A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR

A method for diagnosing implosion symmetry in inertial confinement fusion (ICF) with wide-angle velocity interferometer system for any reflector (VISAR)was proposed in this study. The method considers the object-image relationship of the wide-angle VISAR, characteristics of the fringe pattern, and t...

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Main Authors: Wu Yuji, Guan Zanyang, Zhang Qing, Jing Longfei, Ren Kuan, Liang Juxi, Chen Xudan, Li Yulong, Wang Feng
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:Nuclear Fusion
Subjects:
Online Access:https://doi.org/10.1088/1741-4326/adaa87
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author Wu Yuji
Guan Zanyang
Zhang Qing
Jing Longfei
Ren Kuan
Liang Juxi
Chen Xudan
Li Yulong
Wang Feng
author_facet Wu Yuji
Guan Zanyang
Zhang Qing
Jing Longfei
Ren Kuan
Liang Juxi
Chen Xudan
Li Yulong
Wang Feng
author_sort Wu Yuji
collection DOAJ
description A method for diagnosing implosion symmetry in inertial confinement fusion (ICF) with wide-angle velocity interferometer system for any reflector (VISAR)was proposed in this study. The method considers the object-image relationship of the wide-angle VISAR, characteristics of the fringe pattern, and the symmetry theory; the fringe pattern must be continuous in space to apply this method. Hydrodynamic calculations showed that the radiation-temperature distribution on the surface of capsule was spatially continuous, indirectly proving the applicability of the method. The evolution of P2 asymmetry at different positions of the capsule was examined through an eight-beam laser indirect-drive experiment at a 10 kJ-level laser facility, proving the feasibility of the method. The application of wide-angle VISAR for the diagnosis of implosion symmetry in ICF was more accurate and intuitive and demonstrated high spatiotemporal resolution and wide detection range. This method can provide reference data for the micro-mechanism study of hydrodynamic instability and radiation-driven asymmetry, as well as support for optimizing the implosion compression process to achieve efficient and stable ignition.
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institution Kabale University
issn 0029-5515
language English
publishDate 2025-01-01
publisher IOP Publishing
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series Nuclear Fusion
spelling doaj-art-d9c25287c6fe4768aa2f0377a09a18d92025-01-24T08:57:38ZengIOP PublishingNuclear Fusion0029-55152025-01-0165202604710.1088/1741-4326/adaa87A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISARWu Yuji0Guan Zanyang1Zhang Qing2https://orcid.org/0009-0003-7260-9704Jing Longfei3Ren Kuan4Liang Juxi5Chen Xudan6https://orcid.org/0000-0003-1350-8850Li Yulong7Wang Feng8School of Nuclear Engineering, Rocket Force University of Engineering , Xi’an 710025, ChinaLaser Fusion Research Center, Chinese Academy of Engineering Physics , Mianyang 621900, ChinaSchool of Nuclear Engineering, Rocket Force University of Engineering , Xi’an 710025, ChinaLaser Fusion Research Center, Chinese Academy of Engineering Physics , Mianyang 621900, ChinaLaser Fusion Research Center, Chinese Academy of Engineering Physics , Mianyang 621900, ChinaLaser Fusion Research Center, Chinese Academy of Engineering Physics , Mianyang 621900, ChinaSchool of Nuclear Engineering, Rocket Force University of Engineering , Xi’an 710025, ChinaLaser Fusion Research Center, Chinese Academy of Engineering Physics , Mianyang 621900, ChinaLaser Fusion Research Center, Chinese Academy of Engineering Physics , Mianyang 621900, ChinaA method for diagnosing implosion symmetry in inertial confinement fusion (ICF) with wide-angle velocity interferometer system for any reflector (VISAR)was proposed in this study. The method considers the object-image relationship of the wide-angle VISAR, characteristics of the fringe pattern, and the symmetry theory; the fringe pattern must be continuous in space to apply this method. Hydrodynamic calculations showed that the radiation-temperature distribution on the surface of capsule was spatially continuous, indirectly proving the applicability of the method. The evolution of P2 asymmetry at different positions of the capsule was examined through an eight-beam laser indirect-drive experiment at a 10 kJ-level laser facility, proving the feasibility of the method. The application of wide-angle VISAR for the diagnosis of implosion symmetry in ICF was more accurate and intuitive and demonstrated high spatiotemporal resolution and wide detection range. This method can provide reference data for the micro-mechanism study of hydrodynamic instability and radiation-driven asymmetry, as well as support for optimizing the implosion compression process to achieve efficient and stable ignition.https://doi.org/10.1088/1741-4326/adaa87VISARwide-angle diagnosisimplosion symmetryLegendre expansioninertial confinement fusion
spellingShingle Wu Yuji
Guan Zanyang
Zhang Qing
Jing Longfei
Ren Kuan
Liang Juxi
Chen Xudan
Li Yulong
Wang Feng
A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR
Nuclear Fusion
VISAR
wide-angle diagnosis
implosion symmetry
Legendre expansion
inertial confinement fusion
title A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR
title_full A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR
title_fullStr A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR
title_full_unstemmed A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR
title_short A method for diagnosing the implosion symmetry in inertial confinement fusion with wide-angle VISAR
title_sort method for diagnosing the implosion symmetry in inertial confinement fusion with wide angle visar
topic VISAR
wide-angle diagnosis
implosion symmetry
Legendre expansion
inertial confinement fusion
url https://doi.org/10.1088/1741-4326/adaa87
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