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裂变     
相关语句
  fission
    Experimental Research on the Dependence of ~(235)U Fission Yields on Incident Neutron Energies
    ~(235)U裂变产额随入射中子能量变化的实验研究
短句来源
    SOME THEORETICAL INVESTIGATION FOR THE STRUCTURE PHENOMENON OF FISSION NEUTRON SPECTRA
    关于裂变中子谱结构现象的理论探讨
短句来源
    ANGULAR DISTRIBUTION OF THE FISSION FRAGMENTS AND THE STRUCTURE AT THE SADDLE POINT
    裂变碎块角分布与鞍点结构
短句来源
    PROBABILITY OF PROMPT NEUTRON EMISSION FROM SPONTANEOUS FISSION OF Pu~(240)
    Pu~(240)自发裂变放出瞬时中子数目的几率分布
短句来源
    RADIOCHEMICAL INVESTIGATION OF MASS DISTRIBUTIONS IN ~(12)C-INDUCED FISSION OF ~(209)Bi AND ~(238)U
    ~(12)C离子引起~(209)Bi和~(238)U裂变中质量分布的放射化学研究
短句来源
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  fissioning
    The effective moment of inertia, charge density distributions of the fissioning nucleus ~(170)Yb and ~(254)Fm at saddle point are calculated by using the continuous medium model with variable densities.
    用密度变化的连续介质模型计算了裂变核~(170)Yb和~(254)Fm鞍点有效转动惯量及电荷分布.
短句来源
    The isospin effect of particle emission for fissioning isobaric sources 110 Tc, 110Pd, 110In and for isotopic sources of 110,117,124 In were investigated within the framework of the Smoluchowski equation.
    在Smoluchowski方程的框架内 ,研究了同位旋对轻裂变同量异位素源110 Tc ,110 Pd ,110 In和同位素源110 ,117,12 4In裂变前粒子发射的影响 .
短句来源
    Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems
    同位旋对轻系统裂变前粒子发射的影响
短句来源
    Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems
    曲率能及压缩能对缺中子裂变系统断前中子发射的影响(英文)
短句来源
    The results arc compared with the experimental data. This shows that under the present approximation the "anomalously" small K_0~2 of fissioning nuclei in the uranium region at low excitation energy (Ecxc≤15 MeV) can be explained by introduction of the pairing effects in nuclei. Furthermore, the absence of the "anomalous" phenomena for fissioning nuclei near the lead region may be qualitatively interpreted by means of the dependence of pairing effects on angular momentum.
    与实验数据比较的结果表明:在现有近似下,原子核的对相互作用能解释U区裂变核在低激发能(Eexc≤15MeV)时,K_0~2“反常”小的现象,同时利用对相互作用与角动量的依赖关系,可以定性地解释Pb附近裂变核并没有这种“反常”现象。
短句来源
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  a fission
    ~(99)Tc is a fission product; it has high and abundant fission yield (6.13%) and a very long half-life (2.13×10~5a).
    ~(99)Tc是一种裂变产物,它的裂变产额较高(6.13%),半衰期非常长(2.1×10~5a),并且是一个发射软β的放射性核素(E_(max)=293.5keV)。
短句来源
    The dynamical calculation of quasi fission reaction induced by 10.6MeV/u 84 Kr on 27 Al is performed using one body dissipation model. The calculation suggests a fission time larger than 200×10 -22 sec. It is found that the threshold for emergence of quasi fission in the reactoin system is 8 MeV/u.
    用单体耗散模型对10.6MeV/u84Kr在27Al上引起的准裂变反应进行了计算,结果表明该准裂变反应的准裂变时间大于200×10-22s.发现对本反应系统,准裂变的出现至少需要8MeV/u阈能
短句来源
  neutron fission
    A NUMERICAL METHOD FOR STATISTICS FLUCTUATION PROBLEM OF NEUTRON FISSION CHAINS
    中子裂变链统计涨落问题的数值计算方法
短句来源
    The fission yield of 135 Cs in the thermal neutron fission of 235 U is measured accurately by a neutron activation analysis in which the fission fragments are recoiled to a Al catcher.
    应用裂变反冲法和中子活化分析法测定了热中子诱发235U裂变中135Cs的裂变产额。 主要研究内容包括:235U靶的制备;
短句来源
    An one diminsional equivalenly modelling numerical method is presented for statistics fluctuation problem of neutron fission chains in unsteady fission system.
    对于非定常裂变系统中子裂变链统计涨落问题提出了一维等效模型下数值模拟的方法。
短句来源

 

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  fission
Cenozoic uplift of West Qinling, northeast margin of Tibetan plateau-a detrital apatite fission track record from the Tianshui b
      
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).
      
Fusion, Fragmentation, and Fission of Mitochondria
      
Mitochondrial shapes are also described which are interpreted as intermediates of their "equational" division, or fission.
      
This review considers molecular components and possible mechanisms of fusion, fragmentation, and fission of mitochondria, and the biological significance of these processes is discussed.
      
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  fissioning
In addition to the main process of binary fission, three branches of collinear three-body disintegration, which are associated with various mechanisms of the excitation of a deformed fissioning nucleus, are observed.
      
The analysis performed reveals that the coordinate-independent reduction coefficient ks is not compatible with the simultaneous description of the main fission characteristics for fissioning systems heavier than 224Th.
      
It is emphasized that angular anisotropy and various angular correlations of fission products are possible only if the fissioning nucleus remains nonthermalized during all the stages of fission from the saddle point to scission.
      
In contrast to prompt neutrons, scission neutrons are expected to mostly depend on the characteristics of the fissioning nucleus and, in particular, on its neutron number N.
      
The analysis is done for five compound nuclear systems representing heavy fissioning nuclei, medium fissioning nuclei, and a light fissioning one with the angular momentum varied in a wide range from l = 0 to 70?.
      
更多          
  a fission
A Method for Determining the Average Charge inside a Fission Chamber
      
The channel consists of a fission chamber, a set of boron-containing gas-filled ionization chambers, and an electronic unit that ensures a counting rate of fission pulses of up to ~1 × 106 s-1.
      
It is shown that the widest linear range is achieved in channels equipped with a fission chamber and a gas-filled ionization chamber with electrodes coated with natural boron.
      
A fission ionization chamber has been designed to monitor neutron fluxes produced by the proton beam of the Van de Graaf accelerator in the 7Li(p, n)7Be nuclear reaction.
      
Under conditions of heavy-ion fusion (HIF), there arises the possibility of obtaining a fission chain reaction for a HIF cylindrical target (Koshkarev, Sharkov, 2002).
      
更多          
  neutron fission
Division of nuclear charge in the thermal neutron fission of U235
      
Delayed neutron emission for thermal neutron fission of235U is investigated by means of a helium-filled mass separator.
      
Thermal neutron fission cross sections in the range 302≧A≧223
      
A least squares method is used to fit a smooth curve to known thermal neutron fission cross section data for nuclei of evenN.
      
Study of short-lived Ru-isotopes produced in thermal neutron fission of235U
      
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