System for driving micro-channel target to generate vortex gamma photon beams by ultra-strong laser

A laser-driven, gamma photon technology, applied in the field of ions, can solve problems such as experimental implementation difficulties, achieve high energy, small space size, and improve angular momentum conversion efficiency

Active Publication Date: 2020-12-11
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

However, most schemes use laser intensity at 10 21 W/cm 2 And above super strong vortex light as the driving source, based on the current development of laser techno

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  • System for driving micro-channel target to generate vortex gamma photon beams by ultra-strong laser
  • System for driving micro-channel target to generate vortex gamma photon beams by ultra-strong laser
  • System for driving micro-channel target to generate vortex gamma photon beams by ultra-strong laser

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Example Embodiment

[0043] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention may be implemented in many different ways as defined and covered by the claims.

[0044] The invention provides a system for generating a vortex gamma photon beam based on an ultra-intense laser-driven microchannel target based on the interaction of laser and plasma, the system includes a Gaussian laser generator, a microchannel target and an optical fan target; Both the channel target and the light fan target are set in the vacuum system;

[0045] The Gaussian laser generator generates a Gaussian laser, and the Gaussian laser is injected into the microchannel target along the axis of the microchannel target;

[0046] The Gaussian laser ionizes electrons on the target wall of the microchannel to form an electron beam with a vortex structure, and is accelerated under the action of the laser;

[0047] When the Gaussian laser is...

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Abstract

The invention provides a system for driving a micro-channel target to generate vortex gamma photon beams by ultra-strong laser. The system comprises a Gaussian laser generator, a micro-channel targetand a light fan target. The Gaussian laser generator generates Gaussian laser and emits the Gaussian laser into the micro-channel target along the axis of the micro-channel target; the Gaussian laserionizes electrons on the wall of the micro-channel target to form an electron beam with a vortex structure, and the electron beam is accelerated under the action of the laser; the Gaussian laser is irradiated to the light fan target perpendicular to the optical axis of incident laser and the axis of the micro-channel target when being transmitted to the tail end of the micro-channel target, and reflected laser with a vortex structure and angular momentum is formed. The reflected laser collides with an electron beam of a vortex structure in the micro-channel, and the electron beam is radiated under the action of a laser electric field to generate a vortex gamma photon beam. Through combination of the channel target and the light fan target, experimental research can be performed under existing laser technical conditions, a new direction is provided for people to know and control microscopic particles, and important practical and scientific research significance is achieved.

Description

technical field [0001] The invention belongs to the technical field of lasers and plasmas, and in particular relates to a system for generating vortex gamma photon beams by driving a microchannel target with an ultra-strong laser. Background technique [0002] X / γ-rays have been widely used in many fields since they were discovered, such as nuclear physics, laboratory astrophysics, plasma physics, radiation oncology, metal industry, etc. The γ-ray source based on laser-plasma interaction is different from the traditional accelerator radiation source. It has the advantages of short pulse width, high brightness and small size, and has important application prospects in basic scientific research, medical treatment, industry and other fields. Vortex gamma rays are an indispensable tool for investigating and simulating massive objects such as black holes or neutron stars under laboratory conditions. At the same time, by introducing the new degree of freedom of gamma photon angul...

Claims

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Application Information

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IPC IPC(8): H01S4/00
CPCH01S4/00
Inventor 余同普张昊鲁瑜赵杰胡艳婷
Owner NAT UNIV OF DEFENSE TECH
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