Heat insulation device for mercury isotope electromagnetic separator and mercury isotope electromagnetic separator
A technology of thermal insulation device and electromagnetic separation, which is applied to the parts of the particle separator tube, the pipeline through thermal insulation protection, and the ion source/gun, etc. problems, to achieve the effect of accurately controlling the gas output of the crucible, optimizing the ion source gasification discharge device, and realizing the gas output of the crucible
Active Publication Date: 2021-07-20
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology
Among them, the traditional arc discharge chamber and the crucible are directly connected. This design is likely to cause heat transfer between the arc discharge chamber and the crucible (the temperature of the arc discharge chamber is high, and it is easy to transfer heat to the crucible), thus affecting the temperature of the crucible. Outgassing of separated elemental vapors, which in turn affects mercury isotopic abundance
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[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiment is one embodiment of the present invention, but not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] 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.
[0023] In the device structure used for ion beam generation in a common isotope electromagnetic separator, the crucible and arc discharge chamber are the gasifi...
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The invention provides a heat insulation device for a mercury isotope electromagnetic separator. The ion source of the mercury isotope electromagnetic separator includes an arc discharge chamber and a crucible, wherein the heat insulation device is arranged between the arc discharge chamber and the crucible, and the arc discharge chamber and the crucible The heat insulation device is sealed and connected, the crucible is sealed and connected with the heat insulation device, and the steam in the crucible flows into the arc discharge chamber through the heat insulation device; a mercury isotope electromagnetic separator with the heat insulation device is also provided. The heat insulation device of the present invention controls the temperature stability in the crucible, thereby suppressing the influence of temperature changes on the gas output of the sample to be tested in the crucible, realizing precise control of the gas output of the crucible, thereby realizing the separation of high-abundance mercury isotopes.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of isotope electromagnetic separators, in particular to a heat insulation device for a mercury isotope electromagnetic separator and a mercury isotope electromagnetic separator. Background technique [0002] Mercury isotopes are often used in research fields such as nuclear reactors, physics, medicine, and the environment. Currently, methods for separating mercury isotopes include electromagnetic separation, photochemical methods, and selective resonance ionization methods. features are of great interest. When using the electromagnetic separation method to separate isotopes, the gas output of the sample to be tested in the ion source is a key factor affecting the isotope abundance. For example, for mercury, the saturated vapor pressure is high, the gas output is large, and the temperature sensitivity is high. Its proper gas output has an important influence on the abundance of mercury ...
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IPC IPC(8): H01J49/12F16L59/06
CPCF16L59/06H01J49/12
Inventor 徐昆任秀艳曾自强王国宝吴灵美
Owner CHINA INSTITUTE OF ATOMIC ENERGY