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Development of new diagnostics based on LiF detector for pump-probe experiments

Matter and Radiation at Extremes 2018年第4期3卷 197-206页

作者： T.Pikuz A.Faenov NOzaki T.Matsuoka B.Albertazzi N.J.Hartley K.Miyanishi K.Katagiri S.Matsuyama K.Yamauchi H.Habara Y.Inubushi T.Togashi H.Yumoto H.Ohashi Y.Tange T.Yabuuchi M.Yabashi A.N.Grum-Grzhimailo A.Casner I.Skobelev S.Makarov S.Pikuz G.Rigon M.Koenig K.A.Tanaka T.Ishikawa R.Kodama Graduate School of Engineering Osaka UniversitySuitaOsaka 565-0871Japan Joint Institute for High Temperatures Russian Academy of SciencesMoscow 125412Russia Open and Transdisciplinary Research Initiatives Osaka UniversitySuitaOsaka 565-0871Japan Photon Pioneers Center Osaka UniversitySuitaOsaka 565-0871Japan LULI e CNRS Ecole PolytechniqueCEA:Universite Paris-SaclayUPMC Univ Paris 06:Sorbonne Universites-F-91128 Palaiseau cedexFrance Helmholtz-Zentrum Dresden-Rossendorf Dresden 01328Germany Japan Synchrotron Radiation Research Institute Sayo-choSayo-gunHyogo 679-5198Japan RIKEN Spring-8 Center Sayo-choSayo-gunHyogo 679-5148Japan Skobeltsyn Institute of Nuclear physics Lomonosov Moscow State UniversityMoscow 119991Russia Universite de Bordeaux-CNRS-CEA CELIA(Center Lasers Intenses et Applications)UMR 5107F-33405 TalenceFrance National Research Nuclear University MEPhI Moscow 115409Russia ELI-NP/IFN-HH Maqurele-Bucharest 077125 Romania ILE Osaka UniversitySuitaOsaka 565-0871Japan

We present new diagnostics for use in optical laser pump-X-ray Free Electron Laser(XFEL)probe experiments to monitor dimensions,intensity profile and focusability of the XFEL beam and to control initial quality and homogeneity of targets to be driven by optical laser *** developing X-ray imaging,based on the use of an LiF crystal detector,we were able to measure the distribution of energy inside a hard X-ray beam with unprecedented high spatial resolution(~1 mm)and across a field of view larger than some *** diagnostic can be used in situ,provides a very high dynamic range,has an extremely limited cost,and is relatively easy to be implemented in pump-probe *** proposed methods were successfully applied in pump-probe experiments at the SPring-8 Angstrom Compact free electron LAser(SACLA)XFEL facility and its potential was demonstrated for current and future High Energy Density Science experiments.

关键词： XFEL Shock waves Pump-probe experiments High energy density science X-ray spectroscopy X-ray imaging

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采用MR磁敏感成像提高对多发硬化灰质及白质变化的鉴别能力

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国际医学放射学杂志 2014年第6期 579-579页

作者： D.A.Rudko I.Solovey J.S.Gati M.Kremenchutzky R.S.Menon 石彦姝 Department of physics Centerfor Functional and Metabolic MappingRobarts Research Instituteand Department of NeurologyUniversity HospitalUniversity of Western Ontario1151 Richmond St NorthLondonONCanada N6A 5B7

摘要目的评估定量磁敏感(QS)和R2*mapping是否有作为一种可替代性生物学标记的潜力,用以描述多发性硬化(MS)与相关临床指标、按年龄标化的脱髓鞘及铁沉积的情

关键词： MR 年龄标化脱髓鞘白质髓质铁沉积灰质

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Normal physics Model of an Aerial Remote Sensing Platform and Systemic Accuracy Assessment of a Variable Baseline-Height Ratio

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Journal of Geodesy and Geoinformation Science 2019年第1期 72-72页

作者： Lei YAN Zhengkang ZUO Yingcheng LI Xiuxiao YUAN Yan SONG Qingsheng XUE Shihu ZHAO Institute of Remote Sensing and Geographic Information System Beijing Key Lab.of Spatial Information Integration and its ApplicationPeking University Chinese Academy of Surveying and Mapping China TOPRS Technology Co.Ltd. School of Remote Sensing and Information Engineering Wuhan University Faculty of Information Engineering China University of Geosciences Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of Sciences Satellite Surveying and Mapping Application Center NASG

