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First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGⅢ laser facility

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Matter and Radiation at Extremes 2017年第2期2卷 77-86页

作者： Yaohua Chen Zhichao Li Xufei Xie Chunyang Zheng Chuanlei Zhai Liang Hao Dong Yang Wenyi Huo Guoli Ren Jie Liu Xiaoshi Peng Tao Xu Yulong Li Sanwei Li Zhiwen Yang Liang Guo Lifei Hou Yonggang Liu Huiyue Wei Xiangming Liu Weiyi Cha Yukun Li Keli Deng Zheng Yuan Xiayu Zhan Haijun Zhang baibin jiang Wei Zhang Kai Du Xuewei Deng Yongkun Ding Xiaofeng Wei Wanguo Zheng Xiaodong Chen Xiantu He Ke Lan Institute of Applied Physics and Computational Mathematics Beijing100088China Research Center of Laser Fusion China Academy of Engineering PhysicsMianyang621900China Center for Applied Physics and Technology Peking UniversityBeijing100871China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai200240China

We present our recent laser-plasmas instability(LPI)comparison experiment at the SGIII laser facility between the spherical and cylindrical *** kinds of filling are considered:vacuum,gas-filling with or without a capsule inside.A spherical hohlraum of 3.6 mm in diameter,and a cylindrical hohlraum of 2.4 mm?4.3 mm are *** capsule diameter is 0.96 mm.A flat-top laser pulse with 3 ns duration and up to 92.73 kJ energy is *** experiment has shown that the LPI level in the spherical hohlraum is close to that of the outer beam in the cylindrical hohlraum,while much lower than that of the inner *** experiment is further simulated by using our 2-dimensional radiation hydrodynamic code LARED-Integration,and the laser back-scattering fraction and the stimulated Raman scatter(SRS)spectrum are post-processed by the high efficiency code of laser interaction with plasmas *** to the simulation,the plasma waves are strongly damped and the SRS is mainly developed at the plasma conditions of electron density from 0.08 n_(c) to 0.1 n_(c) and electron temperature from 1.5 keV to 2.0 keV inside the ***,obvious differences between the simulation and experiment are found,such as that the SRS back-scattering is underestimated,and the numerical SRS spectrum peaks at a larger wavelength and at a later time than the *** dif-ferences indicate that the development of a 3D radiation hydrodynamic code,with more accurate physics models,is mandatory for spherical hohlraum study.

关键词： Laser-plasmas interactions Spherical hohlraum Stimulated Raman scattering Stimulated Brillouin scattering

First demonstration of improving laser propagation inside the spherical hohlraums by using the cylindrical laser entrance hole

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Matter and Radiation at Extremes 2016年第1期1卷 2-7页

作者： Wenyi Huo Zhichao Li Dong Yang Ke Lan Jie Liu Guoli Ren Sanwei Li Zhiwen Yang Liang Guo Lifei Hou Xuefei Xie Yukun Li Keli Deng Zheng Yuan Xiayu Zhan Guanghui Yuan Haijun Zhang baibin jiang Lizhen Huang Kai Du Runchang Zhao Ping Li Wei Wang Jingqin Su Yongkun Ding Xiantu He Weiyan Zhang Institute of Applied Physics and Computational Mathematics Beijing 100088China Research Center of Laser Fusion Chinese Academy of Engineering PhysicsMianyang 621900China Center for Applied Physics and Technology Peking UniversityBeijing 100871China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China China Academy of Engineering Physics Mianyang 621900China

The octahedral spherical hohlraums have natural superiority in maintaining high radiation symmetry during the entire capsule implosion process in indirect drive inertial confinement ***,in contrast to the cylindrical hohlraums,the narrow space between the laser beams and the spherical hohlraum wall is usually *** this Letter,we address this crucial issue and report our experimental work conducted on the SGIII-prototype laser facility which unambiguously demonstrates that a simple design of cylindrical laser entrance hole(LEH)can dramatically improve the laser propagation inside the spherical *** addition,the laser beam deflection in the hohlraum is observed for the first time in the *** 2-dimensional simulation results also verify qualitatively the advantages of the spherical hohlraums with cylindrical *** results imply the prospect of adopting the cylindrical LEHs in future spherical ignition hohlraum design.

