Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Borovik Jr, A."'
Autor:
Jin, Fengtao, Borovik Jr, Alexander, Döhring, B. Michel, Ebinger, Benjamin, Müller, Alfred, Schippers, Stefan
Publikováno v:
Eur. Phys. J. D 78 (2024) 68
We present new experimental and theoretical cross sections for electron-impact single ionization of Xe$^{12+}$ and Xe$^{13+}$ ions, and double ionization of Xe$^{12+}$, Xe$^{13+}$ and Xe$^{14+}$ ions for collision energies from the respective ionizat
Externí odkaz:
http://arxiv.org/abs/2403.04042
Publikováno v:
J. Phys. B. 53 (2020) 175201
Recently, we have demonstrated (Jin et al. 2020, J. Phys. B: At. Mol. Opt. Phys. 53, 075201) that a hybrid subconfiguration-average and level-to-level distorted wave treatment of electron-impact single ionisation (EISI) of W$^{14+}$ ions represents a
Externí odkaz:
http://arxiv.org/abs/2004.02597
Publikováno v:
Phys. Rev. A 101, 032503 (2020)
We present spectroscopic measurements and detailed theoretical analysis of inner-shell LMn and LNn (n $\geq$ 4) dielectronic resonances in highly-charged M-shell ions of tungsten. The x-ray emission from W$^{49+}$ through W$^{64+}$ was recorded at th
Externí odkaz:
http://arxiv.org/abs/2003.02310
Publikováno v:
J. Phys. B 53 (2020) 075201
The cross section for electron-impact single ionisation of W14+ ions has been calculated by using two different approaches, i.e., the subconfiguration averaged distorted-wave (SCADW) method and the more involved level-to-level distorted-wave (LLDW) m
Externí odkaz:
http://arxiv.org/abs/1912.08681
Autor:
Perry-Sassmannshausen, A., Buhr, T., Borovik Jr., A., Martins, M., Reinwardt, S., Ricz, S., Stock, S. O., Trinter, F., Müller, A., Fritzsche, S., Schippers, S.
Publikováno v:
Phys. Rev. Lett. 124, 083203 (2020)
We report on new measurements of m-fold photodetachment (m=2-5) of carbon anions via K-shell excitation and ionization. The experiments were carried out employing the photon-ion merged-beams technique at a synchrotron light source. While previous mea
Externí odkaz:
http://arxiv.org/abs/1912.04017
Absolute cross sections for electron-impact single ionisation (EISI) of multiply charged tungsten ions (W$^{q+}$) with charge states in the range $ 11 \leq q \leq 18$ in the electron-ion collision energy ranges from below the respective ionisation th
Externí odkaz:
http://arxiv.org/abs/1910.08482
Autor:
Gall, Amy C., Foster, Adam R., Silwal, Roshani, Dreiling, Joan M., Borovik Jr., Alexander, Kilgore, Ethan, Ajello, Marco, Gillaspy, John D., Ralchenko, Yuri, Takacs, Endre
Motivated by possible atomic origins of the unidentified emission line detected at 3.55 keV to 3.57 keV in a stacked spectrum of galaxy clusters (Bulbul et al. 2014), an electron beam ion trap (EBIT) was used to investigate the resonant dielectronic
Externí odkaz:
http://arxiv.org/abs/1902.01234
Autor:
Schippers, S., Buhr, T., Borovik Jr., A., Holste, K., Perry-Sassmannshausen, A., Mertens, K., Reinwardt, S., Martins, M., Klumpp, S., Schubert, K., Bari, S., Beerwerth, R., Fritzsche, S., Ricz, S., Hellhund, J., Müller, A.
Publikováno v:
X-Ray Spectrometry (2019) special issue article
The Photon-Ion Spectrometer at PETRA III - in short, PIPE - is a permanently installed user facility at the "Variable Polarization XUV Beamline" P04 of the synchrotron light source PETRA III operated by DESY in Hamburg, Germany. The careful design of
Externí odkaz:
http://arxiv.org/abs/1809.09580
Autor:
Müller, A., Lindroth, E., Bari, S., Borovik Jr., A., Hillenbrand, P. -M., Holste, K., Indelicato, P., Kilcoyne, A. L. D., Klumpp, S., Martins, M., Viefhaus, J., Wilhelm, P., Schippers, S.
Publikováno v:
Phys. Rev. A 98, 033416 (2018)
In a joint experimental and theoretical endeavour, photoionization of metastable C4+(1s 2s 3S1) ions via intermediate levels with hollow, double-K-vacancy configurations 2s2p, 2s3p, 2p3s, 2p3d, 2s4p, 2p4s and 2p4d has been investigated. High-resoluti
Externí odkaz:
http://arxiv.org/abs/1809.08455
Autor:
Müller, A., Borovik Jr., A., Bari, S., Buhr, T., Holste, K., Martins, M., Perry-Saßmannshausen, A., Phaneuf, R. A., Reinwardt, S., Ricz, S., Schubert, K., Schippers, S.
Publikováno v:
Phys. Rev. Lett. 120, 133202 (2018)
Double and triple detachment of the F-(1s2 2s2 2p6) negative ion by a single photon have been investigated in the photon energy range 660 to 1000 eV. The experimental data provide unambiguous evidence for the dominant role of direct photo-double-deta
Externí odkaz:
http://arxiv.org/abs/1809.08450