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Coexistence of normal, super-, and hyper-deformation in nuclei: A study with angular momentum projection method

Chinese Science Bulletin 2009年第3期54卷 358-363页

作者： SUN Yang1,2, ZHANG JingYe3, LONG GuiLu4,5 & WU ChengLi6,7 1 Department of Physics, Shanghai Jiao Tong university, Shanghai 200240, China 2 joint institute for nuclear astrophysics, university of notre dame, notre dame, indiana 46556, usa 3 Department of Physics and Astronomy, university of Tennessee, Knoxville, Tennessee 37996, usa 4 Department of Physics, Tsinghua university, Beijing 100084, China 5 Center of nuclear Theory, Lanzhou National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China 6 Department of Physics, Xiamen university, Xiamen 361005, China 7 Department of Physics, Chung Yuan Christian university, Chung-Li, Taiwan 32023, China Department of Physics Shanghai Jiao Tong University Shanghai 200240 China joint institute for nuclear astrophysics University of Notre Dame Notre Dame Indiana 46556 USA Department of Physics and Astronomy University of Tennessee Knoxville Tennessee 37996 USA Department of Physics Tsinghua University Beijing 100084 China Center of nuclear Theory Lanzhou National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China Department of Physics Xiamen University Xiamen 361005 China Department of Physics Chung Yuan Christian University Chung-Li Taiwan 32023 China

Angular-momentum-projected energy surface calculations for A ≈ 110 nuclei indicate three distinct energy minima occurring at different angular-momenta. These correspond to normal, super-, and hy- per-deformed shapes coexisting in one nucleus. 110Pd is studied in detail, with a quantitative prediction on super- and hyper-deformed spectra by the Projected Shell Model calculation. It is found that several other neighboring nuclei in the A-110 mass region, with the neutron number around 64, also exhibit clear super- and hyper-deformation minima in the projected calculation.

关键词：原子核光谱角动量能量

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Dark output characteristic of γ-ray irradiated CMOS digital image sensors

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Rare Metals 2002年第1期21卷 79-84页

作者： MENG Xiangti and KANG A iguo institute of nuclear Energy Technology, Tsinghua university, Beijing 100084, China institute of nuclear Energy Technology Tsinghua University 北京 100084

The quality of dark output images from the CMOS (complementarymetal oxide semiconductor) black and white (B & W) digital imagesensors captured before and after γ-ray irradiation was studied. Thecharacteristic parameters of the dark output images captured atdifferent radiation dose, e.g. average brightness and itsnon-uniformity of dark out- put images, were analyzed by our testsoftware. The primary explanation for the change of the parameterswith the radi- ation dose was given.

关键词： CMOS digital image sensor gamma radiation dark output characteristic Si

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Degradation of 4-chlorophenol in aqueous solution by γ-radiation and ozone oxidation

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Science China Chemistry 2006年第2期49卷 186-192页

作者： HU Jun1, WANG Jianlong1,2 & CHEN Rong1 1. Laboratory of Environmental Technology, institute of nuclear Energy Technology, Tsinghua university, Beijing 100084, China 2. State Key joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua university, Beijing 100084, China Correspondence should be addressed to Wang Jianlong 1. Laboratory of Environmental Technology Institute of Nuclear Energy Technology Tsinghua University Beijing 100084 China 2. State Key joint Laboratory of Environmental Simulation and Pollution Control Tsinghua University Beijing 100084 China

The degradation of 4-chlorophenol (4-CP) by using gamma rays generated by a 60Co source in the presence of O3 was investigated. The radiolysis of 4-CP and the kinetics of 4-CP min-eralization were analyzed based on the determination of total organic carbon (TOC). The influence of initial 4-CP concentration and the free radicals scavengers (such as NaHCO3 and t-butanol) on the 4-CP degradation was also studied. The results showed that when the radiation rate was 336 Gy·min?1, 4-chlorophenol at concentration of 10 mg·L?1 could be completely degraded at the radiation dose of 2 kGy. The degradation of 4-chlorophenol could be described by a first-order reaction model, the rate constant of 4-CP degradation by combined ozonation and radiation was 0.1016 min?1, which was 2.4 times higher than the sum of radiation (0.0294 min?1) and ozonation (0.0137 min?1). It re-vealed that the combination of radiation and ozonation resulted in synergistic effect, which can re-markably increase the degradation efficiency of 4-CP.

关键词： radiolysis, 4-chlorophenol, priority pollutant, degradation, O3, synergistic effect, kinetics.

