1) fine structure
精细结构
1.
The analytical calculation of the fine structure for n_1sn_2p configuration of helium-like atoms;
氦原子(n_1sn_2p)组态精细结构的解析计算
2.
Relativistic energy,fine structure and wavelength of the low-lying excited state 1s~22p~2~3P~e for a beryllium-like system;
类铍离子激发态1s~22p~2~3P~e的能量、精细结构和跃迁波长的计算
3.
The fine structures of the energy levels for the low- lying excited states of lithium-like atom;
锂原子低激发态能量的精细结构
2) fine-structure
精细结构
1.
Ratios for branching into the fine-structure levels of the Cs 6P multiplet, as a consequence of an optical collision with N2 and He atoms are reported.
研究了Cs(62P)多重态分别与N2、He的光学碰撞中的精细结构分支比,定义分支比为|(D1)/|(D2),|(D1)、|(D2)分别为Cs的D1和D2线的荧光强度。
2.
Based on the tensor expression of the fine-structure Hamiltonian for many-electron atoms,and with the help of the irreducible tensor theory,an analytical method of calculating the fine-structure energy of fluorine-like atoms in the ground state has been established.
以多电子原子精细结构哈密顿的球张量形式为基础,借助不可约张量理论,建立了类氟离子基态精细结构能量的解析表达式。
3.
Based on the tensor expression of the fine-structure Hamiltonian for many-electron atoms,and with the help of irreducible tensor theory,a general analytical theory of calculating the fine structure energy(including spin-orbit interaction,spin-other-orbit interaction and the spin-spin interaction) of many-electron atoms has been established explicitly.
以多电子原子精细结构哈密顿的球张量形式和不可约张量理论为基础,建立了计算多电子原子精细结构(包括自旋-轨道相互作用、自旋-其它轨道相互作用和自旋-自旋相互作用)能量的一般性解析理论形式,应用所建立的理论对类碳体系( Z=6 ～8)基态的精细结构能量进行了具体计算,计算结果与实验数据符合得较好。
3) Fine structures
精细结构
1.
Besides the main lobe structure, our numerical calculations reproduce the fine structures in the angular distribution of ATI peaks observed by Nandor et al.
由于自发辐射的影响 ,电子的角分布具有精细结构 ,成功地解释了Nandor等人的实验观测。
2.
The observational characteristics of the solar fast fine structures and their qualitative mechanism are presented.
主要对 1 557个单个Spike的时间和频率分布作了统计分析 ,着重指出太阳快速精细结构的观测特征并定性地指出其产生机制。
3.
There are two leading fine structures of microwave solar bursts.
微波Ⅲ型爆发和微波尖峰辐射是太阳微波爆发中两个主要的精细结构，由于微波段比长波段的情况更复杂，单从形态上很难区分。
4) fine structure splitting
精细结构
1.
The transition energy of 1s23d-1s2nf(4≤n≤9)and fine structure splitting of 1s2nf(n≤9)states for lithium-like Mn22+ ion are calculated by using the full-core plus correlation method.
用全实加关联方法计算了类锂Mn22+离子1s23d-1s2nf(4≤n≤9)的跃迁能和1s2nf(n≤9)态的精细结构。
2.
The transition energy of 1s23d-1s2nf(4≤n≤9) and fine structure splitting of 1s2nf(n≤9) states for lithium-like Fe23+ ion are calculated by using the full-core plus correlation method.
用全实加关联方法计算了类锂Fe23+离子1s23d-1s2nf(4≤n≤9)的跃迁能和1s2nf(n≤9)态的精细结构。
3.
The transition energy of 1s23d-1s2nf(4≤ n≤9)and fine structure splitting of 1s2nf(n≤9)states for lithium-like Cr~(21+)ion are calculated by using the full-core plus correlation method.
用全实加关联方法计算了类锂Cr21+离子1s23d-1s2nf(4≤n≤9)的跃迁能和1s2nf(n≤9)态的精细结构。
5) fine microstructure
精细结构
1.
In order to reduce quench deformed of car gear, a new kind of microdistortion gear steel is developed and its fine microstructure is discussed by SEM.
结果表明,新型微变形齿轮钢在空冷条件下即可获得具有精细结构的无碳化物贝氏体铁素体束状组织,贝氏体铁素体片条、亚片条及亚单元被残留奥氏体膜包围,这种组织使微变形齿轮钢具有良好的强度和韧性,尤其冲击韧性显著提高。
6) hyperfine structure
超精细结构
1.
The coherent excitation property of a two-level atom with a hyperfine structure in narrow band laser field;
窄带激光与能级具有超精细结构的二能级原子的相干激发
2.
Measurement of hyperfine structure spectrum in 569.08 nm line of ~( 141) Pr~+;
~(141)Pr~+波长569.08nm谱线超精细结构测量
3.
Coherent dynamics of a single two-level atom in laser field: hyperfine structure case;
超精细结构对激光与二能级原子相互作用的影响
补充资料：精细结构
| 精细结构 fine structure 原子中电子自旋-轨道相互作用引起的原子能级的多重分裂结构。通常在一些较轻元素中，这种分裂是精细的，对重元素这种分裂较大。原子中自旋与轨道相互作用，不同的自旋方向引起能量的改变。单电子情形，电子自旋  ，有两个取向，一般能级分裂为两个，能级的精细结构是双重的；两个价电子情形，总自旋S＝0和1，对应的能级精细结构是单态和三重态；同理，3个价电子情形，能级精细结构是双重态和四重态，等等。精细结构的能级裂距与原子序数的平方成正比，与表征精细结构的精细结构常数a的平方成正比。精细结构能级间隔遵从朗德间隔定则，相邻的能级间隔之比同有关的两个总角动量即J值中较大的J值成正比。由此可以确定原子是否属于LS耦合。原子能级的精细结构使得原子跃迁时发出的光谱线也具有精细结构。研究光谱线的精细结构，可获得原子内部自旋-轨道相互作用的信息。 |
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参考词条