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Device for generating X rays by laser irradiation of solid cone target

A technology of laser irradiation and solid cone, which is applied in the direction of phonon exciters, electrical components, circuits, etc., to achieve the effects of improving conversion efficiency, laser-X-ray conversion efficiency, and laser power density

Inactive Publication Date: 2011-08-31
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This makes it convenient to introduce a beam of X-rays for diagnosis due to the limitation of space arrangement in the experiment.

Method used

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  • Device for generating X rays by laser irradiation of solid cone target
  • Device for generating X rays by laser irradiation of solid cone target
  • Device for generating X rays by laser irradiation of solid cone target

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing, the present invention will be further described:

[0039] like figure 1 , a device for generating X-rays by irradiating a solid conical target with laser light, comprising a laser 1, a vacuum chamber 2, a driving laser inlet 4 arranged on the vacuum chamber 2 and matched with the laser 1, and a focusing mirror installed in the vacuum chamber 2 5. A target assembly and a device for receiving X-rays, characterized in that:

[0040] The target assembly is composed of a solid cone target 601 and a bracket 602 for fixing the solid cone target, and the bottom surface of the solid cone target 601 is located on the side close to the driving laser entrance 4, and the cone tip of the solid cone target 601 is located on the side close to the device receiving X-rays. Laser 1 power density 10 17 ~10 19 W / cm 2 , the focal spot is smaller than the area of ​​the bottom surface of the solid cone target 601 .

[0041] Wherein, the focusi...

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Abstract

The invention discloses a device for generating X rays by the laser irradiation of solid cone target. The device comprises a laser (1), a vacuum chamber (2), a driving laser inlet (4), a target component and an apparatus, wherein the driving laser inlet (4) is formed on the vacuum chamber (2), and is in fit with the laser (1); the target component is arranged in the vacuum chamber (2); and the apparatus receives the X rays. The device is characterized in that: the target component consists of the solid cone target (601) and a bracket (602) for fixing the solid cone target; and the cone bottom surface of the solid cone target (601) is positioned on one side close to the driving laser inlet (4), and the cone apex of the solid cone target (601) is positioned on the side close to the apparatus for receiving the X rays; the apparatus for receiving the X rays consists of an X ray detector (701), a bent crystal (702), a pinhole (703) and a sample cavity (704); and a plurality of X rays are simultaneously led out by the bent crystal (702) and the pinhole (703) to diagnose a sample in the sample cavity (704).

Description

technical field [0001] The invention is a device for generating X-rays by laser irradiation. Background technique [0002] The X-ray source generated by the interaction between laser and solid has the characteristics of low cost, short pulse width, high brightness, good quasi-monopotency, and easy synchronization with laser loading. Ultrafast processes in hot-dense matter have great prospects, but how to increase the brightness of the X-ray source, reduce the size of the source, and improve the signal-to-noise ratio of the source to enhance its diagnostic capability is the current research focus. [0003] At present, the commonly used scheme is to irradiate the solid planar foil target with laser (refer to the literature "Optimized Kαx-ray flashes from femtosecond-laser-irradiated foils", PHYSICAL REVIEW E80, 026404, 2009), and the laser rapidly ionizes the surface atoms of the planar foil target to form Plasma, the interaction between plasma and laser produces high-energy ...

Claims

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Application Information

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IPC IPC(8): H01S4/00
Inventor 李晓亚王加祥祝文军叶雁李俊余勇
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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