Superconducting cavity vacuum sealing flange, radio frequency superconducting cavity and preparation method thereof
A radio frequency superconducting cavity and vacuum sealing technology, applied in accelerators, electrical components and other directions, can solve the problems of vacuum leakage of superconducting cavity, high price, and high cost of radio frequency cavity, so as to improve reliability, reduce production cost, improve The effect of assembly efficiency
Pending Publication Date: 2022-05-06
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology
At present, the preferred material for the development of superconducting cavities is metal niobium with RRR value greater than 300, but the hardness of this type of niobium (HV 10 ) is less than 60 and cannot be used to make a vacuum-tight structure
[0003] Because niobium-titanium alloy can be connected with metal niobium by electron beam welding, domestic and foreign laboratories choose the raw material of the vacuum sealing structure of the radio frequency superconducting cavity. The flange sealing surface is mainly a flat sealing structure, but the sealing structure will lead to super Vacuum leaks often occur in the guiding cavity, and it takes a lot of manpower, material and financial resources to resurface and assemble the superconducting cavity, which affects the progress of large scientific projects
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[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention are clearly and completely described below. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without making creative efforts belong to the protection scope of the present invention.
[0027] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second", "third", "fourth" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or ite...
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Abstract
The invention relates to a superconducting cavity vacuum sealing flange, a radio frequency superconducting cavity and a preparation method thereof, and the superconducting cavity vacuum sealing flange comprises the following components: a sealing flange body, the sealing surface of the sealing flange body is a knife edge sealing surface; the transition adapter is of a tubular structure, the outer wall of the transition adapter is fixedly connected with the inner wall of the annular cavity of the sealing flange body, and the inner wall of the transition adapter is fixedly connected with the outer wall of the end of the radio frequency superconducting cavity body. According to the vacuum sealing flange adopted by the radio frequency superconducting cavity, the manufacturing cost of a sealing structure can be remarkably reduced, the vacuum sealing reliability of the radio frequency superconducting cavity is improved, and the assembly efficiency of the radio frequency superconducting cavity is improved.
Description
technical field [0001] The invention relates to a superconducting cavity vacuum sealing flange, a radio frequency superconducting cavity and a preparation method thereof, belonging to the technical field of particle accelerators. Background technique [0002] The radio frequency superconducting resonant cavity (referred to as the superconducting cavity) is the core component of the superconducting charged particle accelerator. Its main function is to convert the energy stored in the radio frequency electromagnetic field into the kinetic energy of charged particles, so that the accelerator can obtain high-quality charged particle beams. In order for the beam to maintain a sufficient lifespan and be continuously accumulated and accelerated to reach the designed energy and current intensity, the superconducting cavity must be in a high vacuum environment (the vacuum degree is better than 10 -7 Pa). At present, the preferred material for the development of superconducting cavit...
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Login to View More IPC IPC(8): H05H7/20
CPCH05H7/20
Inventor 王若旭徐孟鑫何源刘通张升学刘鲁北蒋天才黄玉璐李春龙王志军
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI