8 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Rare Gases 640305* -- Atomic, Molecular & Chemical Physics-- Atomic & Molecular Theory-- -1987"  
Results: 1 - 8
open access

Low-pressure appraoch to the formation and study of exciplex systems. [VPI and SU, Blacksburg, Virginia]

Description: Studies on the formation and properties of new materials for high-energy, gas-phase lasers are described. Attention is directed mainly to systems having bound excited states but unbound ground states. An important class of such excimer/exciplex systems has a van der Waals dimer/oligomer as its ground state. This research attempts to probe the relative rates of electron pumping of excited-state manifolds and the preferentially pumped vibronic states within each manifold. Reactive quenching of em… more
Date: November 1, 1977
Creator: Sanzone, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Transition Probabilities for Atoms

Description: Current status of advanced theoretical methods for transition probabilities for atoms and ions is discussed. An experiment on the f values of the resonance transitions of the Kr and Xe isoelectronic sequences is suggested as a test for the theoretical methods.
Date: 1980-23~
Creator: Kim, Y. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Investigations of the potential functions of weakly bound diatomic molecules and laser-assisted excitive Penning ionization

Description: Three variations on the Dunham series expansion function of the potential of a diatomic molecule are compared. The differences among these expansions lie in the choice of the expansion variable, lambda. The functional form of these variables are lambda/sub s/ = l-r/sub e//r for the Simon-Parr-Finlan version, lambda/sub T/ - 1-(r/sub e//r)/sup p/ for that of Thakkar, and lambda/sub H/ = 1-exp(-rho(r/r/sub e/-1) for that of Huffaker. A wide selection of molecular systems are examined. It is found… more
Date: May 1, 1982
Creator: Goble, J.H. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

General multi-configuration Hartree--Fock program: MCHF77. [In FORTRAN (double precision) for IBM 360 and 370]

Description: This technical report contains a listing of a general program for multi-configuration Hartree--Fock (MCHF) calculations, including its documentation. Several examples are given showing how the program may be used. Typical output for several cases is also presented. This program has been tested over an extended period of time for a large variety of cases. This program is written for the IBM 360 or 370 in double-precision arithmetic.
Date: November 1, 1977
Creator: Fischer, C F
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mayer-Fermi Theory and the Long Sequences in the Periodic Table

Description: Changes in the radial wave functions for d electrons which occur preceding the onset of the transition series of elements and for f electrons preceding the onset of the lanthanide and actinide series are examined. The sensitivity of the radial wave functions to variations in the effective potential is discussed, and the large variation in the radial wave functions between the LS terms of certain types of excited configurations in these regions of the periodic system is analyzed. Several example… more
Date: January 1, 1986
Creator: Griffin, D. C.; Cowan, R. D. & Pindzola, M. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Theoretical studies of highly ionized species. Progress report, March 1, 1980-February 28, 1981

Description: The calculations of the charge transfer recombination and ionization rate coefficients for a wide range of ionic systems in collision with hydrogen and helium at thermal energies were completed. For the carbon ions in hydrogen, the calculations were extended to energies of 100 eV. The importance of the processes in ionized plasmas was demonstrated by studies of the solar corona and of shock waves. Preliminary results were obtained on cross sections for the excitation of fine structure transitio… more
Date: October 1, 1980
Creator: Dalgarno, A. & Victor, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Theoretical studies of highly ionized species. Progress report, March 1, 1977--February 28, 1978

Description: The relativistic random phase approximation has been used to study the helium, beryllium, magnesium and zinc isoelectronic sequences. Model potential methods have been employed to study multi-photon ionization of sodium from the ground and excited states. Forbidden decays in the Be and Mg isoelectronic sequences have been investigated. The 1s2p/sup 2/ /sup 2/P and 1s2p/sup 2/ /sup 2/D states of lithium-like ions have been studied. Calculations of radiative charge transfer have been carried out.
Date: November 1, 1977
Creator: Dalgarno, A. & Victor, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen