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Relativistic Spin-Isospin Dependent Response Function of Nucleus

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Chinese Physics Letters 2000年第9期17卷 652-654页

作者： liu liang-gang chen wei ai bao-quan zheng xiao-ping Masahiro Nakano Department of Physics Zhongshan UniversityGuangzhou 510275 Masahiro Nakano University of Occupational and Environmental Health Kitakyusyu 807 Japan

A full relativistic formalism is employed to derive the relativistic particle-hole and delta-hole excitation polariza tion insertion of pion propagator in nuclear *** spin-isospin-dependent response function of nucleus at high energy-momentum transfer is calculated with the nuclear matter *** short range correlation effect,two-nucleon absorption and nucleus form factor effects are included in the *** position and width of the resonance peak of the spin-isospin mode are reproduced and found to be coincident with experiment *** position of the peak and its width is sensitive to Landau-Migdal parameter g'which is about 0.6.

关键词： calculation relativistic momentum

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σ介子的自相互作用对核物质物态方程的影响

高能物理与核物理 2001年第1期25卷 23-30页

作者：陈伟艾保全郑小平刘良钢中山大学物理系广州510275

在相对论σ－ω模型里，详细讨论了σ介子的自相互作用参数对正常核物质物态方程的影响，特别是对核物质的不可压缩系数、有效质量，以及σ介子与核子、ω介子与核子之间的耦合常数的影响，发现这些参数与核物质的性质之间有紧密的联系... 详细信息

在相对论σ－ω模型里，详细讨论了σ介子的自相互作用参数对正常核物质物态方程的影响，特别是对核物质的不可压缩系数、有效质量，以及σ介子与核子、ω介子与核子之间的耦合常数的影响，发现这些参数与核物质的性质之间有紧密的联系．同时，利用这些结果研究了相对论σ－ω－π模型下△共振态核物质的结合能和压强与温度之间的关系，并同我们以前的结果作了比较，得到了一些有意义的结果．在以上所有的分析中，考虑了核子、△粒子和σ介子的真空起伏．

关键词：自相互作用物态议程重整化真空起伏 σ介子核物质

Recent progress in nuclear astrophysics research and its astrophysical implications at the China Institute of Atomic Energy

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Nuclear Science and Techniques 2024年第12期35卷 376-408页

作者： wei-ping liu Bing Guo Zhu An bao-Qun Cui xiao Fang Chang-Bo Fu Bin-Shui Gao Jian-Jun He Yu-chen Jiang Chong Lv Er-Tao Li Ge-Xing Li Yun-Ju Li Zhi-Hong Li gang Lian wei-ping Lin Yi-Hui liu wei Nan wei-Ke Nan Yang-ping Shen Na Song Jun Su liang-Ting Sun xiao-Dong Tang Luo-Huan Wang Shuo Wang You-bao Wang Di Wu xiao-Feng Xi Sheng-quan Yan Li-Yong Zhang China Institute of Atomic Energy Beijing 102413China Department of Physics Southern University of Science and TechnologyShenzhen 518055China Jinping Deep Underground Frontier Science and Dark Matter Key Laboratory of Sichuan Province Liangshan 615000China School of Physics Xi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China Key Laboratory of Nuclear Physics and Ion-beam Application(MoE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Joint Department for Nuclear Physics Institute of Modern PhysicsChinese Academy of Sciences and Lanzhou UniversityLanzhou 730000China CAS Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 73000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Beam Technology of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhenChina Key Laboratory of Beam Technology and Material Modification of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Mathematics and Physics Handan UniversityHandan 056005China Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment Institute of Space SciencesShandong UniversityWeihai 264209China State Key Laboratory of Nuclear Physics and Technology School of PhysicsCAPTPeking UniversityBeijing 100871China

