| Autor: |
S Klumpp, N Gerken, K Mertens, M Richter, B Sonntag, A A Sorokin, M Braune, K Tiedtke, P Zimmermann, M Martins |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 19, Iss 4, p 043002 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/aa660a |
| Popis: |
The multiple ionisation of atomic Mn, excited at (photon energy: 52.1 eV) and above (photon energy: 61.1 eV) the discrete giant $3p\mbox{--}3d$ resonance, was studied using high irradiation free-electron-laser soft x-ray pulses from the BL2 beamline of FLASH, DESY, Hamburg. In particular, the impact of the giant resonance on the ionisation mechanism was investigated. Ion mass-over-charge spectra were obtained by means of ion time-of-flight spectrometry. For the two photon energies, the yield of the different ionic charge states Mn ${}^{q+}$ ( q = 0–7) was determined as a function of the irradiance of the soft x-ray pulses. The maximum charge state observed was Mn ^6+ for resonant excitation at 52.1 eV and Mn ^7+ for non-resonant excitation at 61.1 eV at a maximum irradiation of $3\times {10}^{13}\ {\bf{W}}{\mathrm{cm}}^{-2}$ . |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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