最新刊期
      卷 0 ， 期 0 ， 2020
      • Issue 1, (2000)
        摘要：Some new experimental results carried out in a manifold circular pipe for liquidmetal MHD (Magneto-hydro-dynamic ) fluid flow were presemed in this article. Thevelocity distributions were measured at the center plane of cross section of the jointof the manifold pipe. The instabilities of vortex street were observed in the crosssection of the pipe. An expression formula of three--dimensional (3D) additional MHDpressure drop due to the manifold junction was obtained. 2D MHD effects and effectof non-fully developed flow on the experiment results were also discussed.  
        关键词：Magneto-hydro-dynamic;Velocity distributions;Three-dimensicnal effects   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：第四届“王淦昌优秀校科学和核技术论文奖”（１９９６年－１９９７年），对申请及推荐参评论文进行初评、复评及评委常委终评，评出优秀论文８篇，现公布如下：１．赵子强，韦伦存，王浩，钟运成，卢希庭（ＩｎｓｔｉｔｕｔｅｏｆＨｅａｖｙＩｏｎｐｈｙｓｉｃｓ，Ｐｅｋ...  
          
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：The Radioactive ion Beam Line in Lanzhou (RIBLL) is described. This systemhas been connected to 100M Ethernet and is run on the NT platform of MS windows.The system has adopted CAMAC specification and incorporated PAW and CERNLIBof CERN in it. It is a powerful and flexible data acquiring and analysis system with arate of~640Kb/s.  
        关键词：RIBLL;Data acquiring and analysis system;SCSI bus;CAMACCLC TL56   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：A study on ~129I in the environmental samples around the high radioactivity siteswas carried out. Samples were collected from the surface water and ground water.The ~129I in samples were measured using the AMS at the China institute of AtomicEnergy. The result showed that ~129I contents in samples collected at the vicinity ofhigh radioactivity sites were much higher than the content in the original rain water.  
        关键词：129I;Environment;Accelerator mass spectrometry   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：This paper dealt with the osteoporosis model of New Zealand rabbits in order tostudy the functions of inorganic elements for women patients with osteoporosis.Thirty cases of iliac crest were collected and determined using Neutron ActivationAnalysis (NAA) technique. The results showed that the fluorine concentrations inthe experimental group were higher than those in the control group and themagnesium concentrations were significantly lower (P<0.001), but theconcentrations of K, Na, Ca, Ba, Mn, Sr had no remarkable difference. Combinedwith the serum biochemical markers of bone formation and resorption, thephysiological functions of some metal elements in bone were discussed.  
        关键词：Osteoporosis;Inorganic elements;Neutron activation analysis   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：Measurement of microdoshoetric spectrum and radial dose distribution of 14N+1ions with energy of 66-119keV after passing through a PET （C80H9O4） film with athickness of 4 u m were presented. As a function of 14N+1 ion energy and beamintensity I, the dose-mean specific energy by single event z1D was measured. Thedependance of 14N+1 ion range in PET film on ion energy was calculated by TIRM92Monte Carlo Program. The results of measurements and calculations were comparedand discussed.  
        关键词：Microdossimetry of heavy ions;Microdosemetric spectrum;Radialdose distribution;Ranges   
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        发布时间：2021-03-12
      • FAN Xiangjun
        Issue 1, (2000)
        摘要：在国家自然科学基金委数理学部和工程与材料学部的支持和参与下，来自全国的２２位曾承担过物理Ⅱ学科资助项目的专家聚集在武汉大学，就离子束材料学科领域的研究进展和未来发展进行了广泛和深入的讨论。我国从事该领域研究的主要单位和主要学术带头人基本上都出席了本次...  
        关键词：Ion beam;Modification of materials;Solids   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：A microcomputer controlled system was designed to connect thermoluminescencedosimeter and a IBM-PC microcomputer. The system has been applied to a series ofthermoluminesence readers, such as FJ-377, RDG-3 and FJ-427. It has beensuccessfully used in thermoluminescence dosimetry and material sciences study.  
