Determination of the H-H_2 Potential from Integral Cross Section Measurements at Thermal Energy

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概要

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• The velocity dependence of the integral cross section for scattering of H atom by H_2 molecule was measured in the velocity range 1.62 to 5.76 km/sec. For detection of H atoms a ZnO single crystal was used, which showed high sensitivity and selectivity for h atoms. The experimental data were analyzed in terms of the three parameter exp(α,6) potential, by combining the data with absolute integral cross sections measured by Gengenbach et al. for D-H_2 scattering. The exp(12,6) potential (α=12, ε=1.78 meV, R_m=3.52 Å) and the exp(13,6) potential (α=13, ε=2.10 meV, R_m3.42 Å) reproduced the experimental results equally well (ε is the well depth and R_m the location of the potential minimum). Further measurements at lower velocities were found to be essential for the unique determination ments at lower velocities were found to be essential for the unique determination of the parameters.

• 社団法人日本物理学会の論文
• 1976-11-15

著者

• Hishinuma Naoshi

  Institute Of Physics College Of General Education University Of Tokyo

関連論文

• Relative Cross Section of a ^2P_ Ion to a ^2P_ Ion in Kr^+-Kr and Xe^+-Xe Charge Transfer Reactions
• Relative Charge Transfer Efficiencies of ^2P_ and ^2P_ Rare-Gas Ions in Their Own Gases
• Determination of the H-H_2 Potential from Integral Cross Section Measurements at Thermal Energy

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