Neutron generator

A technology for neutron generators and trigger electrodes, which is applied in DC voltage accelerators, electrical components, accelerators, etc., can solve the problems of target damage, large beam load, and high risk of breakdown, so as to increase neutron yield and improve Effects of target lifetime and high extraction efficiency

Pending Publication Date: 2017-08-08
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a neutron generator to solve the problems of large beam load, high breakdown risk, and target damage caused by too many metal ions generated by the neutron generator in the prior art

Method used

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  • Neutron generator

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Embodiment

[0019] Such as figure 1 As shown, the neutron generator of the present invention includes a cylindrical insulating tube wall 7 with a cavity structure inside, and one end face of the insulating tube wall 7 is sealed to form the installation substrate of the ion source, and the other end is used as a sealing port 8. A ring-shaped anode plate 2 is arranged on the base plate, and a coaxial trigger insulating block 4 and a cathode (1) are successively set in the ring-shaped anode plate 2 along the radial direction, and the ring-shaped anode plate 2 passes through a coaxial cylindrical The outlet metal grid 5 is connected to the plate-shaped anode plate 12, and the inner side of the insulating tube wall 7 is provided with an annular target 6 separated from the outlet metal grid 5, the cathode 1, the annular anode plate 2, the trigger electrode 3, and the trigger insulation block 4 and the outlet metal grid 5 constitute the main structure of the ion source, and are integrally fixed ...

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Abstract

The invention discloses a neutron generator which includes an insulating pipe wall. One end surface of the insulating pipe wall encloses to form an installation substrate of an ion source, and another end acts as an enclosed interface. The installation substrate is provided with a ring-shaped anode plate thereon. The ring-shaped anode plate is successively and radially sleeved with a triggering insulating block and a cathode which are co-axially arranged. The ring-shaped anode plate is connected to a plate-shaped anode plate through a co-axial cylindrical outlet metal mesh. The internal side of the insulating pipe wall is provided with a ring-shaped target which is separated from the outlet metal mesh. The neutron generator also includes a triggering electrode and a power supply system which are arranged at interval with the cathode. According to the invention, the neutron generator has a structure which uses radial lead out, maintains axial power discharge, metal ions remain distributed at an axis, most of the metal neutrons are lost on side walls, and since deturium-ions are distributed at borders and are under influence of lead-out electric field, a higher lead-out efficiency is delivered.

Description

technical field [0001] The invention relates to the field of neutron generators, in particular to a pulsed neutron generator based on a metal deuteride vacuum arc ion source. Background technique [0002] A neutron generator is a device that generates neutrons, and is used in oil exploration wells, weapon ignition, etc. Its main components include metal deuteride vacuum arc ion source, beam optics and tritium target. The basic principle is that the ion source generates deuterium ions first, and after being extracted by the beam optics, it hits the target, and the deuterium ions react with the tritium ions on the target to generate neutrons. According to the principle of vacuum arc discharge, the ion source will produce a variety of ions, including metal ions and deuterium ions in various valence states. Among them, metal ions are not the products we expect, not only will not participate in thermonuclear reactions to generate neutrons, but also increase the beam The current...

Claims

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Application Information

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IPC IPC(8): H05H3/06
CPCH05H3/06Y02E30/10
Inventor 郑乐龙继东董攀蓝朝晖刘飞翔李杰杨振刘尔祥陈德彪李天涛
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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