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A gasification discharge device for an ion source used in an isotope electromagnetic separator

A discharge device and electromagnetic separation technology, applied to the parts of the particle separator tube, ion source/gun, etc., can solve the problems of uneven heating of the arc discharge chamber, uneven expansion of the arc discharge chamber, and increased cleaning frequency, etc., to achieve Ensure long-term stable work, reduce the degree of pollution, and reduce the frequency of ignition

Active Publication Date: 2017-12-26
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Description
  • Claims
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Problems solved by technology

The traditional arc discharge chamber (button arc chamber) is composed of two parts. Under long-term work, the uneven heating of the arc discharge chamber will cause the arc discharge chamber to expand unevenly, and gaps will appear to reduce the airtightness of the ion source.
These problems lead to the increase of dark current in the ion source, affect the vapor density of the working substance, waste expensive ion source raw materials, and lead to an increase in the degree of pollution of the ion source, increase the frequency of cleaning, and increase the cost of use.

Method used

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  • A gasification discharge device for an ion source used in an isotope electromagnetic separator
  • A gasification discharge device for an ion source used in an isotope electromagnetic separator
  • A gasification discharge device for an ion source used in an isotope electromagnetic separator

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] The ion source is used as a device for generating ion beams, such as figure 1 , figure 2 As shown, its working principle is: RbC1 is installed in the crucible 8, after being heated and gasified by the crucible heating furnace tube 10, it enters the discharge area of ​​the discharge chamber 14 through the steam distribution chamber 7 (i.e. the boat-shaped plate) and the steam distribution plate 30; The filament 4 emits electrons to bombard the cathode 5, and the electrons emitted by the cathode 5 are accelerated by the electric field and confined by the magnetic field, pass through the electron window 6, enter the discharge chamber 14, and collide with the gas molecules of RbC1 to form arc discharge plasma; arc discharge plasma Extracted by the extraction electrode system, an ion beam with certain energy and shape is formed.

[0034] like im...

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Abstract

The invention belongs to the technical field of electromagnetic separators of isotopes and particularly relates to an ion-source gasification discharge device for an electromagnetic separator of the isotopes. The ion-source gasification discharge device is arranged on an ion source of the electromagnetic separator of the isotopes and comprises an arc discharge chamber, a crucible connected with the rear part of the arc discharge chamber, a cathode arranged at the top part of the arc discharge chamber and a lamp filament; and the arc discharge chamber is directly connected with the crucible in a sealing manner. The ion-source gasification discharge device has the advantages that the traditional ion-source gasification discharge device for the electromagnetic separator of the isotopes is relatively poor in air tightness so as to cause increase of dark current in the ion source, influence the steam density of working substances and waste expensive ion-source materials; and the air tightness is good, the phenomena of dark current and sparking in the ion source are reduced, the utilization ratio of the materials of the ion source and the abundance of the isotopes from separation are increased, and the working time of the electromagnetic separator of the isotopes is prolonged.

Description

technical field [0001] The invention belongs to the technical field of isotope electromagnetic separators, in particular to a gasification discharge device for ion sources used in isotope electromagnetic separators. Background technique [0002] The electromagnetic separation method has an indispensable position in the field of isotope separation. The electromagnetic separation method uses ions with the same energy and different masses to achieve isotope separation in a transverse magnetic field with different rotation radii. The isotope electromagnetic separator is a device that uses electromagnetic separation to separate isotopes. The ion beam to be separated is emitted from the ion source of the isotope electromagnetic separator, separated by the magnetic field in the isotope electromagnetic separator, and then received by the receiving device to complete the separation of isotopes. [0003] The electromagnetic separation method is the only feasible method to obtain the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/10
CPCH01J49/10
Inventor 任秀艳曹进文吴灵美李公亮
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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