Accuracy is a key factor in high-resolution remote sensing and photogrammetry. The factors that affect accuracy are imaging system errors and data processing errors. Due to the complexity of aerial camera errors,this paper focuses on the design of digital aerial camera systems and the means to reduce system error and data processing inefficiencies. There are many kinds of digital aerial camera systems at present; however,these systems lack a unified physical model,which ultimately leads to more complicated designs and multi-camera modes. Such a system is complex and costly,as it is easily affected by factors such as vibration and temperature. Thus,the installed accuracy can only reach the millimeter level. Here,we describe a unified physical structure for a digital aerial camera that imitates an out-of-field multi-charge-coupled device (CCD),an in-field multi-CCD,and once-imaging and twice-imaging digital camera systems. This model is referred to as the variable baseline-height ratio spatiotemporal model. The variable ratio allows the opto-mechanical spatial parameters to be linked with height accuracy,thus providing a connection to the surface elevation. The twice-imaging digital camera prototype system and the wideband limb imaging spectrometer provide a transformation prototype from the current multi-rigid once-imaging aerial camera to a single rigid ***,our research lays a theoretical foundation and prototype references for the construction and industrialization of digital aerial systems.

关键词： Normal physics Model of an Aerial Remote Sensing Platform and Systemic Accuracy Assessment of a Variable Baseline-Height Ratio Model

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Generating Solitons by Phase Engineering of a Bose-Einstein Condensate

Generating Solitons by Phase Engineering of a Bose-Einstein ...

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CCAST“激光冷却：玻色—爱因斯坦凝聚和原子激射器”研讨会

作者： J.Denschlag J.E.Simsarian D.L.Feder C.W.Clark L.A.Collins J.Cubizolles L.Deng E.W.Hagley K.Helmerson W.P.Reinhardt S.L.Rolston B.I.Schneider W.D.Phillips National Institute of Standards and Technology (NIST.Gaithersburg MD 20899.USA. ~1National Institute of Standards and Technology(NIST.Caithersburg MO 2O899 USA.~2University of Oxford parks Road.OXford OX1 3PU UK. Theoretical Division Mail Stop 3212.Los Alamos Natiooal Laboratory Los AlamosNM 87545USA National Inscitute of Standards and Technology(NIST.Gaithersbure MD 20899.USA. Ecole Normate Superieure 24 rue Lhomond 75231 Paris.France. National Institute of Standards and Technology (NIST.Gaithersburg.MO 20899. USA.Department of Chemistry.University of Washington Seattle.WA 98 95.USA. physics Division National Science Foundation ArjingtonVA 22230.USA

Quantum phase engineering is demonstrated with two novel techniques thatallow the spatial phase distribution of a Bose-Einstein condensate(BEC) to bewritten and read out.A quantum state was designed and produced by opticallyimprinting a phase pattern onto a BEC of sodium atoms,and matter-waveinterferometry with spatially resolved imaging was used to analyze the re-sultant phase *** appropriate phase imprint created *** experimental realization of this nonlinear phenomenon in a BEC Thesubsequent evolution of these excitations was investigated both experimentallyand theoretically.

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Dual-channel quantum meta-hologram for display

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Advanced Photonics Nexus 2024年第1期3卷 86-92页

作者： Yubin Fan Hong Liang Yuhan Wang Shufan Chen Fangxing Lai Mu Ku Chen Shumin Xiao Jensen Li Din Ping Tsai City University of Hong Kong Department of Electrical EngineeringHong KongChina City University of Hong Kong Centre for BiosystemsNeuroscienceand NanotechnologyHong KongChina City University of Hong Kong The State Key Laboratory of Terahertz and Millimeter WavesHong KongChina The Hong Kong University of Science and Technology Department of PhysicsHong KongChina The Hong Kong University of Science and Technology IAS Center for Quantum TechnologiesHong KongChina Harbin Institute of Technology(Shenzhen) Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information SystemGuangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic SystemsShenzhenChina Pengcheng Laboratory ShenzhenChina

