Radio frequency neutron tube ion source beam extraction desktop experiment table
A radio-frequency ion source and neutron tube technology, which is applied in the field of experimental devices for simulating the working state of neutron tubes, can solve the problems of high monatomic ion density, short life, and low stability
Inactive Publication Date: 2015-10-07
NORTHEAST NORMAL UNIVERSITY
View PDF9 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The same amount of gas is adsorbed, and the density of monoatomic ions is high; the beam flow rate of deuterium (D) and tritium (T) ions required to produce the same yield of neutrons is relatively small, and the sputtering damage to the target is very small, and the life of the target It can be significantly extended, and can solve the current problems of low output, short life and low stability of neutron tubes
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The radio frequency neutron tube ion source beam extraction table top experiment platform of the present invention is composed of three different types of radio frequency ion source components, a beam extraction part and a vacuum environment part. In terms of structure, the upper part adopts a cylindrical axisymmetric structure, and the magnetic steel 9, the antenna (one of 1, 4, and 5) and the corresponding quartz discharge tube (one of 2, 3, and 6) are placed in a stainless steel bell. The top of the cover 12, the lead-out cylinder 13, the target 14, the high-voltage insulating support 15, the electrodes (20, 21, 26), the lighting lamp 19, the vacuum gauge 25, etc. are all placed on the vacuum flange 17 in the stainless steel bell jar, and the lower part is Square tabletop flange platform support for electrical control equipment, gas flow and vacuum monitors. The upper and lower parts constitute a compact and easy-to-use ion source beam extraction experimental device....
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
Login to View More Abstract
The invention relates to an experimental apparatus for simulating the working state of a neutron tube, in particular, a radio frequency neutron tube ion source beam extraction desktop experiment table. The radio frequency neutron tube ion source beam extraction desktop experiment table is composed of radio frequency ion source assemblies in three kinds of different forms, a beam extraction part and a vacuum environment part. Plasma generation takes place in discharge tubes, and beam extraction takes place in a stainless steel immersion bell. With the experiment table adopted, different types of antennas can be selected to be matched with the discharge tubes according to experimental requirements; when positive ions are extracted, the applying of negative high pressure of an extraction cylinder is accelerated; and when negative ions are extracted, the applying of positive high pressure of the extraction cylinder is accelerated, and extracted beams include negative ions and electrons, and a spare electrode is additionally installed in a direction which is vertical to an extraction direction so as to be adopted as a collector electrode of the electrons. With the radio frequency neutron tube ion source beam extraction desktop experiment table of the invention adopted, various parameters can be conveniently optimized and combined, and radio frequency ion source beam extraction experiments and neutron tube overall work state simulation experiments can be performed, or the design size, material and cusped magnetic field design of a certain element can be checked.
Description
technical field [0001] The invention belongs to an experimental device for simulating the working state of a neutron tube, and in particular relates to a desktop experiment platform for extracting beam current of a radio frequency (RF) neutron tube ion source. Background technique [0002] Radio frequency neutron tubes are widely used in neutron photography, safety inspection system, material scanning, soil analysis, oil well logging, etc. Long-life, compact RF ion sources combined with reproducible targets increase throughput and reduce costs. Using a helical or ribbon antenna over an insulating discharge vessel, electromagnetic energy is coupled into the gas, resulting in ionization, dissociation, and maintenance of the plasma. The RF ion source has the advantages of simple structure and high ratio of monatomic ions, and is one of the key components of the RF neutron tube. [0003] Due to different application fields, different types of new radio frequency neutron tubes ...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/20
Inventor 黄继鹏
Owner NORTHEAST NORMAL UNIVERSITY