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PIXE and INAA studies on ancient potteries from Guangfulin relics in Shanghai

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Progress in Natural Science:Materials International 2007年第11期17卷 1348-1356页

作者： Lin Jiawei1, Cheng Huansheng1, Zhang Zhengquan1, Zhang Bin1, Feng Songlin2, Song Jian3. Gao Menghe4 and Zhu Dan1(1. Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, institute of Modern Physics, Fudan University, Shanghai 20043., china 2. Key Laboratory of Nuclear Analytical Techniques, institute of High {3. Physics, Beijing 10003., china 3. Shanghai Museum, Shanghai 200003. china 4. Department of Cultural Heritage and Museology, Fudan University, Shanghai 20043., china) Applied Ion Beam Physics Laboratory Key Laboratory of the Ministry of Education Institute of Modern Physics Fudan University Shanghai 200433 China Key Laboratory of Nuclear Analytical Techniques Institute of High Energy Physics Beijing 100039 China Shanghai Museum Shanghai 200003 China Department of Cultural Heritage and Museology Fudan University Shanghai 200433 China

This paper reports the study of ancient potteries unearthed from the Guangfulin site in Shanghai. From the external features of these potteries, archeologists can classify them into two different cultural types: Liangzhu culture (local culture) and a new culture which might be derived elsewhere, but they can not recognize whether they were produced in the same place. Proton induced X-ray emission (PIXE) and instrumental neutron activation analysis (INAA) were used to measure the chemical compositions of the samples and the results were analyzed using multivariate statistics. We found that the two methods can complement each other and their database can be mutually referenced in the study of ancient potteries. Experimental results show that the compositions of the potteries from the two cultural types are different, which means that the materials for ancient potteries of new culture originate from elsewhere. This supports the archaeologists’ speculation that a group of ancient people migrated to Shanghai from some other places 4000 years ago.

关键词： PIXE INAA factor analysis Guangfulin ancient pottery

Patterns of platinum-group elements in mantle peridotite, granulite xenoliths and basalt in Hannuoba

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Chinese Science Bulletin 1999年第18期44卷 1676-1681页

作者： CHU Xuelei, LI Xiaolin, XU Jiuhua and LIU Jianming1. The Research Center of Mineral Resources Exploration , Chinese Academy of Sciences , Beijing 100101, china 2. institute of Geology , Chinese Academy of Sciences , Beijing 100029, china 3. institute of High energy Physics , Chinese Academy of Sciences , Beijing 100817 , china 4. Beijing University of Science and Engineering , Beijing 100083. china Corresponding author The Research Center of Mineral Resources Exploration Chinese Academy of Sciences Beijing China institute of Geology Chinese Academy of Sciences Beijing China institute of High energy Physics Chinese Academy of Sciences Beijing China Beijing University of Science and Engineering Beijing China

Neutron activation analysis after preconcentration of nickel sulfide fire assay was used in measurement of Ru, Ph, Pd, Os, Ir, Pt (i.e. PGE elements) and Au concentrations for basalt, mantle and granulite xenoliths in Hannuoba. The chondrite- and primitive mantle-normalized PGE patterns generally exhibit flat (for Iherzolite), negative slope (for harzburgite),

关键词： mantle xenolith granulite xenolith basalt platinum-group element Hannuoba.

A template of rat brain based on fMRI T2* imaging

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Progress in Natural Science:Materials International 2005年第6期15卷 502-506页

作者： HU Zhenghui1, WU Yigen2, WANG Xiaochuan3. WANG Jianzhi3. CHEN Feiyan1 and TANG Xiaowei1*(1. Department of Physics and Bio-X Laboratory, Zhejiang University, Hangzhou 3.0027, china 2. institute of High energy Physics and Key Laboratory of Nuclear Analysis Techniques, Chinese Academy of Sciences,Beijing 10003., china 3. Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 43.03., china) Department of Physics and Bio-X Laboratory Zhejiang University Hangzhou 310027 China institute of High energy Physics and Key Laboratory of Nuclear Analysis Techniques Chinese Academy of Sciences Beijing 100039 China Department of Pathophysiology Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China

