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Multi-filament wide-beam electronic curtain

An electronic curtain, multi-filament technology, applied in the direction of electrical components, accelerators, etc., can solve the problem that the uniformity of the beam in the radiation area cannot be guaranteed, and achieve the effect of high current density

Inactive Publication Date: 2011-09-21
JIAXING ZHAOHONG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a multi-filament electronic curtain that can provide high current density and wide beam width to meet the requirements of various application fields because the uniformity of the beam in the radiation area in the prior art cannot be guaranteed.

Method used

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  • Multi-filament wide-beam electronic curtain
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  • Multi-filament wide-beam electronic curtain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Multi-filament wide-beam electronic curtains, such as Figures 1 to 4 As shown, it includes a control system, a power supply system 1, a water cooling system, a nitrogen supply system and a vacuum system 2. The power supply system 1 includes a high-voltage power supply 11, a head power supply 12 and an isolation transformer 13. The head power supply 12 passes through a high-voltage lead-in line 14 is connected with high-voltage ceramics 15, vacuum system 2 comprises electron gun 23, outer cylinder 29, 50 filaments 21, between electron gun 23 and outer cylinder 29 is vacuum chamber 20, and the lower side of electron gun 23 is provided with the flat second The grid 24, the second grid 24 is provided with a second grid hole 241, the titanium foil 26 and the accelerating pole 25 are provided directly below the second grid 24, and 55 parallel cooling copper grids 27 are arranged on the titanium foil 26 . Multi-filament wide-beam electron curtain, the energy is 80-300keV, th...

Embodiment 2

[0076] Multi-filament wide-beam electronic curtains, such as Figures 1 to 4 As shown, it includes a control system, a power supply system 1, a water cooling system, a nitrogen supply system and a vacuum system 2. The power supply system 1 includes a high-voltage power supply 11, a head power supply 12 and an isolation transformer 13. The head power supply 12 passes through a high-voltage lead-in line 14 is connected with high-voltage ceramics 15, vacuum system 2 comprises electron gun 23, outer cylinder 29, 101 filaments 21, between electron gun 23 and outer cylinder 29 is vacuum chamber 20, and the lower side of electron gun 23 is provided with the second plate shape. The grid 24, the second grid 24 is provided with a second grid hole 241, the titanium foil 26 and the accelerating pole 25 are provided directly below the second grid 24, and 203 parallel cooling copper grids 27 are provided on the titanium foil 26 .

[0077] The length of the filament 21 is 11 cm, and the fil...

Embodiment 3

[0090] Multi-filament wide-beam electronic curtains, such as Figures 1 to 4 As shown, it includes a control system, a power supply system 1, a water cooling system, a nitrogen supply system and a vacuum system 2. The power supply system 1 includes a high-voltage power supply 11, a head power supply 12 and an isolation transformer 13. The head power supply 12 passes through a high-voltage lead-in line 14 is connected with high-voltage ceramic 15, and vacuum system 2 comprises electron gun 23, outer cylinder body 29, 135 filaments 21, is vacuum chamber 20 between electron gun 23 and outer cylinder body 29, and the lower side of electron gun 23 is provided with the second plate shape. The grid 24, the second grid 24 is provided with a second grid hole 241, the titanium foil 26 and the accelerating pole 25 are provided directly below the second grid 24, and 423 parallel cooling copper grids 27 are provided on the titanium foil 26 .

[0091] Filament 21 length is 14cm, and filame...

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Abstract

The invention relates to a radiation processing and nuclear technology accelerator, disclosing a multi-filament wide-beam electronic curtain. The multi-filament wide-beam electronic curtain comprises a control system, a power supply system, a water cooling system, a nitrogen supply system and a vacuum system, wherein the power supply system comprises a high-voltage power supply, a head power supply and an isolation transformer; the head power supply is connected with high-voltage ceramics by a high-voltage inlead; the vacuum system comprises an electronic gun, an external barrel and filaments, wherein a vacuum cavity is formed between the electronic gun and the external barrel; the lower side of the electronic gun is provided with a second grid electrode of the flat plate shape; the second grid electrode is provided with a second grid aperture; a titanium foil and an acceleration electrode are arranged just below the second grid electrode; and the titanium foil is provided with a cooled copper grid. In the radiation processing and nuclear technology accelerator, the density of the filament is reasonably set to overcome the distribution unevenness of end beam current because of titanium foil dispersion; the second grid electrode is provided with the second grid aperture to reduce cut beams on the titanium foil copper grid; and an outer layer of shielding cover is also provided with a distribution target so as to monitor beam current distribution in real time to greatly improve the performance of the whole accelerator.

Description

technical field [0001] The invention relates to a radiation processing and nuclear technology accelerator, in particular to a multi-filament wide-beam electron curtain. Background technique [0002] Electronic curtains with an energy of 80-300keV and a width of 20-350cm are widely used in the field of radiation processing, such as surface coating curing, and new materials and components with special properties can be generated through cross-linking or cracking reactions generated during radiation. Industrial flue gas desulfurization, radiation disinfection, etc. Radiation processing has the advantages of energy saving, high economic benefits, and no pollution to the environment. Although there has been a rapid development abroad since the 1980s in radiation processing with electronic curtains, this field has not been widely developed in China, and its market is still very broad. The key to the development of this field is to develop an electronic curtain with good performa...

Claims

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Application Information

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IPC IPC(8): H05H7/00H05H7/06
Inventor 张华顺
Owner JIAXING ZHAOHONG SCI & TECH
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