Cooling systems and methods

A cooling device and refrigerant technology, applied in the directions of radiation therapy, X-ray/γ-ray/particle irradiation therapy, superconducting magnet/coil, etc., can solve problems such as difficulty, low temperature of superconducting coil, etc. Effect

Active Publication Date: 2012-01-04
TESLA ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practice, there are practical difficulties associated with conducting heat over significant distances
Accordingly, applicants have recognized that such system

Method used

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  • Cooling systems and methods
  • Cooling systems and methods
  • Cooling systems and methods

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Embodiment Construction

[0192] according to figure 1 In the embodiment, the particle accelerator 1 is mounted on a rotatable support in the form of a gantry 2 . Particle accelerator 1 includes such as figure 1 To the superconducting coils 17, 17' schematically represented in 4, the superconducting coils 17, 17' are used to generate a magnetic field when current is passed through the superconducting coils 17, 17' in use. The gantry 2 can rotate around the horizontal axis X-X from figure 1 The positions shown in are rotated 90 degrees clockwise and counterclockwise in the directions indicated by the arrows. The gantry 2 comprises a pair of legs 3, 4 extending from the axis of rotation and an arm 5 extending between the pair of legs 3, 4, the particle accelerator is mounted on the arm 5 such that the particle accelerator and the arms surround the gantry axis of rotation rotate. The axis a-a of the particle accelerator and its coils 17, 17' is parallel to the gantry rotation axis X-X. The toroidal s...

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Abstract

An ion therapy system comprises a particle accelerator (1) mounted on a rotatable gantry (2). The particle accelerator includes a superconducting coil (17) which rotates about its axis as the particle accelerator rotates about the gantry axis in use to direct an output beam towards a target from different directions. The particle accelerator is rotatable through (180) degrees to move the beam through a corresponding arc. The particle accelerator includes cooling system arranged to cool the coil as the coil rotates. The superconducting coil (17) is mounted in a coil support (25). The coil is surrounded by a cryogen chamber (32) which is located radially outwardly from the coil (17) on the other side of the support (25). The cryogen chamber is in fluid communication with a cryogen recondensing unit (29) whereby vaporized cryogen may flow from the cryogen chamber (32) to the cryogen recondensing unit (29) to be recondensed in use before returning to the cryogen chamber. Thermally conductive means (40) is arranged to facilitate heat transfer from the superconducting coil (17) to the cryogen chamber (32) to vaporize cryogen contained therein in use and thereby remove heat from the coil.

Description

technical field [0001] The present invention relates to a cooling system and method for a particle accelerator comprising one or more superconducting coils, and more particularly to a cooling system for a rotatable particle accelerator comprising one or more superconducting coils and methods. Background technique [0002] Particle accelerators are used in many applications including, for example, particle physics applications, and ion therapy, such as heavy ion therapy or proton therapy. In certain applications, it is desirable to be able to direct the output beam to impinge on the target from several different directions. This technique is often used in ion therapy applications in an attempt to irradiate target structures such as tumors while reducing the irradiation dose to surrounding healthy tissue. [0003] In some conventional systems, steering of the output beam can be accomplished by using a static particle accelerator to supply the particle beam and providing a st...

Claims

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Application Information

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IPC IPC(8): H05H7/00H05H11/00H05H13/00H05H13/02H01F6/04
CPCH05H13/00H05H13/02H05H7/00H01F6/04H05H11/00A61N5/1081A61N2005/005A61N2005/1087A61N5/01
Inventor 迈克尔·科林·贝格弗雷德里克·托马斯·大卫·戈尔迪
Owner TESLA ENG
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