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碰撞辐射     
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  collisional radiative
     A new laser experimental phenomenon has been discovered by high repetition rate pulse discharge in the calcium ion and strontium ion vapor, that is, the alternate oscillation of self terminating transition laser pulse and collisional radiative recombination laser pulse. On the basis of analyzing similarities and differences of their prompting mechanisms, some preparatory contrast experimental studies were undertaken.
     通过在钙、锶金属蒸气中的高重复率脉冲放电 ,发现钙离子和锶离子的自终止跃迁激光脉冲和碰撞辐射复合激光脉冲交替振荡的实验现象 ,在分析了它们激励机理异同的基础上进行了初步的实验对比研究
短句来源
     The atomic structure code of Cowan and the spin-orbit-split-arrays model is used to calculate the structure and the emission spectra of the different gold species. On the basis of the simplified collisional radiative model, the charge state and energy level populations was calculated and the synthesized spectra at different electronic temperature are obtained .
     用Cowan的原子结构从头算程序和SOSA模型计算各阶电离的金离子的能级结构和跃迁过程 ,在简化的碰撞辐射模型下求解能级布居数方程 ,计算了给定密度、不同电子温度下的金等离子体的理论合成谱。
短句来源
  collision radiation
     The history and current status of metal vapor lasers excited by pulsed discharge are reviewed. The lasing mechanisms different of self terminating and resonance metastable transitions and collision radiation recombination are explained according to the laser emission process.
     评述了脉冲放电激励的金属蒸气激光的发展历史和现状 ,根据激光发射过程 ,分别阐述了自终止跃迁激光和碰撞辐射复合激光的机理 .
短句来源
  “碰撞辐射”译为未确定词的双语例句
     The fluorescence spectrum of the B3∏2 - X1∑+ transition of InCl has been assigned and the time-resolution spectrum of (0,0) is measured by laser induced fluorescence.
     采用激光诱导荧光技术对InCl分子 B3∏1→X1∑+荧光光谱进行了分析和归属,并对B3∏1(v’=0)→X1∑+(v"=0)的时间分辨谱进行了观测.首次得到InCl分子B2∏1态(v'=0)无碰撞辐射寿命 0≈353ns;
短句来源
     The collision free fluorescence radiative lifetime of τ 0≈11 ns and the electronic transition moment |R e | 2≈5.95D 2 for C 1Π 1 are obtained.
     并对 C1Π1→ X1Σ +的荧光衰变曲线进行了观测 ,得到 In Cl分子 C1Π1(ν′=1)态的无碰撞辐射寿命τ0 ≈ 11ns及电子跃迁矩 |Re|2 ≈ 5.95D2 。
短句来源
     Using the approximation of steady collisional-radiative equilibrium model, the interstage line intensity ratios of the K-shell lines of aluminum were given as a function of electron temperature and density.
     利用稳态碰撞 辐射平衡(CRE)近似条件下的等离子体光谱辐射动力学模型,给出了Al激光等离子体Ly β线与He β线强度比以及Ly γ线与He γ线强度比与电子温度的函数关系。
短句来源
     Secondly, a theoretical model for simulating the the emission and absorbing of X-ray are established basing on the stable collisional-radiative equilibrium and the local thermodynamical equilibrium model.
     其次,建立了稳态碰撞辐射平衡和局域热动平衡条件下的等离子体发射谱和吸收谱理论计算模型,分别对铝、氪和金元素激光等离子的发射光谱以及铝等离子体的吸收谱进行了理论模拟。
短句来源
     The results indicate the error between our work and other theory is less then 10% in the diagnosed electron temperature about 2keV. It is feasible to simulate the average ionized state and ionic abundance and charge state distribution in a highly ionized Au plasma.
     结果表明 :在“神光II”实验装置诊断的电子温度约 2keV ,电子密度约 6× 10 2 1cm-3 范围内 ,这些电子离子碰撞激发参数有利于采用超组态碰撞辐射模型模拟Au的激光等离子体M带 5f~ 3d细致谱的平均电离度和电荷态分布。
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  相似匹配句对
     Stimulated Raman scattering and stimulated collision-induced fluorescence in barium vapor
     钡蒸气的受激喇曼散射及碰撞诱导受激辐射
短句来源
     CHANNELING RADIATION
     沟道辐射
短句来源
     collision inducing width;
     碰撞致宽;
短句来源
     On radiation from printed circuits
     印制电路的辐射
短句来源
     Stimulated collision-induced fluorescence of barium triplex-states
     钡原子三重态的碰撞诱导受激辐射
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  impact radiation
Resonance signals were investigated at various frequencies 200 MHz>amp;lt;ν>amp;lt;800 MHz by scanning a static electric fieldF0?1 kV/cm and observing the intensity of the impact radiation for the singlet or triplet 1s 3d-1s 2p spectral line.
      
