Method and device for comprehensive measurement of shape and performance parameters of laser confocal nuclear fusion target pellet

Abstract

The invention, which belongs to the technical field of confocal microscopic imaging, atomic force microscopic imaging and laser inertial confinement nuclear fusion, discloses a laser-differential-confocal-technology-based atomic force nuclear fusion pellet surface profile measuring method and device. According to the invention, on the basis of combination of the laser differential confocal technology with the atomic force probe scanning detection technology, , precision tomography focusing fixing is carried out on the laser fusion pellet surface and spherical center to obtain the outer diameter of the pellet; lateral high-resolution scanning is carried out on the surface contour of the pellet by using the atomic force probe; with the laser differential confocal technology, the axial position of the atomic force probe is monitored to realize high-resolution detection of the surface contour of the pellet; and then with the orthogonal rotary drive technology, three-dimensional rotary driving is performed on the pellet to obtain surface three-dimensional height distribution of the pellet, thereby realizing high-resolution detection of the surface contour of the nuclear fusion pellet. Therefore, the laser-differential-confocal-technology-based atomic force nuclear fusion pellet surface profile measuring method and device have the broad application prospects in fields of laser inertial confinement nuclear fusion, high energy physics and precision detection.

Description

technical field [0001] The invention belongs to the technical fields of confocal microscopic imaging, laser inertial confinement nuclear fusion and precise photoelectric measurement, combines laser confocal technology and Raman spectrum detection technology, and relates to a method and device for comprehensive measurement of morphological performance parameters of laser confocal nuclear fusion target pellets , has 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 method for artificially simulating nuclear explosions and celestial evolution, and it is also an important direction for mankind to explore clean energy in the future. Therefore, it has very important scientific research and practical significance. In the laser inertial confinement nuclear fusion experiment, a hollow laser fusion target fille...

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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