Search Results - "Sellin, I.A."

Breakdown of the Independent Particle Approximation in High-Energy Photoionization by Dias, E. W. B., Chakraborty, H. S., Deshmukh, P. C., Manson, Steven T., Hemmers, O., Glans, P., Hansen, D. L., Wang, H., Whitfield, S. B., Lindle, D. W., Wehlitz, R., Levin, J. C., Sellin, I. A., Perera, R. C. C.

“…The independent particle approximation is shown to break down for the photoionization of both inner and outer nl (l > 0) electrons of all atoms, at high enough…”
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On the angular distributions of electrons photoejected from fixed-in-space and randomly oriented molecules by Langhoff, P.W., Arce, J.C., Sheehy, J.A., Hemmers, O., Wang, H., Focke, P., Sellin, I.A., Lindle, D.W.

“…New theoretical expressions are devised from a dynamical perspective for molecular photoionization cross sections differential in electron ejection angles…”
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Electric-octupole and pure-electric-quadrupole effects in soft-X-Ray photoemission by Derevianko, A, Hemmers, O, Oblad, S, Glans, P, Wang, H, Whitfield, SB, Wehlitz, R, Sellin, IA, Johnson, WR, Lindle, DW

“…Second-order [ O(k(2)), k = omega/c] nondipole effects in soft-x-ray photoemission are demonstrated via an experimental and a theoretical study of angular…”
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Photoionization and Compton double ionization of helium from threshold to 20 keV by Levin, JC, Armen, GB, Sellin, IA

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Dipole and nondipole angular-distribution effects in valence photoemission from neon by Hemmers, O., Blackburn, M., Goddard, T., Glans, P., Wang, H., Whitfield, S.B., Wehlitz, R., Sellin, I.A., Lindle, D.W.

“…Nondipole angular-distribution parameters γ and δ for neon 2s and 2p photoelectrons have been measured and are compared to all available theoretical data. The…”
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Erratum to “On the angular distributions of molecular photoelectrons: dipole cross-sections for fixed-in-space and randomly oriented molecules” [Chem. Phys. Lett. 346 (2001) 341] by Arce, J.C., Sheehy, J.A., Langhoff, P.W., Hemmers, O., Wang, H., Focke, P., Sellin, I.A., Lindle, D.W.

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On the angular distributions of molecular photoelectrons: dipole cross-sections for fixed-in-space and randomly oriented molecules by Arce, J.C., Sheehy, J.A., Langhoff, P.W., Hemmers, O., Wang, H., Focke, P., Sellin, I.A., Lindle, D.W.

“…New theoretical expressions are devised employing a dynamical perspective for photoionization cross-sections differential in electron ejection angles for both…”
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Argon-photoion-Auger-electron coincidence measurements following K-shell excitation by synchrotron radiation by Levin, JC, Biedermann, C, Keller, N, Liljeby, L, O, C, Short, RT, Sellin, IA, Lindle, DW

“…Argon photoion spectra have been obtained for the first time in coincidence with {ital K}-{ital LL} and {ital K}-{ital LM} Auger electrons, as a function of…”
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Absolute rates for radiative and non-radiative collisional deexcitation of metastable He+ (2s) in targets of variable polarizability by Sellin, I.A., Levin, J.C., Schmidt, H.T., Schwartz, S.H., Fardi, A., Haghighat, K., Cederquist, H., Liljeby, L., Langereis, A.

“…A method devised to measure separate absolute rates for deexcitation of metastable hydrogenic atoms and ions via radiative (R) and non-radiative (NR, e.g…”
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Validity of the independent-particle approximation in x-ray photoemission: The exception, not the rule by Hansen, D. L., Hemmers, O., Wang, H., Lindle, D. W., Focke, P., Sellin, I. A., Heske, C., Chakraborty, H. S., Deshmukh, P. C., Manson, S. T.

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Measurement of the ratio of double-to-single photoionization of helium at 2. 8 keV using synchrotron radiation by Levin, J.C., Lindle, D.W., Keller, N., Miller, R.D., Azuma, Y., Mansour, N.B., Berry, H.G., Sellin, I.A.

“…We report the first measurement of the ratio of double-to-single photoionization of helium well above the double-ionization threshold. Using a time-of-flight…”
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Inner-shell photoionization of stored positive ions using synchrotron radiation by Kravis, SD, Church, DA, Johnson, BM, Meron, M, Jones, KW, Levin, J, Sellin, IA, Azuma, Y, Mansour, NB, Berry, HG, Druetta, M

“…We have measured the distribution of photoion charge states resulting from vacancy cascades and electron shakeoff following {ital K}-shell photoionization of…”
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Angular momentum distributions of autoionizing states produced by 1.5-5-MeV C+ ions in carbon foils by YAMAZAKI, Y, STOLTERFOHT, N, CHEMIN, J. F, MILLER, P. D, KRAUSE, H. F, PEPMILLER, P. L, DATZ, S, SELLIN, I. A, SCHEURER, J. N, ANDRIAMONJE, S, BERTAULT, D

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Observation of rapid evolution of convoy electron angular distributions by GIBBONS, J. P, ELSTON, S. B, DRUETTA, M, KIMURA, K, DESERIO, R, SELLIN, I. A, BURGDORFER, J, GRANDIN, J. P, CASSIMI, A, XUSSON, X, LILJEBY, L

“…We present results of doubly differntial cross-section measurements for production of convoy electrons from 36-MeV/u Ar ions in thin amorphous carbon targets…”
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Convoy electrons emitted from resonant coherently excited ions by KIMURA, K, GIBBONS, J. P, ELSTON, S. B, BIEDERMANN, C, DESERIO, R, KELLER, N, LEVIN, J. C, BREINIG, M, BURGDOÊRFER, J, SELLIN, I. A

“…We demonstrate the use of selective excitation of fast ions by resonant coherent excitation as a new technique to study convoy electron production. It is shown…”
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Observation of angular correlation between subsequently emitted Auger electrons by Wehlitz, R., Pibida, L. S., Levin, J. C., Sellin, I. A.

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Production of very-low-energy highly charged ions by synchrotron radiation by Short, RT, O, C, Levin, JC, Sellin, IA, Liljeby, L, Huldt, S, Johansson, S, Nilsson, E, Church, DA

“…Very low-energy highly charged ions have been produced by use of white and monochromatic X rays from a wiggler line at the Stanford Synchrotron Radiation…”
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Observation of Mixed-Parity Electric-Dipole Oscillations in Charge Transfer to the n = 2 Hydrogen Levels by Fast Protons in Gases by Sellin, I. A., Liljeby, L., Mannervik, S., Hultberg, S.

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Angular distributions for single- and double-electron capture in slow C[sup 4+]-Ne collisions by Keller, N., Miller, R.D., Westerlind, M., Elston, S.B., Sellin, I.A., Andersson, L.R., Biedermann, C., Cederquist, H.

“…In an earlier experiment by H. Cederquist [ital et] [ital al]. [J. Phys. B 18, 3951 (1985)] an unusual [ital Q]-value distribution for true double-electron…”
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Photofragmentation of third-row hydrides following photoexcitation at deep-core levels by Hansen, D. L., Arrasate, M. E., Cotter, J., Fisher, G. R., Hemmers, O., Leung, K. T., Levin, J. C., Martin, R., Neill, P., Perera, R. C. C., Sellin, I. A., Simon, M., Uehara, Y., Vanderford, B., Whitfield, S. B., Lindle, D. W.

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