Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fixed beam phase selection structure in central region of cyclotron

A cyclotron and phase selection technology, applied in magnetic resonance accelerators, accelerators, electrical components, etc., can solve the problems of accumulating radioactive doses, affecting the debugging and operation of accelerators, etc., to reduce doses, improve extraction efficiency, and reduce beam current phase. wide effect

Active Publication Date: 2019-02-26
CHINA INSTITUTE OF ATOMIC ENERGY
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In a cyclotron using an internal ion source, the acceptance phase width of the central region is usually above 30 degrees, while the phase range with high extraction efficiency in resonance extraction is only 5-10 degrees, so some particles with unsuitable phases will be extracted in the extraction area. The accumulated radioactive dose affects the commissioning and operation of the accelerator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixed beam phase selection structure in central region of cyclotron
  • Fixed beam phase selection structure in central region of cyclotron
  • Fixed beam phase selection structure in central region of cyclotron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0023] A fixed beam phase selection structure in the central region of a cyclotron, such as Figure 1-2 , comprising a high-frequency cavity 1, a slot 11 is provided at the head of the high-frequency cavity 1, and a phase selector 2 is inserted into the slot 11; the phase selector 2 is a plate-shaped structure, and the height of the phase selector 2 is the same as that of the card The slots 11 have the same height, and the width of the phase selector 2 is smaller than the width of the slot 11, so that the phase selector 2 can have a certain displacement adjustment in the width direction of the slot...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of physical particle acceleration, and discloses a fixed beam phase selection structure in the central region of a cyclotron. The problem of poor particle extractioneffect is solved. According to the specific solution, the structure comprises a high frequency cavity inside the cyclotron. A phase selector is arranged on the head of the high frequency cavity. Thephase selector is provided with a slit for screening particles. Phase screening is carried out on the low energy end of the cyclotron, so that most of particles with unsuitable phase are deposited inthe central region. On one hand, the extraction efficiency is improved, and radioactive dose is not accumulated in an extraction region. On the other hand, the emittance of a beam is reduced in radialand longitudinal directions due to particle screening, and the sensitivity of the beam to accelerator parameters such as high frequency voltage and frequency is reduced.

Description

technical field [0001] The invention relates to the field of physical particle acceleration, in particular to a fixed beam current phase selection structure in the central area of ​​a cyclotron. Background technique [0002] A cyclotron is a device that uses a magnetic field and an electric field to make charged particles perform a cyclotron motion and is repeatedly accelerated by a high-frequency electric field during the motion. [0003] In a cyclotron using an internal ion source, the acceptance phase width of the central region is usually above 30 degrees, while the phase range with high extraction efficiency in resonance extraction is only 5-10 degrees, so some particles with unsuitable phases will be extracted in the extraction area. The accumulated radioactive dose will affect the commissioning and operation of the accelerator. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fixed...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05H13/00
CPCH05H13/005
Inventor 安世忠张东昇贾先禄李明王川郑侠
Owner CHINA INSTITUTE OF ATOMIC ENERGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com