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快中子     
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  fast neutron
     EFFECT OF 14MeV FAST NEUTRON IRRADIATION ON MELT-TEXTURED YBa_2Cu_3O_(7-δ)
     14MeV快中子对YBa_2Cu_3O_(7-δ)熔融织构样品的辐照效应
短句来源
     Calculation results of fast neutron (E>1MeV) irradiation damage had been given according to the NRC-RG1.99(Rev2).
     按照NRC-RG1.99(Rev2)规定给出了快中子(E>1Mev)辐照损伤计算结果;
短句来源
     Stuty on the Process of the Fast Neutron Radiative Capture for ~(40)Ca and~(208) Pb
     ~(40)Ca和~(208)Pb快中子辐射俘获过程研究
短句来源
     According to the test results,an empirical relation between the increment ΔTCV of the embrittlement temperature of the 15MnTi steels and the fast neutron fluence can be obtained under irradiation temperature at 50℃ and fast neutron fluence from 1.0×10 18cm-2 to 6.0×10 18cm-2.
     根据试验结果得到,辐照温度为50℃,快中子注量在1.0×1018cm-2到6.0×1018cm-2之间,15MnTi钢的脆性转变温度增量ΔTcv与积分快中子注量的经验关系公式。
短句来源
     The radiation dose of photon was 40~50Gy,and the dose of fast neutron was 8~12Gy.
     光子照射剂量为40~50Gy,快中子照射剂量为8~12Gy。
短句来源
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  fast neutrons
     Positron annihilation study of voids in α-Al_2O_3 irradiated by high fluence fast neutrons
     高注量快中子辐照在α-Al_2O_3中产生空洞的正电子湮没研究
短句来源
     A STUDY OF LEVEL LIFETIME OF ~(24)Na,~(26)Mg AND ~(27)Mg BY FAST NEUTRONS
     用快中子研究~(24)Na,~(26)Mg和~(27)Mg的能级寿命
短句来源
     Human blood was exposed to 14-MeV fast neutrons and ~(60)Co γ-rays in vitro, after which the blood was cultured. ~3H-TdR incorporation was followed in order to reflect DNA synthesis.
     应用人血在体外接受14MeV快中子和~(60)Coγ线照射后进行培养,以~3氢-胸腺嘧啶核苷(~3H-TdR)作参入实验以反映DNA合成。
短句来源
     Human blood was exposed to 14-MeV fast neutrons and ~(60)Co γ-rays in vitro, after which the blood was cultured. ~3H-TdR incorporation was followed in order to reflect DNA synthesis.
     应用人血在体外接受14MeV快中子和~(60)Coγ线照射后进行培养,以~3氢-胸腺嘧啶核苷(~8H-TdR)作参入实验以反映DNA合成。
短句来源
     In this investigation,ionizing particles are mainly neutrons,involved thermal neutrons,intermediate neutrons and fast neutrons (0.018~0.945 MeV) resulting from 7Li(p,n) 7Be and T(p,n) 3He nuclear reaction and 14 MeV neutrons.
     用作实验研究的粒子主要是中子 ,包括热中子和由7Li(p ,n) 7Be、T(p ,n) 3He核反应生成的中能中子、快中子 (0 0 18~ 0 94 5MeV)及 14MeV中子。
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  fast-neutron
     ~(40)Ar/~(39)Ar fast-neutron activation dating and geological significance of quartz from the gold-bearing quartz veins in the Mayum gold deposit,Xizang
     西藏马攸木金矿床含金脉石英的~(40)Ar/~(39)Ar快中子活化定年及其地质意义
短句来源
     The result of fast-neutron flux by measurement is 1.985×1012 cm-2·s-1. So the maximum fast-neutron fluence should be 1.54×1018cm-2 in beryllium reflector per operation cycle of MJTR.
     结果表明,铍反射层内快中子(E>1.0MeV)注量率为1.985×1012 cm-2·s-1,MJTR每运行一段,铍反射层内快中子(E>1.0MeV)积分注量最大可达1.54×1018cm-2。
短句来源
     Quartz from the major ore-forming stage of the Aketishikan gold deposit in the Nurt region of Northern Altay, Xinjiang, was analyzed by the 40Ar/39 Ar fast-neutron activation dating technique, which gave a well-defined plateau age of 138- 5 ± 2. 1 Ma and an isochron age of 135. 4 ± 4. 2 Ma.
     对新疆北阿尔泰诺尔特地区阿克提什坎金矿床主成矿阶段的石英样品进行~(40)Ar/~(39)Ar快中子活化法测年,其坪年龄为138.5±2.1Ma,等时年龄为135.4±4.2Ma,坪年龄代表石英的形成年龄。
短句来源
     The ~(40)Ar/~(39)Ar Fast-Neutron Activation Age of Quartz from the Aketishikan Gold Deposit in Northern Altay of Xinjiang and Its Geological Significance
     新疆阿克提什坎金矿床石英~(40)Ar/~(39)Ar快中子活化年龄及其意义
短句来源
     Experimental Determination of the Relative Fast-Neutron Efficiency of a ST451 Liquid Scintillation Detector With a Thin ~(252)Cf Source
     用薄膜~(252)Cf源测定ST451快中子探测器的相对效率
短句来源
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  fast neutron therapy
     Materials and Methods From January 1992 to June 1996,19 prostate cancer patients were treated at the Beijing Fast Neutron Therapy Coordination Group (3 with fast neutron and 16, with mixed fast neutron and photo therapy).
     材料与方法北京市快中子治疗协作组于1992年1月~1996年6月共收治前列腺癌19例。
短句来源
     Conclusion:Fast neutron therapy is one of the effective methods in the treatment of malignant melanoma.
     结论:快中子是治疗恶性黑色素瘤的一种有效的方法。
短句来源
     Among these methods are Intensity Modulated Radiotherapy(IMRT), Stereotactic Radiotherapy Three-Dimensional Conformal Radiation Therapy, Fast Neutron Therapy, Proton Therapy and Boron Neutron Capture Therapy(BNCT).
     围绕这个目标,近年来在放射治疗领域涌现出许多新方法,比如调强放疗、立体定向放射治疗,三维适形放疗,快中子治疗,质子治疗和硼中子俘获治疗等。
短句来源
     Conclusion\ The fast neutron therapy may make up the defect of the low LET ray therapy,especially to those radioresistant tumor cells to low LET rays. \;
     结论 快中子治疗肿瘤可以很好地弥补低LET射线放射治疗的不足 ,特别是对低LET射线较为耐受的肿瘤细胞 ,如KB细胞和WM 9839细胞。
短句来源
     The requirements and possibility for production of short-lived, neutron deficient radionuclides, for fast neutron therapy and activation analysis using cyclotrons are discussed briefly.
     用回旋加速器来生产核医学所需的短寿命、缺中子同位素; 用作为快中子治癌的中子源和用作活化分析工具,是回旋加速器在核医学领域中应用的主要方面。
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      fast neutron
    The core of Venus-1 is a coupled one of a fast neutron zone and a thermal neutron zone.
          
