Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A short magnetic focusing device and method for transverse compression of ultrafast electron pulses

An electronic pulse and lateral compression technology, which is applied in the direction of cathode ray tube/electron beam tube, cathode ray/electron beam tube shell/container, circuit, etc., can solve poor cooling effect, difficult coaxiality adjustment, high manufacturing cost, etc. problem, achieve the effect of solving the coaxiality problem, the axiality can fine-tune the clearance of the pole piece, and improve the working stability

Active Publication Date: 2017-12-05
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the technical problems of poor cooling effect, difficult coaxial adjustment and high manufacturing cost of the existing pulse transverse compression device, the present invention provides a short magnetic focusing device for ultrafast electronic pulse transverse compression

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A short magnetic focusing device and method for transverse compression of ultrafast electron pulses
  • A short magnetic focusing device and method for transverse compression of ultrafast electron pulses
  • A short magnetic focusing device and method for transverse compression of ultrafast electron pulses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The invention provides a short magnetic focusing device capable of cooling and adjusting the magnetic gap width and coaxiality at the same time. By adjusting the magnetic gap width, excitation current and coaxiality, the transverse focusing of ultrafast electron pulses is realized.

[0047] see figure 1 and figure 2 , the structure of the preferred embodiment of the present invention includes a coaxially arranged tubular bobbin 1 and a tubular inner magnetic shielding shell 2; the two end faces of the bobbin 1 are each provided with an annular baffle 3, and the diameter of the inner circle of the baffle is equal to The diameter of the spool and the outer diameter of the baffle are equal to the diameter of the inner magnetic shielding shell; the inner magnetic shielding shell 2, the spool 1 and the two baffles 3 together form an annular cavity, and a coil wound on the spool is arranged in the cavity 4;

[0048] The short magnetic focusing device also includes two oute...

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

No PUM Login to View More

Abstract

The present invention belongs to the ultrafast diagnostic technique field and relates to a short magnetic focusing device and method for the transversal compression of ultrafast electronic pulses. The short magnetic focusing device comprises a tubular linear shaft and a tubular inner magnetic shielding shell which are arranged coaxially; the short magnetic focusing device further comprises two outer magnetic shielding shells, wherein the first outer magnetic shielding shell and the second outer magnetic shielding shell are axially buckled to the outer side of the inner magnetic shielding shell along the axial direction of the linear shaft; the center of the first outer magnetic shielding shell is coaxially provided with a first pole shoe extending into the linear shaft; and the center of the second outer magnetic shield shell is coaxially provided with a second pole shoe extending into the linear shaft; a magnetic gap is formed between the first pole shoe and the second pole shoe; and a buckling position of the outer magnetic shielding shells is provided with a magnetic gap adjustment device; the outer end surfaces of the outer magnetic shielding shells are provided with coaxial adjustment devices; and cooling systems are arranged between the inner end surfaces of the outer magnetic shielding shells and corresponding baffles. The short magnetic focusing device and method of the invention have the advantages of effective cooling of coils, fine adjustment of coaxiality, fine adjustment of the gap of the pole shoes, and long-time stable work.

Description

technical field [0001] The invention belongs to the technical field of ultrafast diagnosis, and relates to a short magnetic focusing device and method for transversely compressing ultrafast electron pulses. Background technique [0002] Human beings' understanding of the natural world is getting deeper and deeper into the microscopic world. The most essential processes that reflect the appearance of the material world all occur inside molecules or atoms, and their corresponding time scales are all on the order of picoseconds, femtoseconds or even attoseconds (called ultrafast processes), which can be described as "everything changes". The in-depth understanding of these ultra-fast processes does not require the use of diagnostic tools with ultra-high spatio-temporal resolution to make up for the lack of human eye resolution (1 / 24 second & 0.1 mm). Ultrafast electron diffraction (UED), ultrafast electron crystallography (UEC), ultrafast electron microscopy (UEM) and streak c...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/02H01J29/86
CPCH01J29/02H01J29/86
Inventor 田进寿罗端惠丹丹王兴王俊锋温文龙
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com