Electron collision strengths for all transitions among the n=1, 2, 3, 4 and 5 levels of He+

Electron collision strengths for all transitions among the n=1, 2, 3, 4 and 5 levels of He+
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He 的 n=1、2、3、4 和 5 能级之间所有跃迁的电子碰撞强度

DOI:
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发表时间:
1991
期刊:
影响因子:
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通讯作者:
A. Pathak
A. Pathak
中科院分区:
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文献类型:
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作者:
K. Aggarwal;K. Berrington;A. Kingston;A. Pathak

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据报道,在He+的n=5能级之前,所有态间跃迁的电子碰撞强度都在7 Ryd以下。对角动量为l9的部分波分别采用了r矩阵和无交换程序。强调了碰撞强度的共振,并与现有的理论和实验数据进行了比较。在100,000 K以下的电子温度范围内,对电子速度在麦克斯韦分布上的碰撞强度进行平均后得到的有效碰撞强度为n=4能级的态间跃迁。
Electron collision strengths for all transitions among states up to the n=5 level of He+ are reported in the energy range below 7 Ryd. The R-matrix and no exchange programs have been used for partial waves with angular momentum L 9 respectively. The resonances in the collision strengths are highlighted and comparisons are made with the available theoretical and experimental data. Effective collision strengths obtained after averaging the collision strengths over a Maxwellian distribution of electron velocities are tabulated for transitions among states up to the n=4 level in the electron temperature range below 100000 K.