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Multi-channel ionization chamber and collector of medical linear accelerator

A linear accelerator and collector technology, applied in the direction of circuits, discharge tubes, electrical components, etc., can solve problems such as distortion, output signal jitter, and signals are easy to interfere with each other, so as to improve stability, simplify structure, and reduce electric field edge distortion effect of effect

Active Publication Date: 2021-01-01
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the signals between different charge collection blocks of the collector are easy to interfere with each other, resulting in jitter or distortion of the output signal

Method used

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  • Multi-channel ionization chamber and collector of medical linear accelerator
  • Multi-channel ionization chamber and collector of medical linear accelerator
  • Multi-channel ionization chamber and collector of medical linear accelerator

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Embodiment Construction

[0021]In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are just some examples or embodiments of the application. For those of ordinary skill in the art, without creative work, the application can be applied to the application according to these drawings. Other similar scenarios. Unless it is obvious from the language environment or otherwise stated, the same reference numerals in the figures represent the same structure or operation.

[0022]As shown in the present application and claims, unless the context clearly indicates exceptions, the words "a", "an", "an" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "include" only suggest that the clearly identified steps and elements are includ...

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Abstract

The invention provides a collecting electrode of a multi-channel ionization chamber of a medical linear accelerator. The collecting electrode comprises a first collecting part, multiple second collecting parts and a protective ring; the first collecting part is positioned in the centre; the multiple second collecting parts surround the first collecting part on the plane; the multiple second collecting parts are separated from the first collecting part; and the protective ring is provided with a first part surrounding the periphery of the multiple second collecting parts on the plane and a second part for separating any two adjacent collecting parts. The invention further provides the multi-channel ionization chamber of the medical linear accelerator.

Description

Technical field[0001]The present invention mainly relates to radiotherapy equipment, in particular to the ionization chamber of a medical linear accelerator and its collector.Background technique[0002]Systems used to emit high-energy radiation beams, such as linear accelerators, can be used in areas such as providing radiotherapy. For example, a linear accelerator emits a cone of radiation, which can be an electron beam or a photon (for example, X-ray) beam. When used to provide radiotherapy, the emitted beam will be conformed to a shape that basically fits the diseased tissue, so as to minimize the side effects on the surrounding healthy tissue. In radiotherapy, patients with different conditions usually have different dose prescriptions. Small doses will lead to poor treatment effects, and larger doses will have safety risks. Therefore, the accuracy of dose is very important. Usually, the ionization chamber is used as the main component to monitor and control the output dose of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J47/02
CPCH01J47/02
Inventor 李贺章卫傅费超高延龙
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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