Laser Plasmon Resonance X Source

Abstract

The invention discloses a laser plasma resonance X-ray source which comprises a bracket, an accelerator capillary tube, a wiggler capillary tube, a gas, a high-voltage discharging system, a laser device and a seed electron beam, wherein the accelerator capillary tube and the wiggler capillary tube are connected in the bracket in series; central axes of the through holes of the accelerator capillary tube and the wiggler capillary tube are parallel to one another, but not superposed; the gas is pre-inflated into the accelerator capillary tube and the wiggler capillary tube through an inflatable duct; the high-voltage discharging system is loaded at the two ends of each of the accelerator capillary tube and the wiggler capillary tube by virtue of positive and negative electrodes; plasma channels are produced by discharge ionized gas; laser pulses output by the laser device are continuously guided in plasma channels of the accelerator capillary tube and the wiggler capillary tube to produce air bubbles; the seed electron beam along with the laser pulses enter the air bubbles for being accelerated and resonated to produce X-rays. The laser plasma resonance X-ray source has the characteristics of a simple structure, convenience in operation, and high X-ray radiation efficiency.

Description

technical field [0001] The invention relates to the field of laser wake field acceleration and synchrotron radiation light sources, in particular to a laser plasma resonance X light source. Background technique [0002] Since the plasma itself is an ionized quasi-neutral medium, it can carry an accelerating electric field several orders of magnitude larger than the solid medium of a traditional radio frequency accelerator. For example, when the plasma electron density is 10 18 cm -3 When , the electric field is about 1GV / cm, and it increases with the increase of electron density. Therefore, a new generation of compact and relatively inexpensive miniaturized electron accelerators can be built by using the interaction of ultra-intense and ultra-short laser pulses with plasma waves, and high-quality electron beams with energy up to several GeV have been realized in experiments. One of the important applications of such electron beams is the generation of X-ray sources by sync...

AI Technical Summary

Problems solved by technology

Traditional magnetic undulators are large in size and weight, which is inconsistent with miniaturization; the cavitation bubbles generated in the laser wake field acceleration can be used as plasma wigglers for electronic oscillations at the same time, but the electronic oscillation amplitude is generally small, and the oscillation Period increases significantly with increasing electron energy or decreasing plasma density, difficult to use for higher energy electron beams, and radiated photon number efficiency is low

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