        关键词：Thermoluminescence reader;Microcomputer control;Glow curve   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：编委：陈竹舟，男，６０，研究员，从事核环境与辐射防护（中国核学会）程业勋，男，６Ｓ，教授，从事核地球物理（中国地质大学）承焕生，男，６０，教授、博士导师，从事核技术（复旦大学现代物理研究所）柴之芳，男，５６，研究员，从事核分析（中国科学院高能物理研究...  
          
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：The X-ray spectrum of a DPF (Dense Plasma Focus) pulse X-ray device wasmeasured by a filter method with good results. This method is applicable to theradiation effect study in which the X-ray energy spectruxn is essential for theanalyses of experimental results.  
        关键词：DPF;Filter method;X-ray spectrum;Thermoluminescent dosimeter   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：(Shanghai institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800)The synergistic extraction of U（VI） and separation of U（VI） and TI（IV） from nitricacid solution by HBMPPT （4-benzoyl-2,4-dihydro-5-mepgrazol-3-thione） and DOSO （di-n-octyl sulfoxide） in toluene was studied. Theextraction ability of HBMPPT was not so high as that of its parent （HBMPP）, butwhen a little DOSO was added in, the ability to extract U（VI） was improved rapidly.The syndrgistic extracted complexes may be presented as a mixture of UO2NO3BMPPT, UO2NO3, BMPPT. DOSO, UO2（BMPPT）2 and UO2（BMPPT）2. DOSO forU（VI）. When HBMPPT-DOSO was used to separate U（VI） from TI（W）, the separationcoefficient reached 523 under certain condition.  
        关键词：Uranium;Thorium;HBMPPT;DOSO;Solvent extraction   
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        发布时间：2021-03-12
      • FANG Qinxue
        Issue 1, (2000)
        摘要：目前，各科研管理部门正在考虑“十、五”期间的资助领域和项目的问题，国家自然科学基金委员会也开始了对“十、五优先资助领域”的研讨。为了做好这方面的工作，物理Ⅱ学科已经向各主要资助单位寄出了自然科学基金“重大”、“重点”项目建议书的表格和“建议简表”，征...  
        关键词：Natural Science Foundation;Nuclear techniques;Interdiscipline   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：The detecting efficiency of Coulomb dissociation fragments by a givendetector-array placed at very forward angle has been calculated by usingMonte--Carlo simulation based on a semi-classic description of the Coulombdissociation 50MeV/u 208Na+,2208Pb-p + 19Ne + 208Pb. The feasibility of measuring theresonance cross section of the capture reaction p+ 19Ne~20Na in stellar environmentwas discussed.  
        关键词：Dissociation;Capture;Virtual photon;Double-hitting;Efficiency   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：Microwave systems of 476MHz and 2856MHz were set up at the high brillianceinjector for wideband Shanghai Free Electron Laser Facility (SFEL). The twomicrowave systems have coherent phases and feed the microwave power to RF usgrid-controled electron gun, subharmonic buncher and fundamental buncher etc,respectively. The working principles, technical specifications and the results of theinstallation and tests of the two systems were presented.  
        关键词：Frequency source;Travelling wave tube amplifier;Pulse modulatedpower source   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：A lot of experiments on niobium--sputtered copper quarter wave resonator(QWR) have been done. A DC sputtering system with other auxiliary devices was setup completely. Sputtering parameters were under control. Superconducting propertiesof the cavity and the properties of the niobium film were measured.  
        关键词：Accelerator;Superconducting;Sputter;QWR;Film   
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        发布时间：2021-03-12
      • Issue 1, (2000)
        摘要：The preparation of carrier-free add germanium-68 by the nuclear reaction69Ga(p,3n)69Ge in Cyclone-30 was studied. A semi-automatic device for producinggermanium-68 was developed. The solid target which was an alloy of Ga4Ni wasobtained. After bombardment with 20MeV protons, the irradiated target wasdissolved in nitric acid and separated utilizing a liquid-liquid extraction systemgiving a recovery of 91% of the germanium-68 product.  
        关键词：68Ge;Extraxtion;Alloy   
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        发布时间：2021-03-12
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