Laser-differential-confocal-technology-based method and device for comprehensively measuring morphological performance parameters of nuclear fusion pellet

Abstract

The invention, which belongs to the technical field of confocal microscopic imaging, spectral detection and laser inertial confinement nuclear fusion, discloses a laser-differential-confocal-technology-based method and device for comprehensively measuring morphological performance parameters of a nuclear fusion pellet. According to the invention, on the basis of combination of the laser differential confocal technology with the Raman spectroscopy detection technology, precision tomography focusing fixing is carried out on inner and outer surfaces of a laser fusion pellet shell layer by using the laser differential confocal technology; spectral excitation detection is carried out on the shell and interface of the pellet by using the Raman spectroscopy detection technology; and on the basisof the orthogonal rotation driving technology, three-dimensional rotation driving is performed on the pellet to obtain three-dimensional shape parameters of the inner and outer surfaces of the pelletand shell / interface performance distribution parameters, thereby realizing comprehensive measurement of the morphological performance parameters of the nuclear fusion pellet. Therefore, the data baseand detection way are provided for the laser inertial confinement nuclear fusion simulation experiment research, pellet preparation process research and pellet screening. The laser-differential-confocal-technology-based method and device have the broad application prospects in the fields of laser inertial confinement nuclear fusion, high energy physics and precision detection.

Description

technical field [0001] The invention belongs to the technical field of confocal microscopic imaging, laser inertial confinement nuclear fusion and precision photoelectric measurement, combines laser differential confocal technology with Raman spectrum detection technology, and relates to a synthesis of shape and performance parameters of laser differential confocal nuclear fusion target pellets The measurement method and device have broad application prospects in the fields of laser inertial confinement nuclear fusion, high-energy physics and precision detection. [0002] technical background [0003] Laser inertial confinement fusion (ICF) is an important means of artificially simulating nuclear explosions and celestial body evolution, and it is also an important direction for human beings to explore future clean energy, so it has very important scientific research and practical significance. In the laser inertial confinement fusion experiment, the hollow laser fusion target...

AI Technical Summary

Problems solved by technology

[0006] 1) The internal parameters of the target capsule cannot be measured non-destructively. The existing method requires destructive cutting of the target capsule. After the measurement, the target capsule is destroyed and cannot be applied to the next step of process processing or target shooting experiment;

[0007] 2) Insufficient comprehensive measurement capability, each instrument can only measure one or two parameters, and the comprehensive parameter measurement of the target pellet needs to be repeatedly installed and adjusted on different instruments, which is inefficient and the value reference is not uniform;

[0008] 3) The measurement process of geometric shape and physical property parameters is separated, which cannot fully reveal the phenomenon and law of structural changes occurring in the process of pellet preparation and nuclear fusion reaction;

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