Nuclear astrophysics is a rapidly developing interdisciplinary feld of research that has received extensive attention from the scientifc community since the midtwentieth ***,it uses the laws of extremely small atomic nuclei to explain the evolution of the *** to the complexity of nucleosynthesis processes and our limited understanding of nuclear physics in astrophysical environments,several critical astrophysical problems remain *** achieve a better understanding of astrophysics,it is necessary to measure the cross sections of key nuclear reactions with the precision required by astrophysical *** measurement of nuclear reaction cross sections is an important method of investigating how nuclear reactions infuence stellar *** the challenges involved in measuring the extremely low crosssections of nuclear reactions in the Gamow peak and preparing radioactive targets,indirect methods,such as the transfer reaction,coulomb dissociation,and surrogate ratio methods,have been developed over the past several *** are powerful tools in the investigation of,for example,neutron-capture(n,r)reactions with short-lived radioactive ***,direct measurement is still preferable,such as in the case of reactions involving light and stable *** an essential part of stellar evolution,these low-energy stable nuclear reactions have been of particular interest in recent *** overcome the diffculties in measurements near or deeply within the Gamow window,the combination of an underground laboratory and high-exposure accelerator/detector complex is currently the optimal ***,underground experiments have emerged as a new and promising direction of *** addition,to better simulate the stellar environment in the laboratory,research on nuclear physics under laser-driven plasma conditions has gradually become a frontier *** recent years,the CIAE team conducted a series of distinctive nuclea

关键词： Nuclear astrophysics Indirect method Underground laboratory Direct measurement Lowenergy nuclear reaction

Observation of Hot Electrons in Surface-Wave Plasmas Excited by Surface Plasmon Polaritons

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Chinese Physics Letters 2011年第11期28卷 162-165页

作者： HU Ye-Lin chen Zhao-quan liu Ming-Hai HONG Ling-Li LI ping zheng xiao-liang XIA Guang-Qing HU Xi-wei College of Electrical and Information Engineering Anhui University of Science and TechnologyHuainan 232001 State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhan 430074 State Key Laboratory of Structure Analysis for Industrical Equipment Dalian University of TechnologyDalian 116024

The electron energy distribution functions(EEDFs)are studied in the planar-type surface-wave plasma(SWP)caused by resonant excitation of surface plasmon polaritons(SPPs)using a single cylindrical *** plasma characteristics can be considered as a bi-Maxwellian EEDF,which correspond to a superposition of the bulk low-temperature electron and the high-energy electron beam-like *** beam component energy is pronounced at about 10 eV but the bulk part is lower than 3.5 *** hot electrons included in the proposed plasmas play a significant role in plasma heating and further affect the discharge chemistry.

关键词： beam Electron resonant

Prevalence,Characteristics and Treatment of Knee Osteoarthritis in Urban Residents of Beijing,China:A Community-Based Cross-Sectional Study

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Biomedical and Environmental Sciences 2024年第4期37卷 418-422页

作者： ZHOU Jun YAN Yan DONG Ya wei liu xiao Yu WANG ping LIN Jia Ming DONG Peng Xuan quan Rui WANG Rong Tian MI bao Hong chen wei Heng Beijing University of Chinese Medicine Third Affiliated Hospital Beijing 100029China Engineering Research Center of Chinese Orthopaedics and Sports Rehabilitation Artificial Intelligent Ministry of EducationBeijing 100029China Beijing Hepingli Community Health Service Center Beijing 100013China Minimally Invasive Joint Surgery Beijing University of Chinese Medicine Third Affiliated HospitalBeijing 100029China

Knee osteoarthritis(KOA)is a common progressive joint disease with chronic pain and movement disorders as the main clinical *** is a major public health problem worldwide and it imposes serious medical and economic *** accounts for nearly four-fifths of the global Osteoarthritis burden and increases with rising obesity and age[1].There are many reasons for the change in disease prevalence and risk factors,such as urbanization,lifestyle changes,population aging,and sex imbalances.

关键词： Osteoarthritis clinical obesity

Phase Ⅰ clinical study of personalized peptide vaccination combined with radiotherapy for advanced hepatocellular carcinoma

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World Journal of Gastroenterology 2017年第29期23卷 5395-5404页

作者： Jie Shen Li-Feng Wang zheng-Yun Zou wei-wei Kong Jing Yan Fan-Yan Meng Fang-Jun chen Juan Du Jie Shao Qiu-ping Xu Hao-Zhen Ren Ru-Tian Li Jia wei xiao-ping Qian bao-Rui liu Comprehensive Cancer Centre of Drum Tower Hospital Medical School of Nanjing University Clinical Cancer Institute of Nanjing University Department of Hepatobiliary Surgery Drum Tower Hospital Medical School of Nanjing Universit-y