Impact radiation of He atoms excited by H2+(D2+) and H3+(D3+) ions was investigated as function of electric fields parallel to the ion beam for the spectral lines at λ(31D → 21P) = 668 nm and λ(33D → 23P) = 588 nm.
      
Level-crossing signals of impact radiation of He I have been analyzed with regard to the determination of excitation matrices.
      
  collisional radiative
Development of a collisional radiative model for interpreting the spectroscopic measurements of ArII line emission
      
A collisional radiative model for an ArII ion is constructed.
      
Models based on collisional radiative theory are used to investigate these features.
      
We have investigated the Ne-like yttrium collisionally pumped laser using a detailed time dependent collisional radiative model within a fluid code (EHYBRID), and post-processors to investigate the effects of refraction and saturation.
      
Population densities of HeI and HeII excited states are calculated from a collisional radiative model for non-LTE optically thin helium plasmas.
      
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When matter,especially high Z-element, is heated to high tempersture, it will be ionized many times. The degree of ionization has a strong effect on many plasma properties.So we need an approximate method to calculate mean ionization degree in many practical problems.In this paper, an analytical expression which is convenient for the approximate numerical calculation, is given by fitting it to the scaling law and numerical results of the ionization potential of Thomas-Fermi statistical model. In LTE case, the...

When matter,especially high Z-element, is heated to high tempersture, it will be ionized many times. The degree of ionization has a strong effect on many plasma properties.So we need an approximate method to calculate mean ionization degree in many practical problems.In this paper, an analytical expression which is convenient for the approximate numerical calculation, is given by fitting it to the scaling law and numerical results of the ionization potential of Thomas-Fermi statistical model. In LTE case, the degree of ionization of Au calculated by the approximate method of Ref.(2) is in agreement with that of the averageion model. By extending the approximate method to Non-LTE case, the degree of ionization of Au is similarly calculated according to Corona model and Collision-Radiation model(C-R). The results of Corona model agree with the published data quite well, while the results of "C-R approach those of Corona model as the density is reduced and approach those of LTE as the density is increased. Finally, all approximately calculated results of ionization degree of Au and the comparision of them are given in figures and tables.

当物质被加热到高温时,特别是高Z元素都要产生多次电离。电离度对等离子体的很多性质都有重要影响。因此,为了解决等离子体的很多实际问题,需要寻求一种计算平均电离度的近似方法。在本文中,首先将文献[1]给出的Thomas-Fermi统计模型电离势的标度律和数值结果用函数逼近,给出了一个便于近似数值求解的解析表达式,然后利用文献[2]给出多次电离的近似计算方法,计算了Au元素LTE情况下的电离度,结果与平均离子模型的计算结果符合得很好。另外,我们将近似方法推广到non-LTE情况,根据电晕模型和碰撞-辐射模型对Au的电离度作了类似的计算。电晕模型的计算结果与文献[1]发表的数据符合得十分好;而碰撞-辐射模型的计算结果随着密度的降低趋近电晕模型的结果,而随着密度的升高趋近于LTE的结果。最后以图表的形式给出了Au元素电离度的所有计算结果及其比较。

A collisional-radiative numerical model is developed for studies of radiative losses and ion abundances in aluminum plasmas. Atomic processes such as collisional ionization and recombination, collisional excitation and dexcitation, radiation recombination, and spontaneous radiation are included. The dynamic results of ion abundances, radiation losses are discussed under the approximation of constant ion density and optically thin condition.

建立了一个用于研究Al等离子体中的离子丰度和辐射损失的碰撞辐射模型,模型考虑了碰撞电离和复合,碰撞激发和退激发,辐射复合和自发辐射跃迁等原子过程,在恒离子密度和光性薄近似下,讨论了该模型给出的离子丰度和辐射损失的动态结果。

The energy level population rate equations are solved in collisional-radiational (CR) model, when the ground state of MgX, MgXII, MgXIII and the 21 energy levels of MgXI, of which the main quantum number n are lower than or equal to 6, are included, and the electron temperature drops vs time in Gaussian profile are assumed Then the variations of ASE gain coefficient of transition 1s3p-1s4d, 1s3d-1s4f in MgXI plasma with time are given.

本文采用碰撞辐射模型,考虑MgX,MgXII,MgXIII的基态及MgXI主量子数n≤6到光谱项层次的21个能级,假定等离子体电子温度按高斯函数随时间下降,用初始温度下定态能级占据数速率方程的解作初值,求解瞬态能级占据数速率方程,根据各能级粒子数的时间分布分析了MgXI1s3p—1s4d,1s3d—1s4f跃迁的自发辐射放大增益系数的时间特性。

 
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