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target nucleus
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  靶核
     INFLUENCE OF THE NEUTRON NUMBER OF TARGET NUCLEUS ON CROSS SECTIONS OF PARTICLES EMISSION IN ~(12)C+~(112,124)Sn
     ~(12)C+~(112,124)Sn反应中靶核中子数对出射粒子截面的影响
短句来源
     The elastic scattering differential cross section dσ/(dΩ), polarization P(θ) and spin rotation function Q(θ) are calculated separately for the target nucleus~(12)C at incident energies 179.80 294.8 and 508 MeV. By comparison with the experimental polarization data, the antiproton optical potential in its general form is obtained at intermediate energies.
     在反质子能量为179.8,294.8和508MeV各情况下,分别计算和分析与~(12)C靶核的微分截面(dσ)/(dΩ),极化度P(θ)和自旋转动函数Q(θ). 在与极化度的实验比较中,得到中能区普遍形式的反质子光学势.
短句来源
     An empirical formula has been suggeste to describe the dependence of known experimental(n,p) reaction cross sections averaged over  ̄(235)U thermal fission neutron spectrum on the asymmetry parameter (N-Z)/A of the target nucleus.
     综合讨论了不同靶核在~(235)U裂变中子谱上的平均(n,p)反应截面,提出了描述(n,p)反应截面与靶核反对称参数(N-Z)/A之间关系的经验公式。
短句来源
     The isospin dependence of IMF emission was studied for the reaction system with different isospin target nucleus and the different IMF production mechanisms that originate from projectile like、 target like and the “neck” were distinguished.
     采用具有不同的同位旋靶核研究了靶同位旋与中等质量碎片的关系 ,以及区分反应过程中类弹、类靶产生的中等质量碎片和“颈”发射过程中产生的中等质量碎片
短句来源
     At the energy T_a~(lab)=1.37 GeV. Using the Glauber's multiple scattering theory, we assume that ~4He-~(12)C scattering is a multiple scattering process between nucleons in projectile ~4He and target nucleus ~(12)C.
     本文具体处理了137GeV的α粒子和~(12)C的弹性散射,认为α-~(12)C的散射是由α粒子与靶核~(12)C内的核子-核子多重散射过程。
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  “target nucleus”译为未确定词的双语例句
     These experimental results show that △ is independent of the dimuon mass and logitudinalmomentum, and imply the scattering of the incident quark within the target nucleus.
     实验结果显示出△不依赖于末态轻子对的质量与纵向动量的结果,暗示了入射部分子(夸克)在核靶中多重散射效应的存在。
短句来源
     The most possible initial orbital angular momentum obtained from are 35.5(h) and 39(h)for the capture of ~8Be and α by target nucleus respectively.
     测定了与前方角20°—50°发射的α粒子相关联的余核级联γ的平均γ多重性〈M_γ〉,据此推算出~(124)Sn核俘获~8Be和α反应的最可几初始轨道角动量分别是35.5((?) )和39((?)
短句来源
     The absorption coefficients approach to zero inside the target nucleus, so that the elastic scattering takes place at the surface region of nucleus.
     光学势在核中的吸收系数趋于零,因此弹性散射主要发生在核的表面.
短句来源
     Conclusion After monoclonal antibody conjugated with 131 I,the combined agent can d target nucleus of the tumor cells,then the radioiodine is transported into tumor cells and destroyed the cell.
     结论 单克隆抗体与13 1I交联后靶向于肿瘤细胞核 ,和瘤体特异性结合 ,并将其荷载的放射性核素输送到肿瘤细胞内 ,由内向外摧毁肿瘤。
短句来源
  相似匹配句对
     N TARGET
     命中目标
短句来源
     The curriculum target should be regarded as the nucleus.
     四大目标的核心是课程目标。
短句来源
     On the Target Fragments in High EnergyNucleus-Nucleus Collisions
     高能核—核碰撞的靶核碎片研究
短句来源
     On the Target Management
     浅谈目标管理
短句来源
     Clustering Property of Nucleus
     原子核的结团性质
短句来源
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  target nucleus
A system of triggers has been developed for selection of events with η-mesic nuclei, which are identified by a two-particle decay of the S11(1535) resonance produced in a target nucleus (S11 → pπ-).
      
The onset of initial-state interactions is controlled by the production length lP, and we find strong variations of nuclear transparency when lP rises with energy and becomes comparable to the radius of the target nucleus RA.
      
It is concluded that a partial filling of the diffraction minimum in the cross section is due to the D-wave contribution to the wave function for the 6Li target nucleus.
      
Here, J1=Ix-1/2 and J2=Ix+1/2, where Ix denotes the spin of the target nucleus in the ground state.
      
The reaction cross section (σR) for a deformed target nucleus and spherical projectile is calculated using the optical-limit approximation of the Glauber-Sitenko theory.
      
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The present paper studies the (dp) stripping reactions with the target core excitation. In this case, we assume that the target nucleus and the residual nucleus contain the conventional shell model configuration and other configurations mixed by the nucleon-nucleon residual interaction.