aiM To assess the efficacy and safety of a new treatment modality, cellular immune therapy based on personalized peptide vaccination(PPV-DC-CTL) combined with radiotherapy, for treating advanced hepatocellular carcinoma(HCC). METHODS A total of nine patients with advanced HCC were enrolled. Multidisciplinary consultation confirmed that all the patients definitely had no opportunity of surgery, because four patients had multiple liver metastases(the number of liver lesions > 3), one patient had liver metastases and portal vein tumor thrombosis, one patient had lung and bone metastases, two patients had liver and lung metastases and one patient had liver metastasis and peritoneal metastasis. Patients with metastasis were treated with precise radiotherapy combined with *** Following radiotherapy and one to three cycles of PPV-DC-CTL treatment, AFP levels were significantly decreased in six patients and imaging assessment of the lesions showed a partial response(PR) in three patients and stable disease in the other three patients. The response rate was 33% and disease control rate was 66%. This regimen was found to be safe and well tolerated. None of the patients developed liver or kidney side effects. Only one patient developed grade Ⅱ bone marrow suppression and the remaining patients had no significant hematological side *** Radiotherapy combined with PPV-DC-CTL provides a new therapeutic strategy for patients with advanced HCC, which is well tolerated, safe, feasible and effective.

关键词： Personalized peptide vaccination TOMO radiotherapy Cytotoxic lymphocytes Hepatocellular carcinoma

Stepped-up development of accelerator mass spectrometry method for the detection of ^(60)Fe with the HI-13 tandem accelerator

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Nuclear Science and Techniques 2024年第4期35卷 136-143页

作者： Yang Zhang Sheng-quan Yan Ming He Qing-Zhang Zhao Wen-Hui Zhang Chao-Xin Kan Jian-Ming Zhou Kang-Ning Li xiao-Fei Wang Jian-cheng liu Zhao-Hua Peng Zhuo liang ai-Ling Li Jian zheng Qi-Wen Fan Yun-Ju Li You-bao Wang Zhi-Hong Li Yang-ping Shen Ding Nan wei Nan Yu-Qiang Zhang Jia-Ying-Hao Li Jun-Wen Tian Jiang-Lin Hou Chang-Xin Guo Zhi-cheng Zhang Ming-Hao Zhu Yu-Wen chen Yu-chen Jiang Tao Tian Jin-Long Ma Yi-Hui liu Jing-Yu Dong Run-Long liu Mei-Yue-Nan Ma Yong-Shou chen wei-ping liu Bing Guo China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China College of Science Southern University of Science and TechnologyShenzhen 518055China School of Physics Xi’an Jiaotong UniversityXi’an 710049China

The Moon provides a unique environment for investigating nearby astrophysical events such as *** samples retain valuable information from these events,via detectable long-lived“fingerprint”radionuclides such as^(60)*** this work,we stepped up the development of an accelerator mass spectrometry(AMS)method for detecting^(60)Fe using the HI-13tandem accelerator at the China Institute of Atomic Energy(CIAE).Since interferences could not be sufficiently removed solely with the existing magnetic systems of the tandem accelerator and the following Q3D magnetic spectrograph,a Wien filter with a maximum voltage of±60 kV and a maximum magnetic field of 0.3 T was installed after the accelerator magnetic systems to lower the detection background for the low abundance nuclide^(60)Fe.A 1μm thick Si_(3)N_(4) foil was installed in front of the Q3D as an energy *** particle detection,a multi-anode gas ionization chamber was mounted at the center of the focal plane of the ***,an^(60)Fe sample with an abundance of 1.125×10^(-10)was used to test the new AMS *** results indicate that^(60)Fe can be clearly distinguished from the isobar^(60)*** sensitivity was assessed to be better than 4.3×10^(-14)based on blank sample measurements lasting 5.8 h,and the sensitivity could,in principle,be expected to be approximately 2.5×10^(-15)when the data were accumulated for 100 h,which is feasible for future lunar sample measurements because the main contaminants were sufficiently separated.

