A conduction-cooled DC-SRF electron gun

CN118175719BActive Publication Date: 2024-12-10PEKING UNIV
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Patent Information

Application Number
CN202410292961.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-14
Publication Date
2024-12-10
Estimated Expiration
2044-03-14

AI Technical Summary

Technical Problem

The existing RF superconducting electron guns rely on liquid helium systems, resulting in complex equipment and high operating and maintenance requirements, limiting their application scope.

Method used

The conduction cooling technology is adopted, and a commercial small low-temperature refrigerator is used to replace the large liquid helium system. The conductive cooling of the radio frequency superconducting cavity is achieved through a reasonable cooling structure design, reducing the equipment's dependence on liquid helium.

Benefits of technology

The electronic gun structure is simplified, investment and operation costs are reduced, and the use of superconducting electronic guns is expanded, making them suitable not only for scientific research, but also for industries and defense.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a conduction-cooled DC-SRF electron gun, characterized in that it comprises a cryostat based on conduction cooling technology, a cathode, a DC high-voltage component, a power feed-in system, and a radio frequency superconducting cavity component; wherein the cryostat is used to provide a low-temperature non-magnetic vacuum environment for the cathode, the DC high-voltage component, the power feed-in system, and the radio frequency superconducting cavity component; the cathode is used to generate an electron beam and input it into the DC high-voltage component; the DC high-voltage component is used to lead the electron beam into the radio frequency superconducting cavity of the radio frequency superconducting cavity component; the power feed-in system is connected to the radio frequency superconducting cavity, and is used to establish a radio frequency electromagnetic field in the radio frequency superconducting cavity; the radio frequency superconducting cavity component accelerates the electron beam led out from the DC high-voltage component. The present invention uses a small cryogenic refrigerator to replace the traditional liquid helium system, and uses a reasonable conduction cooling structure to make the superconducting electron gun work stably in a continuous wave mode, greatly expanding the use of the superconducting electron gun.
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