本文研究了在氘核削裂反应中伴随有靶核核心激发的情况。在这种情况下,假定由于核子-核子剩余相互作用,靶核的组态除了通常壳模型组态外,还混杂有核心激发的组态。同样,剩余核的组态主要是某一种核心激发的组态,但也还混杂有别种组态。在这假定下,给出了所考虑的反应过程的微分截面表示式。它表明,反应截面主要由靶核的组态混合所贡献。一般说来,组态的混合程度不大,故可预期截面数值是较小的。公式还表明,反应角分布的特征峯是由核心在激发后留下来的空穴态的轨道角动量量子数所决定的。这二点结论与这类反应的实验结果是一致的。运用这公式具体估计了六个反应事例的核谱因子,在实验误差内,理论值和从实验的估计值大致相合。

Based on the "Rigid Projectile" Approximation, we have analyzed the Saclay data on the elastic scattering of alpha ~(12)C. At the energy T_a~(lab)=1.37 GeV. Using the Glauber's multiple scattering theory, we assume that ~4He-~(12)C scattering is a multiple scattering process between nucleons in projectile ~4He and target nucleus ~(12)C. We don't introduce any free parameter in our calculation. The theoretical differential cross sections are compared with the experimental one. The agreement is satisfactory....

Based on the "Rigid Projectile" Approximation, we have analyzed the Saclay data on the elastic scattering of alpha ~(12)C. At the energy T_a~(lab)=1.37 GeV. Using the Glauber's multiple scattering theory, we assume that ~4He-~(12)C scattering is a multiple scattering process between nucleons in projectile ~4He and target nucleus ~(12)C. We don't introduce any free parameter in our calculation. The theoretical differential cross sections are compared with the experimental one. The agreement is satisfactory. It supports strongly the multiple scattering mechanism we have assumed.

我们试图在刚性炮弹近似下,用Glauber方法研究高能核-核碰撞过程。本文具体处理了137GeV的α粒子和~(12)C的弹性散射,认为α-~(12)C的散射是由α粒子与靶核~(12)C内的核子-核子多重散射过程。我们没有引入任何可调参数。计算的微分截面与实验结果进行了比较,符合是满意的,从而支持了多重散射的机制。

Virtual excitation of GR in neutron-nucleus seattering is studied for a particular type of unclei. (Nuclei with a hole in a neutron close shell such as ~(87)Sr.) It is found that for such type of nuclei the contribution to inelastic scattering is important even when the incident neutron energy is arround 3 MeV in contrast to the case of close shell target nuclei as investigated by V. Geramb.For an incident neutron energy E_n~3MeV, besides the compound nucleus formation, the following two processes also contribute...

Virtual excitation of GR in neutron-nucleus seattering is studied for a particular type of unclei. (Nuclei with a hole in a neutron close shell such as ~(87)Sr.) It is found that for such type of nuclei the contribution to inelastic scattering is important even when the incident neutron energy is arround 3 MeV in contrast to the case of close shell target nuclei as investigated by V. Geramb.For an incident neutron energy E_n~3MeV, besides the compound nucleus formation, the following two processes also contribute to the inelastic cross section:The intermediate states involving the virtual excitation of the GR's are treated phenomenologically as well as microscopically. In the former case they are taken to be simple resonances with definite widths. For resonable values of parameters C_(λτ) (or (a_o)_(λτ)), Γ_(λτ) and Δ, the contribution to the inelastic cross section due to GR's is about 10 mb. In the latter case, the GR's are taken to be a collection of 1p1h RPA phonons each with definite width. Here the coupling constant x between phonon and nucleons is taken to be 0.00337 MeV in accordance with the value given by A. Bohr, Again the contribution to the inelastic cross section is about 10 mb. One can therefore expect that this reaction mechanism is present in a variety of reactions besides (n, n') with sizable cross section. The energy of the incident partiele (?) at which the effect of the GR's is expected to be strongest depends on the structure of the target nucleus. For (n, n'). E~hω_(λτ)-S_n where Sn is the neutron seperation energy of the target plus one neutron nuclei in the ground state and hω_(λτ) is energy of GR with isospin τ and multipolarity λ.It is needed further to investigate to what extent the phenomenological treatment of the intermediate states by representing the GR as a single resonance phonon will be valid and what best values for the width should be taken.This has somthing to do with the nature of the GR's when treated as oscillations in the quantum fluid, the nuclear matter of finite extension.

本文研究了在中子-核散射中存在的以GR(巨共振)为中间态的反应机制。在特殊情况下(如~(87)Sr—中子满壳缺一中子的核),入射中子能量E_n~3MeV时,由GR贡献的非弹截面可达10mb。对于不同的靶核,这种反应机制对非弹截面的贡献,在适当入射中子能量(?)时达到最大值,其中(?)=(?)ω_(λτ)—S,S为靶核加入射中子形成的核处于基态时的核子分离能,(?)ω_(λτ)为相应的GR的能量。

 
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