Zobrazeno 1 - 10
of 181
pro vyhledávání: '"J. Linkemann"'
Autor:
Manfred Grieser, M. H. Chen, Daniel Wolf Savin, M. Schmitt, Stefan Schippers, Roland Repnow, S. M. Kahn, Dirk Schwalm, T. W. Gorczyca, O. Zatsarinny, T. Bartsch, N. R. Badnell, Alfred Müller, A. A. Saghiri, Alexander Wolf, J. Linkemann
Publikováno v:
The Astrophysical Journal. 576:1098-1107
We have measured resonance strengths and energies for dielectronic recombination (DR) of Fe XIX forming Fe XVIII via N = 2 → N' = 2 and N = 2 → N' = 3 core excitations. All measurements were carried out using the heavy-ion Test Storage Ring at th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99d3cf913ef37cfd6ac6bf29adf87fc4
https://doi.org/10.1086/341810
https://doi.org/10.1086/341810
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:537-552
Electric-dipole intercombination and forbidden transitions have been optically observed with ions circulating in a storage ring, and atomic lifetimes determined. For the level in the Be-like ion , the measured lifetime of ms corresponds to a transiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed1efc55d4bb26f66bf04838e1f6fc63
https://doi.org/10.1088/0953-4075/32/2/031
https://doi.org/10.1088/0953-4075/32/2/031
Autor:
Eric H. Pinnington, J. Linkemann, Elmar Träbert, A. Curtis, Nandini Bhattacharya, H. G. Berry, Emile J. Knystautas, Alexander Wolf
Publikováno v:
Physical Review A. 58:4449-4452
The slow electric-dipole intercombination decay of the ${2s2p}^{3}{}^{5}{S}_{2}^{o}$ level in the C-like ion ${\mathrm{N}}^{+},$ which appears in the auroral airglow spectrum, has been optically observed from ions circulating in a storage ring. A res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc8bf6b9977b254b00f9dd247824c9da
https://doi.org/10.1103/physreva.58.4449
https://doi.org/10.1103/physreva.58.4449
Autor:
T. Bartsch, Stefan Schippers, Alexander Wolf, Gerald Gwinner, J. Linkemann, Alfred Müller, A. A. Saghiri, C. Brandau
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 31:4873-4886
In the search for interference between radiative and dielectronic recombination (RR and DR), absolute recombination rate coefficients for Ar-like ions have been measured at the Heidelberg Test Storage Ring in the centre-of-mass energy range 0-80 eV.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e06a13dc8ceec5293421da2ba32890c
https://doi.org/10.1088/0953-4075/31/21/017
https://doi.org/10.1088/0953-4075/31/21/017
Autor:
Elmar Träbert, Eric H. Pinnington, J. Linkemann, Alexander Wolf, H. G. Berry, A. Curtis, Nandini Bhattacharya, E J Knystautas
Publikováno v:
Canadian Journal of Physics. 76:899-906
The decay by magnetic dipole and electric quadrupole (M1 and E2) transitions of the 2s22p2 1D2 level in the ground complex of the C-like ion Si8+ and the 2s22p4 1D2 level in the O-like ion Si6+ have been optically observed with ions circulating in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b38f171a0713ef7fc9a36c7381accf39
https://doi.org/10.1139/p98-052
https://doi.org/10.1139/p98-052
Autor:
Dario Marcelo Mitnik, M. S. Pindzola, R. Becker, Alfred Müller, M. Kleinod, J. Linkemann, Alejandro Frank, W. Spies, S. Ricz, P. H. Mokler, L. Empacher, N. R. Badnell, N. Angert, Francis Robicheaux, O. Uwira
Publikováno v:
Physical Review A. 57:4365-4372
Dielectronic recombination cross sections for U{sup 28+} are calculated in the distorted-wave approximation and compared with measurements obtained using an electron-ion merged beams apparatus. Although the experiment covered energies between 0 and 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c7798079bed5819e24a0e09d3660ba1
https://doi.org/10.1103/physreva.57.4365
https://doi.org/10.1103/physreva.57.4365
Autor:
Roland Wester, U. Hechtfischer, Dirk Schwalm, Z. Amitay, Michael Lange, P. Forck, Alexander Wolf, Ulrich Schramm, M. Schmitt, Daniel Zajfman, J. Linkemann
Publikováno v:
Physical Review Letters. 80:2809-2812
molecular ionplays a central role in the chemistry of the interstellarmedium, steady-state reaction schemes fail to explain itshigh abundance observed in diffuse interstellar clouds andproduction in shock-heated regions [2] has to be invoked.On the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccfe496bd007c6d21bac219123e781f8
https://doi.org/10.1103/physrevlett.80.2809
https://doi.org/10.1103/physrevlett.80.2809
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
Autor:
T. Bartsch, Håkan Danared, Alexander Wolf, Reinhold Schuch, W. Spies, Alfred Müller, W. Zong, H. Gao, D. R. DeWitt, Gordon H. Dunn, J. Linkemann
Publikováno v:
Hyperfine Interactions. 114:251-256
The enhancement of dielectronic recombination by applied electric fields has been observed and measured for the first time in a wide range of controlled and measurable fields using multiply charged ions. The heavy ion storage ring, CRYRING, at Stockh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::481499bd7f80f23c2f367786b448a18b
https://doi.org/10.1023/a:1012699227657
https://doi.org/10.1023/a:1012699227657
Autor:
Stefan Schippers, T. Bartsch, A. A. Saghiri, Alfred Müller, Alexander Wolf, C. Brandau, J. Linkemann
Publikováno v:
Hyperfine Interactions. 114:273-276
Recombination of Ar-like Sc3+ ions has been studied experimentally at the TSR for center of mass energies ranging from approximately 12–18 eV. In this energy range rather broad resonances from short lived Sc2+(3s23p53d2 2F) intermediate states are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bbf699cebaf1d74a50ec07e74a5ceb3
https://doi.org/10.1023/a:1012607529475
https://doi.org/10.1023/a:1012607529475