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氢的非对称同位素替代分子与不同能量氦原子碰撞微分截面的理论计算 被引量:1

Calculation of Cross Section for Rotational Excitation in He-HD Collisions
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摘要 作者用密耦方程 (closecouplingequation)研究和计算了氦与氢的非对称同位素替代分子HD碰撞 .当入射氦原子能量分别为 0 .0 5eV ,0 .1 5eV和 0 .2 5eV时 ,考虑到非对称同位素替代时质心偏移量对势能函数的影响 ,计算了 0 0 0 0弹性碰撞和 0 0 0 1 ,0 0 0 2非弹性碰撞的微分截面 . Using close coupling calculations method,the differential cross section for rotational excitation in He-HD collisions have been obtained at E=0.05eV,0.15eV,0.25eV. The asymmetric isotopic substitution has been considered in the calculation.
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2004年第4期803-806,共4页 Journal of Sichuan University(Natural Science Edition)
基金 国家自然科学基金 (10 74 0 5 5 ) 四川省教育厅重点项目基金 (2 0 0 2A0 80 2 0 0 3A0 77)
关键词 非对称同位素替代分子 微分截面 转动激发 isotopic substitution differential cross section rotational excitation
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参考文献6

  • 1[1]Collins C B, Johnson B W. Study of excitation transfer in a flowing Helium after glow pumped with a tunable dye laser. Ⅱ .Measurement of the rate coefficient for the rotational[J]. J. Chem. Phys, 1972,37(12):5317- 5321.
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  • 5周晓林,杨向东,蒋德琼,冯一兵.氢(氘、氚)的非对称同位素替代分子与低能氦原子(E=0.1eV)碰撞分波截面研究和计算[J].原子与分子物理学报,2003,20(3):376-380. 被引量:5
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二级参考文献8

  • 1Collins C B,Johnson B W. Study of excitation transfer in a flowing Helium after glow pumped with a tunable dye laser.Ⅱ .Measurement of the rate coefficient for the rotationsl[J]. J. Chem. Phys. ,1972, 37(12):5 317-5 321.
  • 2Petersdon L M, Lindgulst G H and Arnold C B. Rotational relaxation measurements of laser excited Hydrogen fluoride[J]. J.Chem. Phys., 1974, 61(8):3 840-3 843.
  • 3Alkins D L, Fink E H and Moore C B. Rotation-translation energy transfer between individual quantum states of HD(B1ΣU^+)^*[J]. J. Chem. Phys., 1970, 52(1):1 604-1 605.
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  • 5Tang K T and Toennies J P. A simple theory model for the van der waals potential at in termediate distance. Ⅳ, The bond distance dependence of the potential hypersurfaces for He - H2 and Ne - H2 also for the repulsive region[J]. J. Chem. Phys.,1982, 76(5) :2 524-2 536.
  • 6杨向东,芶清泉.低能电子被氦、氖和氩原子散射的角分布计算[J]原子与分子物理学报,1987(03).
  • 7杨向东,芶清泉.慢电子被硅烷分子散射的总截面和动量转移截面的计算[J]原子与分子物理学报,1987(02).
  • 8杨向东.He-H_2碰撞振动和转动激发截面的理论计算[J].中国科学(A辑),1990,21(8):833-843. 被引量:28

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