Compact proton energy spectrum measuring device

A measuring device and compact technology, applied in the field of laser fusion, can solve the problems of low efficiency and contact with pollutants, and achieve high fidelity, consistent light receiving solid angle, and good effect of collecting beam direction consistency

Pending Publication Date: 2020-11-17
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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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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  • Compact proton energy spectrum measuring device
  • Compact proton energy spectrum measuring device
  • Compact proton energy spectrum measuring device

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Embodiment Construction

[0057] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] Such as figure 1 As shown, a compact proton spectroscopy measurement device based on a wedge-shaped filter and a scintillator, including a wedge-shaped filter 1, a scintillator 2, an imaging lens, and a detector arranged coaxially along the proton emission direction; the proton beam incident large The area wedge filter 1, after being filtered by the energy spectrum of the wedge filter 1, enters the scintillator 2 to excite visible photons, and then the imaging lens images the spatial distribution information (image) of the excited visible photons to the detector for image intensification Target surface 12.

[0059] The thickness of the thin side of the wedge-shaped filter 1 is 0.2 mm to 2 mm, and the thickness of the thick side is 1.0 mm to 10 mm, and the thickness of the thin side is smaller than the thickness ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/36
CPCG01T1/362
Inventor 闫亚东刘霞刚高炜李奇王军宁何俊华
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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