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Microscopic Analysis of Inelastic Proton Scattering off ^(28)Si

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Chinese journal of nuclear physics 1995年第2期17卷 124-128页

作者： An Zhu(institute of nuclear Science and Technology,Sichuan university,Chengdu 610064) Sichuan Univ Chengdu China

The elastic and inelastic scattering data of 22 MeV protons from 28Si havebeen *** measured differential cross sections were compared with microscop-ic DWBA calculations in which nuclear transition densities extracted from （e,e’） exper-iments were used directly.A density-dependent nucleon-nucleon effective interaction inthe low-energy region,Complex Effective Interaction with Gaussian form factor（CEG）,was applied in our *** problems associated were discussed.

关键词： Proton inelastic scattering Local momentum approximation Nucleonnucleon effective interaction

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Progress of Lyman-alpha-based beam emission spectroscopy(Ly BES)diagnostic on the HL-2A tokamak

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Plasma Science and Technology 2024年第3期26卷 118-125页

作者：周艺轩余羿许敏柯锐聂林徐皓赵光义刘灏袁子豪肖晨雨李继全肖池阶 the HL-2A Team Southwestern institute of Physics Chengdu 610041People's Republic of China Sino-French institute of nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082People's Republic of China State Key Laboratory of nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871People's Republic of China

An edge Lyman-alpha-based beam emission spectroscopy(LyBES)diagnostic,using a heating NBI(neutral beam injection)system,is currently under development on the HL-2A *** 20-channel edge LyBES,which is intended to measure the density fluctuation in plasma edge(from R=1960 mm to R=2026 mm)with an improved spatial resolution of 3.3 mm,is a complement to the existing conventional beam emission spectroscopy(BES)*** this article,we introduce the progress of LyBES diagnostic,including the collection optics,the monochromator,and the detector *** reflectance of the collection mirrors is measured to be~82%at 122 nm,and the aberration geometrical radius of the collection optics is tested to be~150μm in the aimed *** linear dispersion of the LyBES monochromator is designed to be~0.09 nm mm^(-1).The bandwidth of the detector system with the 5×10^(7)V A^(-1)preamplifier gain is measured to be~280 kHz,and the peak-to-peak noise of the detector system is tested to be~16 *** finalized design,components development and testing of the LyBES diagnostic have been completed at present,and an overall performance of the LyBES diagnostic is to be confirmed in the next HL-2A campaign.

关键词： density fluctuation Ly BES BES vacuum ultraviolet

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Kinetic study of wet oxidation of Si_(0.5)Ge_(0.5) alloy by Rutherford backscattering spectroscopy

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nuclear Science and Techniques 2000年第2期11卷 114-118页

作者： ZHANG Jing-Ping1,2 CHEN Chang-Chun2 LIU Jing-Hua ZHU De-Zhang XIE Dong-Zhu PAN Hao-Chang(institute of Semiconductors, Shandong Normal university, Jinan 250014,Laboratory of nuclear Analysis Technology,Shanghai institute of nuclear Research,the Chines 山东师范大学山东济南 250014 中科院上海原子核所核分析技术开放实验室上海 201800

The oxidation of Si0.5Ge0.5 alloy has been investigated at the tempera-tures of 800℃ and 900℃. Rutherford backscattering spectroscopy has been employed to determine the composition and thickness of the oxide layers. Only Si0.5Ge0.5O2 layer formed during the oxidation at 800℃, whilst three layers, Si0.5Ge0.5O2, SiO2 and Ge, are existed after the oxidation at 900℃. Experimental rcsults are interpreted by adding a germanium flux F4 in Deal-Grove oxidation model of Silicon.

关键词： Si0.5Ge0.5合金硅锗合金卢瑟福散射散射光谱氧化动力学研究半导体材料

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Bitstream decoding and SEU-induced failure analysis in SRAM-based FPGAs

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Science China(Information Sciences) 2012年第4期55卷 971-982页

作者： WANG ZhongMing 1,2,YAO ZhiBin 2,GUO HongXia 2 & LV Min 1 1 Department of Engineering Physics,Tsinghua university,Beijing 100084,China 2 Northwest institute of nuclear Technology,Xi'an 710024,China 1. Department of Engineering Physics Tsinghua University Beijing 100084 China2. Northwest Institute of Nuclear Technology Xi’an 710024 China