The development of functional magnetic resonance imaging (fMRI) technology has made it possible to carry out functional brain imaging experiments in small animals. Usually, group data is required to form the assessment of population, which can not only increase the sensitivity of the overall experiment, but also allow the generalization of the conclusion to the whole population. In order to average the signals of functional brain images from different subjects, it is necessary to put all the mapping images into the same standard space (template image). However, up to now, most animal brain templates remain unavailable and it must be done by ourselves. In this study, a template image based on the brains of eight male Wistar rats is obtained, and it is successfully used in our present Alzheimer disease (AD)-like rat model studies as template for spatially normalizing images to the same stereotaxical space. The fMRI results processed with statistical parametric mapping (SPM99) software are in agreement with the results from immunohistochemical experiment, which proves that this method is universally applicable to the pathologic models of other small animals and to human brain lesion studies.

关键词： fMRI animal model atlas template normalization T*2.

Catalytic protection of stannous ion by ascorbic acid in diphosphonic acids solutions

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Nuclear Science and Techniques 1998年第2期9卷 121-123页

作者： Liu Guo-Zheng Liu Fei Miao Zeng-Xing Wang Yi-Shan and Fang Ji-Dong (Isotope Department, china institute of atomic {3., Beijing 102.13. Isotope Department China Institute of Atomic Energy Beijing 102413 China

The protective ability of ascorbic acid(Vc) on stannous ion and the influence of light irradiation on the stability of stannous ion in diphosphonate medium at pH=5 have been examined in order to attain minimal loss of stannous ion during the production of lyophilized radiopharmaceutical *** sum of stanous ion and Vc was determined with iodometric *** was shown that the protective ability of Vc was still strong at Vc concentration much lower than that of stannous ion and the illumination by fluorescent lamp was unfavorable to the stability of stannous *** change of pH in the range 3.9 did not affect the action of Vc significantly.

关键词：锡离子稳定性骨造影工具

Comment on “Recent progress in thermodynamics of radiation——exergy of radiation,effective temperature of photon and entropy constant of photon”

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Science china(Technological Sciences) 2009年第6期52卷 1809-1810页

作者： LIU LinHua School of energy Science and Engineering,Harbin institute of Technology,Harbin 150001,china School of energy Science and Engineering Harbin Institute of Technology Harbin 150001 China

Chen et *** the concepts of effective temperature of photon and entropy constant of photon in a recent paper [Chen Z S,Mo S P,Hu *** progress in thermodynamics of radiation―exergy of radiation,effective temperature of photon and entropy constant of *** china Ser E-Tech Sci,2008,51(8):1096―1109] by enduing a single photon with macroscale thermodynamic parameters such as exergy and *** paper argues that applying these concepts and their inferences to macro-scale thermodynamic system will lead to the results which conflict with macroscale thermodynamic *** means that the concepts of effective temperature of photon and entropy constant of photon are not correct.

关键词： thermodynamics of radiation photon entropy exergy

Two－Side　Electron　Beam　Pumping　System　For　Hundred－Joule－Level　KrF　Excimer　Laser

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Chinese Journal of Lasers 1996年第6期B5卷 485-491页

作者： MA Weiyi SHAN Yusheng ZHOU Kungong WANG Youtian ZHANG Dong WU Fangfang YANG Zhe WANG Naiyan (china institute of atomic {3., P. O. for 275-7, Beijing 102.13.china) china Inst of atomic energy Beijing China

Ｔｗｏ－ＳｉｄｅＥｌｅｃｔｒｏｎＢｅａｍＰｕｍｐｉｎｇＳｙｓｔｅｍＦｏｒＨｕｎｄｒｅｄ－Ｊｏｕｌｅ－ＬｅｖｅｌＫｒＦＥｘｃｉｍｅｒＬａｓｅｒ￥ＭＡＷｅｉｙｉ；ＳＨＡＮＹｕｓｈｅｎｇ；ＺＨＯＵＫｕｎｇｏｎｇ；ＷＡＮＧＹ... 详细信息

Ｔｗｏ－ＳｉｄｅＥｌｅｃｔｒｏｎＢｅａｍＰｕｍｐｉｎｇＳｙｓｔｅｍＦｏｒＨｕｎｄｒｅｄ－Ｊｏｕｌｅ－ＬｅｖｅｌＫｒＦＥｘｃｉｍｅｒＬａｓｅｒ￥ＭＡＷｅｉｙｉ；ＳＨＡＮＹｕｓｈｅｎｇ；ＺＨＯＵＫｕｎｇｏｎｇ；ＷＡＮＧＹｏｕｔｉａｎ；ＺＨＡＮＧＤｏｎｇ；...

