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Electronic pulse electrostatic time-domain compression device and method

A technology of electronic pulse and compression device, applied in the direction of discharge tube electron gun, etc., can solve the problems of low feasibility and inability to quickly control ultrafast electron diffractometers, etc.

Inactive Publication Date: 2013-11-06
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

Although the above methods have been proved to be feasible in theory and even some in engineering research, unfortunately, these methods are either because of the small feasibility of engineering implementation, or because they cannot There are always application limitations due to the relevant requirements of the application field of ultrafast diagnostic research based on the rapid control of ultrashort electronic pulses

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  • Electronic pulse electrostatic time-domain compression device and method
  • Electronic pulse electrostatic time-domain compression device and method
  • Electronic pulse electrostatic time-domain compression device and method

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Embodiment Construction

[0047] The dual-mode electronic pulse electrostatic time-domain compression prism is composed of an electrostatic field area formed by three electrified grids at a certain distance from each other. The first grid is applied with 0 potential to eliminate the influence of the electric field of the prism system on the front-end electronic pulse transmission system; the potentials of the second and third grids are respectively U 1 and U 2 , generally make U 1 >U 2 , and U 2 The setting is to make the entire electron pulse complete the U-shaped reflection movement in the prism system; the axial distance between the grids is D 1 and D 2 . When the above electrical structure parameters are set to meet certain conditions, the incident electron pulse at the entrance will experience a "reflective" trajectory in the prism system, and the electron trajectory exhibits dispersion characteristics related to its initial incident energy. In this way, the incoming electron pulse is compre...

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Abstract

The invention relates to an electronic pulse electrostatic time-domain compression device and a method. The electronic pulse electrostatic time-domain compression device comprises a power supply and also comprises a first power applied grid mesh, a second power applied grid mesh and a third power applied grid mesh. Power is supplied for the first power applied grid mesh, the second power applied grid mesh and the third power applied grid mesh through the power supply. The electronic pulse electrostatic time-domain compression device is stable, easy to adjust and high in tunability and can be double compressed.

Description

technical field [0001] The invention belongs to the field of ultrafast diagnosis, and relates to an electron optical dispersion prism, in particular to an electronic pulse electrostatic time domain compression device and method. Background technique [0002] Research on time-resolved ultrafast phenomena is being carried out in many fields of basic research and high-tech research. Electron optical diagnostic technology based on the rapid control of ultrashort electron pulses has become an important research method in this field, and ultrafast electron diffractometers are such A typical representative of technology. In the ultrafast electron diffractometer, the electron pulse emitted by the photocathode through the external photoelectric effect is regarded as the core of the whole system, and its parameters such as the pulse width and the number of electrons in a single pulse determine the breadth of the application research of the ultrafast electron diffractometer technology ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J3/02
Inventor 王超田进寿赵卫白永林卢裕王俊锋
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI