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Semiempirical studies of atomic structure

Description: The energy level structure, transition probabilities, and general spectroscopic properties of highly-ionized many-electron systems are studied through the combined use of sensitive semiempirical data systematizations, selected precision experimental measurements, and specialized theoretical computations. Measurements are made primarily through the use of fast ion beam excitation methods, which are combined with available data from laser- and tokamak-produced plasmas, astrophysical sources, and … more
Date: January 1, 1992
Creator: Curtis, L.J.
Partner: UNT Libraries Government Documents Department
open access

Measurements of scattering processes in negative ion-atom collisions

Description: This Technical Progress Report describes the progress made on the research objectives during the past twelve months. This research project is designed to provide measurements of various scattering processes which occur in H{sup {minus}} collisions with atomic (specifically, noble gas and atomic hydrogen) targets at intermediate energies. These processes include: elastic scattering,single- and double-electron detachment, and target excitation/ionization. For the elastic and target inelastic proc… more
Date: January 1, 1992
Creator: Kvale, T.J.
Partner: UNT Libraries Government Documents Department
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Semiempirical studies of atomic structure. [Dept. of Physics and Astronomy, Univ. of Toledo]

Description: The energy level structure, transition probabilities, and general spectroscopic properties of highly ionized many-electron systems are studied through the combined use of sensitive semiempirical data systematizations, selected precision experimental measurements, and specialized theoretical computations. Measurements are made primarily through the use of fast ion beam excitation methods, which are combined with available data from laser-and tokamak-produced plasmas, astrophysical sources, and c… more
Date: January 1, 1992
Creator: Curtis, L.J.
Partner: UNT Libraries Government Documents Department
open access

Semiempirical studies of atomic structure. Progress report, 1 March 1992--15 December 1992

Description: The energy level structure, transition probabilities, and general spectroscopic properties of highly ionized many-electron systems are studied through the combined use of sensitive semiempirical data systematizations, selected precision experimental measurements, and specialized theoretical computations. Measurements are made primarily through the use of fast ion beam excitation methods, which are combined with available data from laser-and tokamak-produced plasmas, astrophysical sources, and c… more
Date: December 31, 1992
Creator: Curtis, L. J.
Partner: UNT Libraries Government Documents Department
open access

Measurements of scattering processes in negative ion-atom collisions. Technical progress report, 1 September 1992--31 August 1993

Description: This Technical Progress Report describes the progress made on the research objectives during the past twelve months. This research project is designed to provide measurements of various scattering processes which occur in H{sup {minus}} collisions with atomic (specifically, noble gas and atomic hydrogen) targets at intermediate energies. These processes include elastic scattering, single- and double-electron detachment, and target excitation/ionization. For the elastic and target inelastic proc… more
Date: May 1, 1993
Creator: Kvale, T. J.
Partner: UNT Libraries Government Documents Department
open access

Measurements of scattering processes in negative ion: Atom collisions. Technical progress report, 1 September 1991--31 December 1994

Description: This report describes the progress made on the research objectives during the past three years of the grant. This research project is designed to study various scattering processes which occur in H{sup {minus}} collisions with atomic (specifically, noble gas and atomic hydrogen) targets in the intermediate energy region. These processes include: elastic scattering, single- and double-electron detachment, and target excitation/ionization. For the elastic and target inelastic processes where H{su… more
Date: September 27, 1994
Creator: Kvale, T. J.
Partner: UNT Libraries Government Documents Department
open access

Measurements of scattering processes in negative ion-atom collisions. Technical progress report, 1 September 1991--31 August 1992

Description: This Technical Progress Report describes the progress made on the research objectives during the past twelve months. This research project is designed to provide measurements of various scattering processes which occur in H{sup {minus}} collisions with atomic (specifically, noble gas and atomic hydrogen) targets at intermediate energies. These processes include: elastic scattering,single- and double-electron detachment, and target excitation/ionization. For the elastic and target inelastic proc… more
Date: April 1, 1992
Creator: Kvale, T. J.
Partner: UNT Libraries Government Documents Department
open access

