Zobrazeno 1 - 10
of 38
pro vyhledávání: '"P. L. Altick"'
Publikováno v:
Physical Review A. 53:4176-4182
Double electron transfer processes for the system Fe{sup 17+}+He have been studied utilizing high-resolution Auger electron spectroscopy. A thorough analysis of the experimental conditions (single collision condition and metastable fraction content a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4095981536b1c97db6c9a8cde17fe843
https://doi.org/10.1103/physreva.53.4176
https://doi.org/10.1103/physreva.53.4176
Autor:
P L Altick, A Franz
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 28:4639-4649
Theoretical Born-approximation total cross sections are presented for the simultaneous ionization and excitation to the 2p state of the helium atom under electron impact. Cross sections are computed to 1000 eV incident electron energy. These results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f699fbfd80d57a9dad370539cefdaf86
https://doi.org/10.1088/0953-4075/28/21/011
https://doi.org/10.1088/0953-4075/28/21/011
Autor:
D W Chang, P L Altick
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 28:1049-1057
A variant of the Born approximation is used to calculate doubly differential and total ionization cross sections for the (e, 2e) interaction between an electron and the alkali atoms, lithium through rubidium. The calculation is done for the ionizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92daca1d0798ecb50d7183c0e47b11c7
https://doi.org/10.1088/0953-4075/28/6/018
https://doi.org/10.1088/0953-4075/28/6/018
Publikováno v:
Physical Review A. 48:R22-R25
We report a theoretical calculation for electron-impact ionization of atoms that includes short-range electron-atom effects for wave functions that satisfy the exact asymptotic boundary conditions. Results of this theory, which we label as the three-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da0bbde371c1e75f95f212097c9fff6d
https://doi.org/10.1103/physreva.48.r22
https://doi.org/10.1103/physreva.48.r22
Autor:
P L Altick, A Franz
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 25:L257-L261
A calculation of simultaneous ionization and excitation to the n=2 state of helium by electron impact is presented. This process requires three electrons to change their state, but can nevertheless be realized by a first-order theory using correlated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10aa7728ff3e938c710546362709afcd
https://doi.org/10.1088/0953-4075/25/10/005
https://doi.org/10.1088/0953-4075/25/10/005
Autor:
A Franz, P L Altick
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 25:1577-1590
The authors calculate the triply differential cross section (TDCS) for electron impact ionization of helium in the coplanar (Ehrhardt-type) geometry with asymmetric excess energy partitioning. The impact energy of the projectile electron is six to tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f0fb8aeb2fa432e65659b34cd73738c
https://doi.org/10.1088/0953-4075/25/7/026
https://doi.org/10.1088/0953-4075/25/7/026
Autor:
M Tong, P L Altick
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 25:741-750
The triply differential cross section for electron impact ionization of hydrogen has been calculated in higher order starting from a formulation of Brauner et al. (1989). The short range effects missing from a first order calculation are included by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2e3174984f9fb26d2323a0b42029d91
https://doi.org/10.1088/0953-4075/25/3/020
https://doi.org/10.1088/0953-4075/25/3/020
Autor:
Dietmar Cordes, P. L. Altick
Publikováno v:
Physical Review A. 41:5213-5216
The partial photoionization cross sections (1{ital s}-2{ital p}){sup 1}{ital P}{r arrow}(1{ital s}-{ital ks}){sup 1}{ital S},(2{ital s}-{ital ks}){sup 1}{ital S}, (2{ital p}-{ital kp}){sup 1}{ital S} are computed in the vicinity of the (3,3{ital b})
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f8445d6d3810dbd449f219af98771ee
https://doi.org/10.1103/physreva.41.5213
https://doi.org/10.1103/physreva.41.5213
Publikováno v:
AIP Conference Proceedings.
Spin‐nonconserving electron transfer processes violating the ‘‘Wigner rule’’ have been studied for slow multiply charged ion‐atom collisions. Experimentally a strong population of highly metastable sodium‐like quartet states in low ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9115ee051093c2004948ac2f0415acb1
https://doi.org/10.1063/1.43708
https://doi.org/10.1063/1.43708
Publikováno v:
(e, 2e) & Related Processes ISBN: 9789401049016
We report triply-differential cross sections (TDCS) for the single ionization of atomic hydrogen and helium by electron impact for intermediate energy, coplanar asymmetric geometry. The theory employs a 3-body final state wavefunction which includes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7a06be823466dd1fb42cf327f0846bc
https://doi.org/10.1007/978-94-011-2036-4_11
https://doi.org/10.1007/978-94-011-2036-4_11
