Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Ronald J. W. Henry"'
Publikováno v:
Proceedings of Indian National Science Academy, Vol 39, Iss 6A (2015)
An Effective Polarization Potential for Low-Energy Electron-H2 Collisions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::d1ea9e79dafa999ebd0b6ace42b1d107
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/Vol39A_1973_6_Art07.pdf
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/Vol39A_1973_6_Art07.pdf
Autor:
Swaraj Tayal, R. J. Mawhorter, S. J. Smith, K. F. Man, Ara Chutjian, J. Mitroy, Ian Williams, Ronald J. W. Henry
Publikováno v:
Physical Review A. 48:292-309
Electron-excitation cross sections are reported for the 3s 2S yields 3p 2P(h, k) resonance transition in Mg(+) at energies from threshold (4.43 eV) to approximately 9 times threshold (40.0 eV). The electron-energy-loss merged-beams technique used in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57e6a97c045b37b9bca4e707eb11f803
https://doi.org/10.1103/physreva.48.292
https://doi.org/10.1103/physreva.48.292
Autor:
Swaraj Tayal, Ronald J. W. Henry
Publikováno v:
Physical Review A. 44:2955-2959
We have calculated the contributions of excitation-autoionization and resonant-excitation-double-autoionization indirect-ionization mechanisms to electron-impact ionization of Li-like B{sup 2+}, C{sup 3+}, N{sup 4+}, O{sup 5+}, and F{sup 6+} ions. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c206cde3fdc044b9337b1ce0a5bca19
https://doi.org/10.1103/physreva.44.2955
https://doi.org/10.1103/physreva.44.2955
Publikováno v:
Solar Physics. 125:61-65
Recent R-matrix calculations of electron impact excitation rates in Fe xii are used to derive the theoretical emission line ratio R 1 = I(195.1 A)/I(1242 A), which is potentially a useful electron density diagnostic for the solar inner corona (r ≤
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2602a7ff9059ce44b134a759fb286908
https://doi.org/10.1007/bf00154779
https://doi.org/10.1007/bf00154779
Autor:
Swaraj Tayal, Ronald J. W. Henry
Publikováno v:
Physical review. A, Atomic, molecular, and optical physics. 42(3)
Resonances due to a resonant-excitation--double-autoionization process in the electron-impact ionization of C{sup 3+} ions are calculated using the {ital R}-matrix method. Twelve autoionizing states arising from the 1{ital s}2{ital s}{sup 2}, 1{ital
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe88e9c32886487f01d9e3cce754409d
https://pubmed.ncbi.nlm.nih.gov/9904229
https://pubmed.ncbi.nlm.nih.gov/9904229
Publikováno v:
The Astrophysical Journal. 369:567
Relative level populations and the density-sensitive emission-line ratios R 1 = I(186.87 A)/I(193.51 A), R 2 = I(196.64 A)/I(193.51 A), and R 3 = I(191.05 A)/I(193.51 A) are derived using the recent R-matrix calculations of electron impact excitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c99ea7721611b6707c6320247b8afe8
https://doi.org/10.1086/169786
https://doi.org/10.1086/169786
Publikováno v:
Canadian Journal of Physics. 55:442-451
A discussion of the frame-transformation approximation appropriate for prediction of rotational and vibrational excitation cross sections for low-energy e−–1Σ+ systems is described. Explicit quantum number parameterizations of the time-independe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::704488fb2bc598bbd8c58f10336ce6b5
https://doi.org/10.1139/p77-062
https://doi.org/10.1139/p77-062
Autor:
Ronald J. W. Henry
Publikováno v:
Physics Reports. 68:1-91
The current state of theory and its application to excitation of atomic positive ions by electron impact are reviewed. Results of calculations are compared with existing experimental measurements.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ec91f21a2186f1ee5e978889f8fdfe4
https://doi.org/10.1016/0370-1573(81)90121-6
https://doi.org/10.1016/0370-1573(81)90121-6
Autor:
Alfred Z. Msezane, Ronald J. W. Henry
Publikováno v:
Physical Review A. 33:1631-1635
Cross sections are calculated for excitation of Cu for elastic scattering of electrons from the 4s ground state and for excitation to excited states 3d/sup 9/4s/sup 2/, 4p, and 4d. A three-state close-coupling approximation is used for the energy ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e5b0f55c60d9755c62d797a2ae68e2e
https://doi.org/10.1103/physreva.33.1631
https://doi.org/10.1103/physreva.33.1631
Autor:
K. J. Reed, Ronald J. W. Henry
Publikováno v:
Physical Review A. 40:1823-1827
Coupling effects among the channels for collisional excitation of 2/ital s//sup 2/2p/sup 4/, 2/ital s/2/ital p//sup 5/, and 2/ital p//sup 6/ configurations of oxygenlike krypton have been reinvestigated and found to be small. In an earlier publicatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dd6675feb01037c1f81a3c726fc1fb3
https://doi.org/10.1103/physreva.40.1823
https://doi.org/10.1103/physreva.40.1823