关键词： Accelerator mass spectrometry Wien filter Isobar separation Supernovae Chang'e-5 lunar samples

Solar X-ray and EUV imager on board the FY-3E satellite

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Light(Science & Applications) 2022年第12期11卷 2939-2951页

作者： Bo chen xiao-Xin Zhang Ling-ping He Ke-Fei Song Shi-Jie liu Guang-Xing Ding Jin-ping Dun Jia-wei Li Zhao-Hui Li quan-Feng Guo Hai-Feng Wang xiao-Dong Wang Yun-Qi Wang Hong-Ji Zhang Guang Zhang Zhen-wei Han Shuang Dai Pei-Jie Zhang liang Sun Yang liu software engineer Peng Wang Kun Wu chen Tao Shi-Lei Mao Gui Mei liang Yang Li-Heng chen Chun-Yang Han Bin Huang Yang liu mechanical engineer Shuai Ren Peng Zhou Ze-Xiwei xiao-Xue Zhang Yue Zhang Xin zheng Yang Wang Ya chen Jing-Jiang Xie Fei He Qiao Song wei-Guo Zong Xiu-Qing Hu Peng Zhang Jing-Song Wang Zhong-Dong Yang Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina State Key Laboratory of Applied Optics Chinese Academy of SciencesChangchunChina National Satellite Meteorological Center China Meteorological AdministrationBeijingChina Key Laboratory of Space Weather National Center for Space WeatherChina Meteorological AdministrationBeijingChina Innovation Center for Fengyun Meteorological Satellite(FYSIC) BeijingChina Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina

The solar X-ray and Extreme Ultraviolet Imager(X-EUVI),developed by the Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences(CIOMP),is the first space-based solar X-ray and Extreme ultraviolet(EUV)imager of China loaded on the Fengyun-3E(FY-3E)satellite supported by the China Meteorological Administration(CMA)for solar *** started work on July 11,2021,X-EUVI has obtained many solar *** instrument employs an innovative dual-band design to monitor a much larger temperature range on the Sun,which covers 0.6-8.0 nm in the X-ray region with six channels and 19.5 nm in the EUV region.X-EUVI has a field of view of 42′,an angular resolution of 2.5″per pixel in the EUV band and an angular resolution of 4.1″per pixel in the X-ray *** instrument also includes an X-ray and EUV irradiance sensor(X-EUVS)with the same bands as its imaging optics,which measures the solar irradiance and regularly calibrates the solar *** radiometric calibration of X-EUVS on the ground has been completed,with a calibration accuracy of 12%.X-EUVI is loaded on the FY-3E satellite and rotates relative to the Sun at a uniform ***-field calibration is conducted by utilizing successive rotation solar *** agreement between preliminarily processed X-EUVI images and SDO/aiA and Hinode/XRT images indicates that X-EUVI and the data processing algorithm operate properly and that the data from X-EUVI can be applied to the space weather forecast system of CMA and scientific investigations on solar activity.

关键词： image instrument Solar

Development and calibration of the Moon-based EUV camera for Chang'e-3

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Research in Astronomy and Astrophysics 2014年第12期14卷 1654-1663页

作者： Bo chen Ke-Fei Song Zhao-Hui Li Qing-Wen Wu Qi-liang Ni xiao-Dong Wang Jin-Jiang Xie Shi-Jie liu Ling-ping He Fei He xiao-Guang Wang Bin chen Hong-Ji Zhang xiao-Dong Wang Hai-Feng Wang Xin zheng Shu-Lin E Yong-cheng Wang Tao Yu liang Sun Jin-Ling Wang Zhi Wang liang Yang Qing-Long Hu Ke Qiao Zhong-Su Wang Xian-wei Yang Hai-Ming bao Wen-Guang liu Zhe Li Ya chen Yang Gao Hui Sun Wen-Chang chen Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences

The process of development and calibration for the first Moon-based ex- treme ultraviolet （EUV） camera to observe Earth＇s plasmasphere is introduced and the design, test and calibration results are presented. The EUV camera is composed of a multilayer film mirror, a thin film filter, a photon-counting imaging detector, a mech- anism that can adjust the direction in two dimensions, a protective cover, an electronic unit and a thermal control unit. The center wavelength of the EUV camera is 30.2 nm with a bandwidth of 4.6nm. The field of view is 14.7° with an angular resolution of 0.08°, and the sensitivity of the camera is 0.11 count s-1 Rayleigh-1. The geomet- ric calibration, the absolute photometric calibration and the relative photometric cal- ibration are carried out under different temperatures before launch to obtain a matrix that can correct geometric distortion and a matrix for relative photometric correction, which are used for in-orbit correction of the images to ensure their accuracy.

关键词： Chang'e-3 -- EUV camera: development: calibration -- Earth's plas-masphere -- lunar exploration