    The fast neutron zone is at the centre of the core and formed by natural uranium fuel.
          
    A fast neutron spectrum field can be produced in the fast neutron zone and used for the transmutation of minor actinides (MAs).
          
    The thermal neutron zone surrounds the fast neutron zone and is formed by low-enriched uranium fuel.
          
    An epithermal neutron zone between the fast neutron zone and the thermal neutron zone can be established for the transmutation of longlived fission products (LLFP).
          
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      fast neutrons
    Charge Losses through Recombination while Detecting Fast Neutrons with Gas Proportional Counters
          
    The detector unit composed of a KHT23-1 fission chamber and an assembly of CHM67Б neutron counters is used to detect slow neutrons, while the detector unit based on a KHT23-8 threshold fission chamber is intended for fast neutrons.
          
    During the operation of the facility, the detectors will be exposed to irradiation with a large fluence of fast neutrons.
          
    The first results obtained in studies of the characteristics of a stilbene crystal irradiated by fast neutrons with a fluence of up to 1014 neutrons/cm2 are presented.
          
    A measuring system has been developed to investigate the characteristics of radiation-induced optical absorption and radioluminescence in the spectral range of 400-1000 nm for a set of optical fibers being irradiated by fast neutrons and γ rays.
          
    更多          
      fast-neutron
    Implementation of fast-neutron radiography on a stationary neutron generator using a CCD detector
          
    We study the feasibility of using CaO as a target material for irradiation in fast-neutron reactors to produce an artificial high-intensity neutrino source on the basis of the37Ar isotope.
          
    The rate of37Ar emission from CaO samples under fast-neutron irradiation and vigorous heating was determined.
          
    A fast-neutron detector based on single-crystalline silicon
          
    It is shown that the change of the specific electrical conductivity (SEC) of silicon single crystals in the process of their irradiation is directly proportional to the fast-neutron fluence.
          
    更多          
      nf
    Transition energy and dipole oscillator strength of 1s23d-1s2nf transitions for Sc18+ ion
          
    The transition energies of the 1s23d-1s2nf (4?n?9) transitions and fine structure splittings of 1s2nf (n?9) states for Sc18+ ion are calculated with the full-core plus correlation method.
          
    The quantum defect of 1s2nf series is determined by the single-channel quantum defect theory.
          
    Three alternative forms of the dipole oscillator strengths for the 1s23d-1s2nf (n?9) transitions of Sc18+ ion are calculated with the transition energies and wave functions obtained above.
          
    Combining the quantum defect theory with the discrete oscillator strengths, the discrete oscillator strengths for 1s23d-1s2nf (n >amp;gt; 9) transitions and the oscillator strengths densities corresponding to the bound-free transitions are obtained.
          
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