Abstract
Absolute emission cross sections of the Paschen-α line from H (4S,4P,4D,4F) produced in e-H2 collisions have been determined to be 4.31-10.1 × 10-20 cm2 at 20-100 eV by utilizing the Balmer-α emission cross sections as the standard; these values are about half those of the Balmer-β emission. From these values, the formation cross section of the 4F state has been first determined, together with the angular momentum distributions, which are the fraction of the formation cross sections of the 4S, 4P, 4D, and 4F state. The 4F state had appreciable cross sections at electron energies below 24 eV and was assigned to be produced from the singly-excited states of H2 . In the doubly-excited state channel opening above 27-32 eV, the 4P and 4D states are preferentially produced, and the 4F state is suppressed.
| Original language | English |
|---|---|
| Pages (from-to) | 1147-1151 |
| Number of pages | 5 |
| Journal | Journal of Chemical Physics |
| Volume | 107 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jul 22 1997 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
Cite this
Absolute emission cross sections of the Paschen-α line and production dynamics of the 4F state of the excited hydrogen atom in e-H2 collisions. / Yonekura, Nobuaki; Furuya, Kenji; Nakashima, Keiji; Ogawa, Teiichiro.
In: Journal of Chemical Physics, Vol. 107, No. 4, 22.07.1997, p. 1147-1151.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Absolute emission cross sections of the Paschen-α line and production dynamics of the 4F state of the excited hydrogen atom in e-H2 collisions
AU - Yonekura, Nobuaki
AU - Furuya, Kenji
AU - Nakashima, Keiji
AU - Ogawa, Teiichiro
PY - 1997/7/22
Y1 - 1997/7/22
N2 - Absolute emission cross sections of the Paschen-α line from H (4S,4P,4D,4F) produced in e-H2 collisions have been determined to be 4.31-10.1 × 10-20 cm2 at 20-100 eV by utilizing the Balmer-α emission cross sections as the standard; these values are about half those of the Balmer-β emission. From these values, the formation cross section of the 4F state has been first determined, together with the angular momentum distributions, which are the fraction of the formation cross sections of the 4S, 4P, 4D, and 4F state. The 4F state had appreciable cross sections at electron energies below 24 eV and was assigned to be produced from the singly-excited states of H2 . In the doubly-excited state channel opening above 27-32 eV, the 4P and 4D states are preferentially produced, and the 4F state is suppressed.
AB - Absolute emission cross sections of the Paschen-α line from H (4S,4P,4D,4F) produced in e-H2 collisions have been determined to be 4.31-10.1 × 10-20 cm2 at 20-100 eV by utilizing the Balmer-α emission cross sections as the standard; these values are about half those of the Balmer-β emission. From these values, the formation cross section of the 4F state has been first determined, together with the angular momentum distributions, which are the fraction of the formation cross sections of the 4S, 4P, 4D, and 4F state. The 4F state had appreciable cross sections at electron energies below 24 eV and was assigned to be produced from the singly-excited states of H2 . In the doubly-excited state channel opening above 27-32 eV, the 4P and 4D states are preferentially produced, and the 4F state is suppressed.
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U2 - 10.1063/1.474460
DO - 10.1063/1.474460
M3 - Article
AN - SCOPUS:0141632025
VL - 107
SP - 1147
EP - 1151
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 4
ER -