Reconfigurable SRAM-based FPGAs are highly susceptible to radiation induced single-event upsets (SEUs) in space *** bit flip in FPGAs configuration memory may alter user circuit permanently without proper bitstream reparation,which is a completely different phenomenon from upsets in traditional memory *** is important to find the relationship between a programmable resource and corresponding control bit in order to understand the impact of this *** this paper,a method is proposed to decode the bitstream of FPGAs from Xilinx Corporation,and then an analysis program is developed to parse the netlist of a specific design to get the configuration state of occupied programmable logic and *** that,an SEU propagation rule is established according to the resource type to identify critical logic nodes and paths,which could destroy the circuit topological *** decoded relationship is stored in a *** database is queried to get the sensitive bits of a specific *** result can be used to represent the vulnerability of the system and predict the on orbit system failure *** analysis tool was validated through fault injection and accelerator irradiation experiment.

关键词： radiation effect single-event effect single-event upset SRAM-based FPGA fault injection

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PROGRESS ON EVALUATION OF nuclear DATA AT institute OF nuclear RESEARCH IN 1989

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中国核科技报告 1990年第S2期 43-44页

作者： Tian Jiaqi(institute OF nuclear RESEARCH, ACADEMIA SINICA,SHANGHAI)

1 EVALUATION OF DECAY DATA nuclear decay data are important for nuclear physics,nuclear technology,and the development of nuclear *** last years,the decay data forRh,Rb andAs have been collected and *** includeinternal-conversion coefficient,adopted levels,transition properties,energiesand intensities of γ-ray and X-ray,and half *** have already provided the data to Chinese nuclear Data Center.

关键词： AT PROGRESS ON EVALUATION OF nuclear DATA AT institute OF nuclear RESEARCH IN 1989

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RECOVERING RE FROM LEACHING LIQUOR OF RARE EARTH ORE BY EXTRACTION

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中国有色金属学会会刊：英文版 1995年第4期5卷 36-40页

作者： Chi Ru’an Xu Jingming He Peijiong Zhu Yongjun(institute of nuclear Energy Technolegy,Tsinghua university,Beijing 100084) Tsinghua Univ Beijing China

ＲＥＣＯＶＥＲＩＮＧＲＥＦＲＯＭＬＥＡＣＨＩＮＧＬＩＱＵＯＲＯＦＲＡＲＥＥＡＲＴＨＯＲＥＢＹＥＸＴＲＡＣＴＩＯＮＣｈｉＲｕ＇ａｎ；ＸｕＪｉｎｇｍｉｎｇ；ＨｅＰｅｉｊｉｏｎｇ；ＺｈｕＹｏｎｇｊｕｎ（Ｉｎｓｔｉｔｕｔｅｏ... 详细信息

ＲＥＣＯＶＥＲＩＮＧＲＥＦＲＯＭＬＥＡＣＨＩＮＧＬＩＱＵＯＲＯＦＲＡＲＥＥＡＲＴＨＯＲＥＢＹＥＸＴＲＡＣＴＩＯＮＣｈｉＲｕ＇ａｎ；ＸｕＪｉｎｇｍｉｎｇ；ＨｅＰｅｉｊｉｏｎｇ；ＺｈｕＹｏｎｇｊｕｎ（ＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅａｒＥｎｅｒｇｙＴｅｃ...

关键词： rare earth ore leaching solvent extraction

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Fundamental study of CO_2 control technologies and policies in China

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Science China(Technological Sciences) 2008年第7期51卷 857-870页

作者： JIN HongGuang1, ZHANG XiLiang2, GAO Lin1, YUE Li2, HE JianKun2 & CAI RuiXian1 1 institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China 2 institute of nuclear and New Energy Technology, Tsinghua university, Beijing 100084, China 1. institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100080 China 2. institute of nuclear and New Energy Technology Tsinghua University Beijing 100084 China

The technical roadmap and policies for CO2 mitigation suitable for China are a common center of attention in the fields of energy, environment, and management science in the country. Emphasizing interaction between technical research and policy research, this work discovers the potential breakthrough in the integrated field. The technical difficulties of recovering CO2 are pointed out, the mechanism of combining CO2 recovery with energy conversion is investigated, and the basic principle for integrating an environmental-friendly energy system is discussed. Moreover, the formulation of a new energy system that can recover CO2 with very low or even zero energy penalty is proposed, while the assessment methodology and model system for the technical roadmap of CO2 emission control are developed. Finally, a new technical roadmap constructing an energy network suitable for China is proposed, which may provide a new way for the development of sustainable energy and environment technologies.

关键词： CO2 capture and storage technical roadmap energy policy

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