Zobrazeno 1 - 10
of 95
pro vyhledávání: '"P H Heckmann"'
Autor:
Roger Hutton, Eric H. Pinnington, Elmar Träbert, J. Doerfert, J. A. Kernahan, P H Heckmann, J Granzow
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:2647-2659
Levels of Ca ions with one, two or four electrons in the n = 3 shell have been studied for their decay properties and lifetimes. For the levels of Ca X and the level of Ca IX, arbitrarily normalized decay curve (ANDC) and cascade model analyses yield
Publikováno v:
Physica Scripta. 50:254-257
Prompt and delayed beam-foil spectra have been recorded in the wavelength range of the 3d94s2-3d94s4p transitions in Cu I-like Rh XVII. The wavelength predictions from the Cowan HFR code allow us to identify most of the lines which originate from lon
Publikováno v:
Physica Scripta. 48:593-597
The decays of the high angular momentum, high spin 4F0 states of the electron configuration 3s3p3d in aluminium-like ions (with three electrons outside a closed shell) have been identified in delayed spectra of foil excited Ti, Fe and Ni ion beams. T
Autor:
R Myrnäs, M Brandt, Indrek Martinson, J Granzow, Roger Hutton, Elmar Träbert, P H Heckmann, J Meurisch, J. Doerfert
Publikováno v:
Physica Scripta. 48:580-585
Prompt and delayed beam-foil spectra have been recorded in the wavelength range of the 3s23p5-3s23p4 3d transitions in Cl-like ions of the elements Mn through Zn. A comparison with simulated spectra reveals the presence of foreign intercombination li
Autor:
Elmar Träbert, S. Fülling, Reinhard F. Bruch, E.A. Rauscher, I.L. Beigman, James H. McGuire, P H Heckmann
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 26:L413-L417
The authors have determined absolute cross sections for ionization-excitation of He by energetic electron and proton projectiles. Using a semi-empirical analytic formula the authors have been able to decompose their He+ (np) cross section data in lea
Publikováno v:
Physica Scripta. 47:780-783
Decay curves of the intercombination line 4s2 1S0-4s4p P1o in the Zn-like ions Rh15+ and Ag17+ have been recorded and analyzed for the lifetime of the 4s4p 3P1o level. The new lifetime data for Rh and Ag as well as other recent data for lighter eleme
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 25:L353-L358
Radiative autoionization (RA) of the 2p3 4So state in the He- ion has been predicted to result in a narrow spectral feature near lambda =32.315 nm. The authors have observed a weak, line-like structure at lambda =(32.32+or-0.02) nm, in spectra of foi
Publikováno v:
Physica Scripta. 46:36-39
The 3d94s2 2DJ levels in Cu-like ions are central to an X-ray laser scheme proposed by Morley and Sugar. Recent decay curve data on these levels, obtained from foil-excited ions of Nb, Mo and Ag indicated the presence of strong cascades from long-liv
Publikováno v:
Physica Scripta. 45:430-435
In continuation of our previous work on doubly-excited ions with three and four electrons we present the first results on optical transitions in the term system of doubly-excited ions with five electrons. Transitions between such sextet states were i
Publikováno v:
Physica Scripta. 44:436-441
In continuation of our previous work on the quintet transitions 1s2s2p2 5P-1s2s2p3d 5Po, 5Do, results on other n = 2 - n' = 3 quintet transitions for elements N, O and F are presented. Assignments have been established by comparison with Multi-Config