关键词： KrF excimer laser pulsed power system

A 12-bit multichannel ADC for pixel detectors in particle physics and nuclear imaging

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Science china(Technological Sciences) 2010年第5期53卷 1208-1214页

作者： WEI Wei1,2,3.WANG Zheng1,3.& ZHAO JingWei1,3.1 institute of High energy Physics,Chinese Academy of Sciences,Beijing 100049,china 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,china 3.Key Lab of Nuclear Detection Technology and Nuclear Electronics of Chinese Academy of Sciences,Beijing 100049,china 1. institute of High energy Physics Chinese Academy of Sciences Beijing 100049 China2. Graduate University of Chinese Academy of Sciences Beijing 100049 China3. Key Lab of Nuclear Detection Technology and Nuclear Electronics of Chinese Academy of Sciences Beijing 100049 China

Modern pixel detectors in nuclear and particle physics experiments and also in nuclear imaging,starve for highly integrated application specified integrated circuit(ASIC),whereas in china the study of ASIC still stays far away from practical *** lack of ASIC strictly limits the research and development of domestic high energy physics field.A 12-bit multichannel ADC designed for high density readout is introduced as a major candidate for solution.A precise model is discussed and the simulation fully agrees with the model,which indicates a key principle of *** is performed according to the given rule,and novel layout techniques are carried *** results in all aspects are also obtained,showing an excellent real performance,which satisfies the practical requirement.

关键词： application specified integrated circuit high density readout Wilkinson ADC multi-channel ADC

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散裂中子源与先进核能系统

核科学与工程 1998年第1期18卷 80-93页

作者： LI SHOUNAN (china institute of atomic {3.) 中国原子能科学研究院

散裂中子源的应用日益受到人们的重视。本报告仅对散裂中子源的历史、物理基础、对加速器要求、靶系统及其应用于先进核能系统作一般介绍。

关键词：散裂反应散裂中子源先进核能系统中子源

Observation of signature inversion in the πh_(9/2)(×)νi_(13.2) oblate band

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Science china(Physics,Mechanics & Astronomy) 2005年第4期48卷 442-449页

作者： XIE Chengying1,2, ZHOU Xiaohong1,2, ZHANG Yuhu1, GUO Yingxiang1, LEI Xiangguo1, ZHENG Yong1, LIU Minliang1, SONG Litao1, WANG Hualei1, YU Haiping1, GUO Wentao 1, LUO Peng1, WU Zhijun1, ZHU Lihua3.& WU Xiaoguang3.⒈ institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73.000, china ⒉ Graduate School of the Chinese Academy of Sciences, Beijing 100049, china ⒊ institute of atomic energy Research, Beijing 102.13. china institute of Modern Physics Chinese Academy of Sciences Lanzhou China Graduate School of the Chinese Academy of Sciences Beijing China institute of atomic energy Research Beijing China

High-spin states in 190Tl have been studied via the 160Gd(3.Cl, 5nγ) reaction. The level scheme, consisting of the π h9 /2 νi13.2 oblate band and a cascade with character of single particle excitations, has been established. Spin values have been firmly assigned to the oblate band in 190Tl, resulting in low-spin signature inversion in the π h9 /2 νi13.2 oblate band for the first time. Based on the similarity of the level structure in doubly odd Tl nuclei, spin values for the oblate bands in 192―200Tl should be re-assigned, and a consistent low-spin signature inversion has occurred in these oblate deformed nuclei. The low-spin signature inversion phenomena can be interpreted qualitatively by using the 2-quasiparticle plus rotor model including p-n residual interactions.

关键词： deformed odd-odd 190Tl, oblate rotational bands, signature inversion, 2-qp+rotor model.