Measurements of scattering processes in negative ion - atom collisions. Technical progress report - year 1, April 1, 1995--March 31, 1996

Description: This Technical Progress Report describes the progress made on the research objectives during the past twelve months. The objective of this research project is to provide absolute cross section measurements of various scattering processes which occur in negative ion collisions with atomic (specifically, noble gas and atomic hydrogen) targets at intermediate energies. These processes include: elastic scattering, single- and double-electron detachment, and target-inelastic processes of excitation … more
Date: December 1, 1995
Creator: Kvale, T.J.
Partner: UNT Libraries Government Documents Department
open access

Measurements of scattering processes in negative ion-atom collisions. [3 to 50 keV]

Description: This Technical Progress Report describes the progress made on the research objectives during the past twelve months. This research project is designed to provide measurements of various scattering processes which occur in H[sup [minus]] collisions with atomic (specifically, noble gas and atomic hydrogen) targets at intermediate energies. These processes include elastic scattering, single- and double-electron detachment, and target excitation/ionization. For the elastic and target inelastic proc… more
Date: January 1, 1993
Creator: Kvale, T.J.
Partner: UNT Libraries Government Documents Department
open access

Semiempirical studies of atomic structure. Progress report, 1 September 1990--1 March 1992

Description: The energy level structure, transition probabilities, and general spectroscopic properties of highly-ionized many-electron systems are studied through the combined use of sensitive semiempirical data systematizations, selected precision experimental measurements, and specialized theoretical computations. Measurements are made primarily through the use of fast ion beam excitation methods, which are combined with available data from laser- and tokamak-produced plasmas, astrophysical sources, and … more
Date: March 1, 1992
Creator: Curtis, L. J.
Partner: UNT Libraries Government Documents Department
open access

Semiempirical studies of atomic structure. Progress report, 1 July 1991--1 October 1993

Description: Atomic structure/properties of highly ionized many-electron systems are studied using sensitive semiempirical data systematization, experiment, and theory. Measurements are made using fast ion beams, combined with data from laser- and tokamak-produced plasmas, astrophysical sources, and light sources. Results during this 3-y period are discussed under the following headings: Invited review article (decay rates in systems of negative ions to very heavy one-electron ions), fast ion beam lifetime … more
Date: October 1, 1993
Creator: Curtis, L. J.
Partner: UNT Libraries Government Documents Department
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High-efficiency thin-film cadmium telluride photovoltaic cells. Annual subcontract report, January 20, 1995--January 19, 1996

Description: This annual report covers the second year of a 3-year NREL subcontract with the University of Toledo that is focused on improvements in efficiency for radio frequency (rf)-sputtered CdS/CdTe solar cells. In earlier work supported by NREL, the University of Toledo established the viability of two new deposition methods for CdS/CdTe solar cells by fabricating cells with efficiencies greater than 10% at air mass (AM) 1.5 on soda lime glass for all-sputtered cells and also for all-laser-deposited c… more
Date: May 1, 1996
Creator: Compaan, A. D.; Bohn, R. G. & Contreras-Puente, G.
Partner: UNT Libraries Government Documents Department
open access

Spectral distribution of the two-photon decay of He-like krypton

Description: We report Progress on a measurement of the spectral distribution of photons from the two-photon decay of the 2{sup 1}S{sub 0} level in heliumlike krypton. A measurement of the exact shape of the continuum singles spectrum of the two-photon decay in heliumlike ions provides a sensitive probe of the calculation of the transition probability. In our experiment a beam of Kr{sup 34+} ions is excited using a thin carbon foil and the subsequent decays are observed in an array of four x-ray detectors.
Date: October 1, 1994
Creator: Ali, R.; Ahmad, I. & Berry, H. G.
Partner: UNT Libraries Government Documents Department
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