relâchement de fuite dirige, de façon non intrusive, toute fuite survenant à l'interface. Dans l'exemple préférée de la présente invention, une connexion de brasage sépare le canal de relâchement de fuite à une interface à partir du canal de refroidissement jusqu'à cette même interface. La connexion de brasage est munie d'un joint qui empêche le liquide de refroidissement d'entrer dans une zone où ce denier pourrait nuire au rendement du système.

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