Quantum technologies rely on creating and manipulating entangled sources,which are essential for quantum information,communication,and *** integrating quantum technologies and all-dielectric metasurfaces,the performance of miniature display devices can be enhanced to a higher *** display technology,such as virtual reality display,has achieved original commercial success,and was initially applied to immersive games and interactive *** the consumer market has quickly adopted this technology,several areas remain for improvement,including concerns around bulkiness,dual-channel display,and noise ***,we experimentally realize a quantum meta-hologram concept demonstration of a miniature *** fabricate an ultracompact meta-hologram based on 1μm thick titanium dioxide(TiO_(2)).The meta-hologram can be remotely switched with heralding technique and is robust against noise with the quantum entangled *** platform can alter the miniature display channel by manipulating heralding photons’polarization,removing speckles and multiple reflective light noise,improving imaging contrast,and potentially decreasing device *** contrast increases from 0.36 dB under speckle noise influences to 6.8 dB in quantum correlation *** approach has the potential to miniaturize quantum displays and quantum communication devices.

关键词： quantum meta-hologram display metasurface dual channel

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爱因斯坦探针：探索变幻多姿的X射线宇宙

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中国科学：物理学、力学、天文学 2018年第3期48卷 2-21页

作者：袁为民张臣陈勇孙胜利张永合崔伟凌志兴黄茂海赵冬华王文昕裘予雷刘柱潘海武蔡洪波邓劲松贾振卿金驰川孙惠胡海波刘飞飞张墨宋黎明卢方军贾淑梅李承奎赵海升葛明玉张娟崔苇苇王于仨王娟孙小进金戈黎龙辉陈凡胜蔡志鸣郭彤刘国华刘华秋冯骅张双南张冰戴子高吴雪峰苟利军中国科学院国家天文台中国科学院空间天文与技术重点实验室北京100012 中国科学院大学天文与空间科学学院北京100049 中国科学院高能物理研究所北京100049 中国科学院上海技术物理研究所上海200083 中国科学院微小卫星创新研究院上海201203 清华大学天体物理中心北京100084 北方夜视技术股份有限公司南京211106 Department of physics and Astronomy University of Nevada Las VegasNV 89154USA 北京大学科维理天文与天体物理研究所和天文系北京100871 南京大学天文与空间科学学院南京210093 中国科学院紫金山天文台南京210034

爱因斯坦探针(Einstein Probe,EP)是一颗面向时域天文学的、发现型的X射线天文探测卫星,是中国科学院空间科学战略性先导专项十三五规划的空间科学卫星系列任务之一.展望未来十年,时域天文学将进入一个前所未有的、多波段和多信使的大... 详细信息

爱因斯坦探针(Einstein Probe,EP)是一颗面向时域天文学的、发现型的X射线天文探测卫星,是中国科学院空间科学战略性先导专项十三五规划的空间科学卫星系列任务之一.展望未来十年,时域天文学将进入一个前所未有的、多波段和多信使的大视场监测的黄金时代.在软X射线窗口,灵敏且快速的全天监测为我们提供了一个难得的科学机遇.EP卫星将在这一能段窗口开展时域巡天监测,旨在发现和探索宇宙中的X射线暂现源和爆发天体,并发布预警以引导其他天文设备进行后随跟踪观测.EP的科学载荷包括一台宽视场软X射线监视器(3600平方度,0.5–4 keV)和一台后随观测X射线望远镜(0.3–8 keV).卫星具有快速机动反应能力以及暂现源警报的快速下传功能.由于采用了新颖的微孔龙虾眼X射线聚焦成像技术,其探测灵敏度和空间分辨率比目前在轨运行设备提高了1个数量级,将能监测更远、更大的宇宙空间范围.预期EP将在以下三方面做出贡献:高能暂现天体的系统性巡天监测,发现隐身的沉寂黑洞并测绘宇宙黑洞的分布、研究其形成演化和物质吸积过程,搜寻来自引力波事件的X射线信号并精确定位等.此外,EP的探测目标还将包括从中子星、白矮星、超新星、宇宙早期伽玛暴、X射线闪到恒星耀发等众多的天体和现象,涉及广泛的天体物理学分支.卫星计划于2022年底左右发射.运行寿命为3年,目标5年.

关键词： X射线:空间科学 X射线:时域天文学空间科学卫星:爱因斯坦探针

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