关键词： Spherical hohlraum Laser propagation Cylindrical laser entrance hole Laser spot movement

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微切削力对快点火Au锥丝靶成型的影响

强激光与粒子束 2015年第9期27卷 92-95页

作者：蒋柏斌李国杜凯韦建军童维超袁光辉杨洪四川大学原子与分子物理研究所成都610065 中国工程物理研究院激光聚变研究中心四川绵阳621900

为解决快点火分解物理研究中锥丝靶的整体成型问题,基于超精密车削技术,提出了制备无缝、无胶锥丝靶的方法。通过建立的Au丝超精密切削成型过程中的微切削力模型,研究了相关工艺条件下微切削力对锥丝靶成型的影响。采用有限元分析方法... 详细信息

为解决快点火分解物理研究中锥丝靶的整体成型问题,基于超精密车削技术,提出了制备无缝、无胶锥丝靶的方法。通过建立的Au丝超精密切削成型过程中的微切削力模型,研究了相关工艺条件下微切削力对锥丝靶成型的影响。采用有限元分析方法和实验验证手段研究多种参数Au丝的切削变形问题,获得了微切削力条件下Au丝的变形规律。研究结果表明:微切削力对丝径10μm附近锥丝靶的成型影响较大,对丝径更大的锥丝靶则无明显影响。

关键词：惯性约束聚变快点火锥丝靶超精密车削切削力

Determination of laser entrance hole size for ignition-scale octahedral spherical hohlraums

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Matter and Radiation at Extremes 2022年第6期7卷 41-49页

作者： Yao-Hua Chen Zhichao Li Hui Cao Kaiqiang Pan Sanwei Li Xufei Xie Bo Deng Qiangqiang Wang Zhurong Cao Lifei Hou Xingsen Che Pin Yang Yingjie Li Xiaoan He Tao Xu Yonggang Liu Yulong Li Xiangming Liu Haijun Zhang Wei Zhang baibin jiang Jun Xie Wei Zhou Xiaoxia Huang Wen Yi Huo Guoli Ren Kai Li Xudeng Hang Shu Li Chuanlei Zhai Jie Liu Shiyang Zou Yongkun Ding Ke Lan Institute of Applied Physics and Computational Mathematics Beijing 100094China Research Center of Laser Fusion China Academy of Engineering PhysicsMianyang 621900China Graduate School China Academy of Engineering PhysicsBeijingChina HEDPS Center for Applied Physics and Technologyand College of EngineeringPeking UniversityBeijing 100871China

A recently proposed octahedral spherical hohlraum with six laser entrance holes(LEHs)is an attractive concept for an upgraded laser facility aiming at a predictable and reproducible fusion gain with a simple target ***,with the laser energies available at present,LEH size can be a critical *** to the uncertainties in simulation results,the LEH size should be determined on the basis of experimental ***,determination of LEH size of an ignition target at a small-scale laser facility poses *** this paper,we propose to use the prepulse of an ignition pulse to determine the LEH size for ignition-scale hohlraums via LEH closure behavior,and we present convincing evidence from multiple diagnostics at the SGIII facility with ignition-scale hohlraum,laser prepulse,and laser beam *** LEH closure observed in our experiment is in agreement with data from the National Ignition *** total LEH area of the octahedral hohlraum is found to be very close to that of a cylindrical hohlraum,thus successfully demonstrating the feasibility of the octahedral hohlraum in terms of laser energy,which is crucially important for sizing an ignition-scale octahedrally configured laser *** work provides a novel way to determine the LEH size of an ignition target at a small-scale laser facility,and it can be applied to other hohlraum configurations for the indirect drive approach.

关键词： laser size spherical

Corrigendum to“First demonstration of improving laser propagation inside the spherical hohlraums by using the cylindrical laser entrance hole”[Matter Radiation Extremes 1(1)(2016)2-7]

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Matter and Radiation at Extremes 2016年第2期1卷 133-133页

Corrigendum Text:On page 2 of this letter,there is a misprint in the *** unit of the geometrical dimension of the spherical hohlraums on this page should always be“mm”rather than“mm”,*** the second paragraph,“…with 800 J per beam at 0.35 mm…”should be“…with 800 J per beam at 0.35 mm…”,“The slit of 400 mm width is parallel…”should be“The slit of 400 mm width is parallel…”,“The laser focal diameter is about 500 mm…”should be“The laser focal diameter is about 500 mm…”;in the third paragraph,“…we take 850 mm as the radius…”should be“…we take 850 mm as the radius…”,“The LEH radius R_(L) is 400 mm…”should be“The LEH radius R_(L) is 400 mm…”,“…the radius of the cylindrical LEH outer ring is taken as 1.5 R_(L)=600 mm”should be“…the radius of the cylindrical LEH outer ring is taken as 1.5 R_(L)=600 mm”.This mistake does not affect any of the main results of the original letter.

