Zobrazeno 1 - 10
of 93
pro vyhledávání: '"J. Doerfert"'
Publikováno v:
Physica Scripta. 66:150-158
In spectra obtained from foil-excited and laser-produced plasmas, we have identified 70 new lines as belonging to the spectra of fluorine-like scandium and vanadium ions, Sc XIII and V XV The new lines in the wavelength region from 70 to 600 Angstrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c815d0d333af2d64dede3725960fe854
https://doi.org/10.1238/physica.regular.066a00150
https://doi.org/10.1238/physica.regular.066a00150
Autor:
C. Kozhuharov, T. Bartsch, O. Uwira, T. Winkler, W. Spies, F. Bosch, Alexander Wolf, Daniel Wolf Savin, M. Steck, A. A. Saghiri, William Graham, Zbigniew Stachura, G.H. Dunn, Th. Stöhlker, H. Knopp, R. Schuch, W. Zong, C. Brandau, H. Gao, Alfred Müller, A. Hoffknecht, H. Lebius, M. Schmitt, F. Nolden, D. R. DeWitt, Håkan Danared, P.H. Mokler, Dirk Schwalm, J. Doerfert, B. Franzke, Stefan Schippers, J.A. Tanis, J. Linkemann
Publikováno v:
Hyperfine Interactions. 114:229-235
New recombination experiments with merged cold beams of electrons and atomic ions have been carried out at the storage ring facilities TSR in Heidelberg, ESR in Darmstadt, and CRYRING in Stockholm. A brief overview is given on the recent activities i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c2a547889fd0a2e87834dcb7512aee3
https://doi.org/10.1023/a:1012643109911
https://doi.org/10.1023/a:1012643109911
Publikováno v:
Physical Review Letters. 78:4355-4358
The electric dipole intercombination decay of the 2s2p {sup 3}P{sup 0}{sub 1} level in the Be-like ion C{sup 2+} has been optically observed with ions circulating in a heavy-ion storage ring. The measured transition probability of (102.94{plus_minus}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9728aa7f3610cef592709441998beda1
https://doi.org/10.1103/physrevlett.78.4355
https://doi.org/10.1103/physrevlett.78.4355
Autor:
Daniel Wolf Savin, T. Bartsch, William Graham, A. Wolf, O. Uwira, J. Doerfert, R. Schuch, Alfred Müller, D. Schwalm, J. Linkemann, W. Zong, C. Brandau, H. Lebius, M. Schmitt
Publikováno v:
Hyperfine Interactions. 108:149-154
Recombination of Au49+, Au50+, and Au51+ ions has been studied at the TSR. With Au50+ ions a storage lifetime of only 2 to 4 s was observed with the magnetically expanded electron beam of the cooler at a density of ne = 107 cm-3. This short storage t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28d92efcda81ad22e7294554453ec0a5
https://doi.org/10.1023/a:1012694209176
https://doi.org/10.1023/a:1012694209176
Publikováno v:
Scopus-Elsevier
Millisecond lifetimes of excited levels in multicharged ions may be measured at ion storage rings. At the Heidelberg ion storage ring TSR, particle detection after collisions between the circulating ions and electrons of the cooler has been used to o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1d6a08803a2430d8f93479b0f212ffd
https://doi.org/10.1007/bf02274919
https://doi.org/10.1007/bf02274919
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93498f206f30a74a6ded6d3035ae6598
https://doi.org/10.1088/0953-4075/29/13/005
https://doi.org/10.1088/0953-4075/29/13/005
Autor:
P. Rymuza, Elmar Träbert, J. Doerfert, J Granzow, Roger Hutton, R. Büttner, Lars Engström, U. Staude, K.-H. Schartner
Publikováno v:
Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 32:295-303
N=3, Δn=0 transitions in Na-like ions have been observed and the resonance level lifetimes have been measured by time-resolved spectroscopy of foil-excited ion beams of Xe (Z=54) and Au (Z=79). Other lines in the same wavelength range are identified
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c47180262014259d65bbae17c0229a9
https://doi.org/10.1007/bf01437273
https://doi.org/10.1007/bf01437273
Autor:
J. Doerfert, Lorenzo J. Curtis, S. T. Maniak, Peter Bengtsson, Lars Engström, Marco Kirm, Elmar Träbert, J Granzow
Publikováno v:
Physica Scripta. 52:516-521
This paper reports an extended experimental investigation, using the beamfoil technique, of the intensity ratio of the fine-structure components in the 3s23p 2P1/2,3/2–3s3p2 2S1/2 and 2P1/2 resonance transitions along the Al I isoelectronic sequenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da255dd77b6fb0889a48a7c738c7af90
https://doi.org/10.1088/0031-8949/52/5/007
https://doi.org/10.1088/0031-8949/52/5/007
Autor:
J. Doerfert, Finn Folkmann, R. Büttner, J Brauckhoff, J Granzow, K.-H. Schartner, M. Nicolai, P. H. Mokler, Elmar Träbert
Publikováno v:
Physics Letters A. 202:91-98
N = 2, Δn = 0 transitions in highly-charged Kr ions have been observed with foil excited ion beams. Decay curves were constructed from delayed multi-channel spectra. Analysis of the decay curves by various techniques which take cascade effects into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e918029bbb4140606687944bfab77a
https://doi.org/10.1016/0375-9601(95)00244-w
https://doi.org/10.1016/0375-9601(95)00244-w
Autor:
P. Forck, D. Habs, Elmar Träbert, Ulrich Schramm, T. Schüßler, J Granzow, M. Grieser, A. Wolf, J. Doerfert, J. Kenntner
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 98:53-56
Collisions between the circulating ions in an ion storage ring and electrons of an electron cooler can be used for the experimental determination of long atomic lifetimes. Our interest is in the 2s2p 3 P 1 0 level in Be-like ions and the 3s3p 3 5 S 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b631074c755d2f625a6a8206baf1533b
https://doi.org/10.1016/0168-583x(95)00031-3
https://doi.org/10.1016/0168-583x(95)00031-3