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全国环境天然放射性水平调查外照射测量的质量保证

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辐射防护 1995年第6期15卷 428-432页

作者： Yue Qingyu(China institute of atomic{2., beijing,{4.) 北京

本文总结了全国环境天然放射性水平调查外照射测量的质量保证工作。文中主要介绍了外照射测量中所用的仪表及性能，３次全国现场比对测量的结果，以及对２９个省、市、自治区和武汉、包头二市的测量结果进行的现场抽样核查的结果。

关键词：环境天然放射性调查外照射质量保证

AN ANALYTIC METHOD FOR TRANSPORT OF INTENSE ION BEAMS WITH LOW energy IN ACCELERATION-DECELERATION SYSTEM

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Chinese Science Bulletin 1982年第10期27卷 1046-1052页

作者：方锦清 institute of atomic{2. Academia Sinica Beijinghe transport problem of the intense ion beams with low energy is an interesting topic and so far it has been studied mainly by the numerical-simulation method with electronic computer. This problem has a particular significance for the study of ion-beam technique a technique widely used in many fields in modern science and technology. The purpose of this paper is to present a simple analytic method for studying the transport of the low energy intense ion beams in a system with any

The transport problem of the intense ion beams with low energy is an interesting topic, and so far it has been studied mainly by the numerical-simulation method with electronic computer. This problem has a particular significance for the study of ion-beam technique, a technique widely used in many fields in modern science and technology. The purpose of this paper is to present a simple analytic method for studying the transport of the low energy intense ion beams in a system with

关键词： intense analytic mentioned divide otherwise aperture infinite drift finished return

The forbidden transitions for magnesium isoelectronic sequences

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原子与分子物理学报 2001年第3期18卷 317-324页

作者： YI You-gen 1,2.3 , ZHU Zheng-he 2.TANG Yong-jian 3 ZHENG Zhi-jian 3 (1.Department of Physics, Xiangtan Normal College,Xiangtan 4.12.1 2.institute of {2. and Molecular Physics, Sichuan University, Chengdu 610065 3.Southwestern Institu 湘潭师范学院湖南湘潭 411201 四川大学四川成都 610065 中国工程物理研究院西南核物理与化学所四川成都 610003

Using the full relativistic quantum mechanics (GRASP2., we have calculated systematically the 3P 2. 3P 1 and 3P 1- 3P 0 magnetic dipole M1 energy level separations, transition probabilities and oscillator strengths in the 3s3p configuration of the magnesium sequences. The two configurations 3s3p and 3p3d are used. Breit and QED effects are treated as high-order perturbations. Excellent comparison is obtained throughout the range of atomic number Z, and the inclusion of the 3p3d configuration gives results which are in good agreements with recent experimental and reference data.

关键词：镁原子禁戒跃迁等电子数序

Anomalous Phenomena in E<18 keV Hydrogen Ion Beam Implantation Experiments on Pd and Ti

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Chinese journal of nuclear physics 1997年第4期19卷 244-249页

作者： Wang Tieshan~(1) Piao Yubo~(2. Hao Jifang~(1) Wang Xuezhi~(2. Jin Genming~(1) Niu Zhanqi~(2. (1)institute of Modern Physics,the Chinese Academy of Sciences,Lanzhou 730000 (2.Department of Modern Physics of Lanzhou University,Lanzhou 730000 中科院近代物理所甘肃兰州兰州大学现代物理系甘肃兰州

Implantation experiments of low energy（1 keVmax1.2.mA/cm2.and lowbeam density(Jmin0.02.mA/cm2..Palladium and titanium foils（plates）are bombarded withproton and deuteron beams in order to compare the atomic and nucl... 详细信息

Implantation experiments of low energy（1 keVmax1.2.mA/cm2./sup>)and lowbeam density(Jmin0.02.mA/cm2./sup>).Palladium and titanium foils（plates）are bombarded withproton and deuteron beams in order to compare the atomic and nuclear interactions between dif-ferent ion beams.X-ray and charged particles are measured,and neutron and gamma doses arealso monitored during the implantation *** anomalous peak in X-spectra,whoseenergy is about four times the beam energy,is observed during the high beam density *** peak moves from about 4. keV to 62.keV and FWHM reduces rapidly,while thebeam energy and intensity *** wide peak with over twice the beam energy is mea-sured in experiment with low beam *** is located between 16 keV and 30 keV,and itspeak energy increases with the increase of implantation dose（implantation time）.Some anoma-lous intensities of neutrons correlated with a charged particle peak（2.93,3.85 MeV）are alsoobserved in the deuteron-palladium *** highest neutron intensity reaches about8×104./sup> n/s,while the beam energy and intensity are about 15 keV and 1.0 mA,respectively.

关键词： Hydrogen ion beam Low energy Implantation Palladium and titanium foils

Calculation of the (n,p) Reaction Cross Sections for Zinc Isotopes

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中国核科技报告 1997年第S2期 47-53页

作者： Huang Xiaolong Lu Hanlin Zhao Wenrong (China institute of atomic{2., beijing)

A model calculation of (n,p) reaction cross sections for Zinc isotopes in the neutron energy range below 2. MeV is carried out with UNF code. The theoretical models are briefly described and a new set of the neutron optical model potential parameters for natural Zinc is given. The results of the calculation are compared with the experimental data and a good agreement is obtained.