关键词： laser cylindrical radius

An Unusual 1D Chain Compound Based on Wells-Dawson Polyanions and {Cu2(2,' 2-bipy)2(pz)(gly)}26+ Complexes

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An Unusual 1D Chain Compound Based on Wells-Dawson Polyanion...

Synthesis and Characterization of one Novel 1D Compound Based on Keggin-type Polyoxometalates and Potassium-sulfanilamide Complex Subunits

中国化学会第四届全国多酸化学学术研讨会

作者： Yanglei Xu,baibin Zhou~*,Zhanhua Su,Yang Yu,jiang Wu Key Laboratory of synthesis of functional materials and green catalysis Colleges of Heilongjiang Province,Harbin Normal University,Harbin,150025

An unusual organic-inorganic hybrid compound,(Cu(2,2’-bipy)(pz)(gly)}PWO, (bipy=bipyridine,pz=pyrazine,gly=glycine)(1) has been hydrothermally synthesized and characterized by single crystal X-ray *** 1 crystallizes in Monoclinic spacegroup P-n with a=13.4789(13)A,b=22.551(2)A,c=16.4302(16)A,α=90°,β=104.6(10)°,γ=90.00°,V=4832.6(8)A,R1(I>

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Synthesis and Characterization of one Novel 1D Compound Base...

中国化学会第四届全国多酸化学学术研讨会

作者： jiang Wu,Zhanhua Su,Yang Yu,Yanglei Xu,baibin Zhou~* Key Laboratory of synthesis of functional materials and green catalysis Colleges of Heilongjiang Province,Harbin Normal University,Harbin,150025

One novel compound based on Keggin-type polyoxometalates and potassium-sulfanilamide coordination complexes,[{K(CHNOS)(HO)}(SiWO)]·2HO·10HO(1),has been synthesized and characterized by elemental analyses,IR,TG analyses,and single-crystal X-ray *** 1 composed of the[a-Si W O]building blocks,which are linked to three others to form a 1D chain by

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合成化合物动物体内抗肿瘤实验方法研究进展

化学通报 2015年第8期78卷 681-692页

作者：王路左春洋朱江王振宇于凯周百斌哈尔滨工业大学生物化工系哈尔滨150090 哈尔滨医科大学附属第一医院哈尔滨150001 哈尔滨师范大学功能材料的设计合成与绿色催化黑龙江省高校重点实验室哈尔滨150025

进行了动物体内抗肿瘤活性研究的多为天然药物,但其来源有限;虽然用于抗肿瘤研究的合成化合物种类较多,但对于其在动物体内抗肿瘤研究又相对偏少,所以,合成化合物抗肿瘤体内研究已经成为研究热点之一。本文对合成化合物抗肿瘤作用机制... 详细信息

进行了动物体内抗肿瘤活性研究的多为天然药物,但其来源有限;虽然用于抗肿瘤研究的合成化合物种类较多,但对于其在动物体内抗肿瘤研究又相对偏少,所以,合成化合物抗肿瘤体内研究已经成为研究热点之一。本文对合成化合物抗肿瘤作用机制、体内肿瘤模型建立方法和体内抑瘤实验研究等方面的研究进展进行了评述,并通过大量实验数据对合成化合物毒性评价方法、抑瘤基本观察指标测定、氧化损伤相关酶活力的测定方法、组织病理学评价方法等体内抑瘤实验的评价标准和方法进行了详细总结,提出了合成化合物在体内动物抗肿瘤实验研究方法中亟待解决的问题,为新型抗肿瘤合成化合物体内药学活性研究提供有益的参考。

关键词：合成化合物抗肿瘤药物药物化学动物实验

Two Unusual 3D Compoundes Based on Copper-molybdates Coordination with 2,2'-bipy and Unpredicted Oxidation of an N-heterocycle Ligand

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Two Unusual 3D Compoundes Based on Copper-molybdates Coordin...