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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02982naa a2200445 4500 | |
| 001 | oai:gup.ub.gu.se/205386 | |
| 003 | SwePub | |
| 008 | 240528s2014 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://gup.ub.gu.se/publication/2053862 URI |
| 024 | 7 | a https://doi.org/10.1039/C4RA09787D2 DOI |
| 040 | a (SwePub)gu | |
| 041 | a eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Ryding, Mauritz Johan,d 19814 aut |
| 245 | 1 0 | a X-ray induced fragmentation of size-selected salt cluster-ions stored in an ion trap |
| 264 | 1 | c 2014 |
| 520 | a A method for spectroscopic characterization of free ionic clusters and nanoparticles utilizing X-ray synchrotron radiation is presented. We demonstrate that size-selected ammonium bisulphate cluster ions, NH 4+(NH 4HSO4) n, captured in a linear ion trap, exhibit well-defined core-level absorption edges in the reconstructed fragment-ion abundance spectra. In addition to the specific photo-fragmentation pathways observed at the N1s-, O1s- and S2p-edges, dissociation also occurs as a consequence of clusters colliding with helium present as buffer gas in the ion trap. Separate off-beam experiments were conducted to establish the activation kinetics of these collision induced dissociation processes. Furthermore, it is demonstrated that the electrons released upon photoionization of background helium are too few in number to produce multiply charged cluster ions, and thereby induce fragmentation of the salt clusters, to any significant degree. The mechanisms for photon absorption and subsequent cluster fragmentation are analysed and discussed. In addition to its inherent element specificity, the method holds promise for cluster structure elucidation resulting from the sensitivity of the near edge absorption structure to the local chemical environment of the excited atom. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng |
| 653 | a Clusters | |
| 653 | a stability | |
| 653 | a synchrotron radiation | |
| 700 | 1 | a Giuliani, A.4 aut |
| 700 | 1 | a Patanen, M.4 aut |
| 700 | 1 | a Niskanen, J.4 aut |
| 700 | 1 | a Simoes, G.4 aut |
| 700 | 1 | a Miller, G.B.S.4 aut |
| 700 | 1 | a Antonsson, E.4 aut |
| 700 | 1 | a Jokinen, T.4 aut |
| 700 | 1 | a Miron, C.4 aut |
| 700 | 1 | a Bjørneholm, O.4 aut |
| 700 | 1 | a Hansen, Klavs,d 1958u Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)4 aut0 (Swepub:gu)xhankl |
| 700 | 1 | a Børve, K.J.4 aut |
| 700 | 1 | a Uggerud, Einar4 aut |
| 710 | 2 | a Göteborgs universitetb Institutionen för fysik (GU)4 org |
| 773 | 0 | t RSC Advancesg 4:88, s. 47743-47751q 4:88<47743-47751x 2046-2069 |
| 856 | 4 8 | u https://gup.ub.gu.se/publication/205386 |
| 856 | 4 8 | u https://doi.org/10.1039/C4RA09787D |
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