H Lyman‐α emission from photodissociation of H2O
H Lyman‐α emission from photodissociation of H2O
复制标题
H2O 光解离产生的 H Lyman-α 发射
DOI:
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发表时间:
1978
期刊:
影响因子:
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通讯作者:
P. Guyon
中科院分区:
文献类型:
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作者:
J. Mentall;G. Möhlmann;P. Guyon
Photodissociation of water vapor to produce H(n=2) atoms was examined from threshold to 500 A. The experimental threshold of 813.0 A nearly coincides with the thermodynamic limit. Excitation cross sections rise slowly from threshold to a maximum value of (1.55±0.12) ×10−18 cm2 at ∼709 A and decreases to a negligible value below 550 A. Structure in the excitation function is attributed to predissociation of Rydberg series converging to the ? 2B2 state of H2O+.