Compact proton energy spectrum measuring device

Abstract

The invention provides a compact proton energy spectrum measuring device, which solves the problems of low efficiency and risk of contacting pollutants when a stack detector is adopted to detect a proton energy spectrum in the prior art. The device comprises a wedge-shaped filter disc, a scintillator, an imaging lens and a detector which are sequentially and coaxially arranged along the proton emitting direction, the thickness of the thin edge of the wedge-shaped filter disc is 0.2 mm-2 mm, and the thickness of the thick edge of the wedge-shaped filter disc is 1.0 mm-10 mm; the imaging lens adopts an object space telecentric system; proton beams enter the wedge-shaped filter disc and enter the scintillator after being filtered by the energy spectrum of the wedge-shaped filter disc, visiblephotons are excited and enter the imaging lens, and the imaging lens images a spatial distribution image of the visible photons to an image enhancement target surface of the detector. The energies ofthe protons penetrating through different thickness positions of the wedge-shaped filter disc are different, so that the continuous energy spectrum information of the protons can be obtained throughthe wedge-shaped filter disc, and the efficient measurement of the proton energy spectrum is achieved.

Description

technical field [0001] The invention belongs to the field of laser fusion, relates to proton detection technology, in particular to a compact proton energy spectrum measurement device applied to nuclear fusion research. Background technique [0002] Fusion energy is a pollution-free clean energy, and countries all over the world are competing to invest a lot of manpower and material resources in the research and development of related technologies. However, the conditions for achieving fusion are extremely harsh, and the fuel needs to reach extreme high temperature and high pressure. At present, laser inertial confinement fusion and magnetic confinement fusion are the two most promising technical approaches to achieve this condition. [0003] In laser inertial confinement fusion, in order to achieve the "central hot spot" DH (DianHuo) condition of the fuel, countries all over the world have built or planned large-scale laser drive devices, for example: the NIF device that ha...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of low efficiency and risk of exposure to pollutants in the existing proton spectrum detection using stack detectors, the present invention provides a compact proton spectrum measurement device

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