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High-precision low-current electron beam adjusting device and method

A high-precision, electron beam technology used in circuits, discharge tubes, electrical components, etc. to improve stability and current flow

Pending Publication Date: 2021-08-13
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional physical, step-by-step, and long-chain quantitative traceability methods can no longer meet this large-scale ubiquitous demand. Quantum traceability technology and networked online traceability systems that can be reproduced everywhere have become inevitable requirements.

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  • High-precision low-current electron beam adjusting device and method
  • High-precision low-current electron beam adjusting device and method
  • High-precision low-current electron beam adjusting device and method

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Embodiment Construction

[0039] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not limiting of the present invention. In the figures, the same units / elements are given the same reference numerals.

[0040] Unless otherwise stated, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that the terms defined by commonly used dictionaries should be understood as having consistent meanings in the context of their related fields, and should not be understood as idealiz...

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Abstract

The invention discloses a high-precision low-current electron beam adjusting device and method, which belong to the technical field of electrical measurement quantization. The system comprises a magnetic field regulation and control unit, a beam scraping unit and an observation unit, wherein themagnetic field regulation and control unit is used for setting the size of the electrifying current of an electron source, determining the longitudinal magnetic field distribution according to the size of the electrifying current of the electron source, changing the longitudinal magnetic field distribution by adjusting the electrifying current of the electron source, and obtaining a defocusing regulation and control electron beam current; the beam scraping unit is used for performing beam scraping on the defocusing regulation and control electron beam to obtain a target electron beam; and the observation unit captures a beam spot image of the target electron beam through the fluorescent screen, obtains beam spot image information, determines the quality of the target electron beam according to the beam spot image information, and quantizes the current according to the quality of the target electron beam. A particle accelerator technology is introduced, the limitation of a traditional current quantization mode based on the single electron tunnel effect is broken through, the current intensity is greatly improved, and meanwhile the stability of electron beam current output by the electron source is improved.

Description

technical field [0001] The present invention relates to the technical field of electrical measurement and quantization, and more specifically, relates to a high-precision weak current electron beam adjustment device and method. Background technique [0002] As the source of the value of the national measurement system, the measurement benchmark is an important strategic resource of the country. The improvement of its capabilities will directly drive the improvement of the service capabilities of the national metrology system, providing more accurate measurement technology for all walks of life, thereby promoting industrial upgrading and high-quality development, and promoting the improvement of product quality. Information perception in the power Internet of Things relies on smart sensors, and its accurate and reliable values ​​are the basis of information applications. However, the traditional physical, step-by-step, and long-chain quantitative traceability methods can no ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J37/21H01J37/147
CPCH01J37/147H01J37/21
Inventor 李小飞胡浩亮周峰黄俊昌潘瑞余也凤万鹏聂琪
Owner CHINA ELECTRIC POWER RES INST