关键词： Reaction Cross Sections for Zinc Isotopes n,p Calculation of the

Multiparty quantum secret sharing of classical and quantum messages

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Progress in Natural Science:Materials International 2007年第1期17卷 26-31页

作者： CHEN Pan, DENG Fuguo and LONG Guilu ( Key Laboratory for Quantum Information and Measurements, and Department of Physics, Tsinghua University, beijing 100084. China Key Laboratory of Beam Technology and Material Modification, MOE, {2. of Low {2. Nuclear Physics, and Department of Material Science and Engineering, beijing Normal University, beijing 100875, China beijing Radiation Center, beijing 100875, China Key Laboratory for atomic and Molecular Nano-Sciences, Tsinghua University, beijing 100084. China) [a]Key Laboratory for Quantum Information and Measurements and Department of Physics Tsinghua University Beijing China [b]Key Laboratory of Beam Technology and Material Modification MOE Institute of Low Energy Nuclear Physics and Department of Material Science and Engineering Beijing Normal University Beijing China [c]beijing Radiation Center Beijing China [d]Key Laboratory for atomic and Molecular Nano-Sciences Tsinghua University Beijing China

A scheme for multiparty quantum secret sharing of classical and quantum messages is proposed by using entanglement swapping. This scheme can distribute not only the classical information but also the quantum informati... 详细信息

关键词： quantum secret sharing classical message quantum message EPR pair.

NEW EVIDENCE FOR THE INHIBITION BY HARRINGTONINE IN THE FORMATION OF THE FIRST PEPTIDE BOND IN PROTEIN SYNTHESIS

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Science in China,Ser.B 1985年第5期28卷 512-516页

作者：方福德左瑾吴冠芸仪明光 institute of Basic Medical Sciences Chinese Academy of Medical Sciences beijing institute of atomic{2. Academia Sinica

New evidence for the inhibition by harringtonine in the formation of the first peptide bond in protein synthesis was obtained by means of experiments in the cell-free system. The antitumour drug strongly blocked dipeptide synthesis in the system without elongation factor G and GTP. Furthermore, it inhibited N-Acetyl-phenylalanyl-puromycin formation from NAcetyl-phenylalanyl-tRNA, puromycin, and ribosomes.

关键词： NEW EVIDENCE FOR THE INHIBITION BY HARRINGTONINE IN THE FORMATION OF THE FIRST PEPTIDE BOND IN PROTEIN SYNTHESIS

2.MeV质子在^(13)C上弹性及非弹性散射微分截面的全微观分析

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四川大学学报（自然科学版） 2003年第5期40卷 905-911页

作者：安竹沈东军陈泉程业浩郭刚罗小兵刘慢天四川大学原子核科学技术研究所辐射物理及技术教育部重点实验室成都610064 中国原子能科学研究院物理所北京102413

作者在9°～130°散射角范围,测量了2.MeV质子在12.,13C上的弹性散射微分截面以及在13C核1/2.(3.09MeV),3/2.(3.68MeV)和5/2.(3.85MeV)激发态上的非弹性散射微分截面.对12.,13C弹性散射微分截面进行了微观光学势分析,计算结果能较好地... 详细信息

作者在9°～130°散射角范围,测量了2.MeV质子在12.,13C上的弹性散射微分截面以及在13C核1/2.(3.09MeV),3/2.(3.68MeV)和5/2.(3.85MeV)激发态上的非弹性散射微分截面.对12.,13C弹性散射微分截面进行了微观光学势分析,计算结果能较好地描述实验数据.采用全微观扭曲波玻恩近似(DWBA)理论对非弹性散射实验数据进行了分析.通过小角区实验数据与理论计算结果的比较,进一步证实了13C的1/2.(3.09MeV)激发态存在中子晕结构.根据13C核1/2.(3.09MeV)激发态的其它实验结果,对1/2.(3.09MeV)态的壳模型单体密度矩阵元(OBDME)进行了修正.修正后的壳模型OBDME能较好地描述从电子散射实验得到的1/2.(3.09MeV)态的纵向和横向形状因子(formfactor)以及54.MeV质子非弹性散射微分截面.另外,作者在1/2.(3.09MeV)态的质子非弹性散射实验中观察到微分截面位于12.°附近的一个宽峰,该峰可能与核的π场效应(pionfieldeffect)有关.全微观DWBA计算结果大体上能给出3/2.(3.68MeV)和5/2.(3.85MeV)激发态实验数据的幅度大小,但对细节的描述还不能令人满意.作者的研究还表明了对13C核作仔细的大规模壳模型计算以及基于现代核子核子力构造低能区密度依赖的完整的有效相互作用的必要性.

关键词：质子非弹性散射扭曲波玻恩近似方法壳模型

A　Neutron　Diffraction　Study　for　the　Crystal　Structure　of　the　Deuterium（hydrogen）　L－Arginine　Phosphate　Monohydrate

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Chinese Journal of Structural Chemistry 1995年第6期 29-32页

作者： Cheng Zhi-Xu Cheng Yu Fen Guo Li-Ping(China institute of atomic{2.,P.O.Box 2.5(30),beijing {4.)

The crystal structure of the deuterium(hydrogen) L-arginine phosphate monohydrate D(H)LAP has been determined by neutron diffraction technique.[( D2.)2.ND (CH2.3CH (ND3)CO2.+·[D2.O4.1-·D2.,Mr=302.3,monoclinic space group P2.,Z=2.α=10.84.(3),b=7.913(2.,c=7.32.(2.,β=97.99(3)°,V=62..0(3),Dc=1.602.g/*** atoms were located by block diagonal matrix least-squares technique.A final Rf value of 0.04. was obtained for 104. observed independent *** crystal structure consists of alternate layers of phosphate groups and arginine molecules stacked along the axis a and held together by hydrogen bonds.

关键词： D(H) LAP neutron diffraction crystal structure non-linear optics Characteristic