Journal Article

PUBDB-2024-01958

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png X-ray radiation damage cycle of solvated inorganic ions

Bloss, D. (Corresponding author)Extern* ; Trinter, F.Extern*XFEL.EU* ; Unger, I.Extern*XFEL.EU* ; Zindel, C.Extern* ; Honisch, C.Extern* ; Viehmann, J.Extern* ; Kiefer, N.Extern* ; Marder, L.Extern*XFEL.EU* ; Küstner-Wetekam, C.Extern* ; Heikura, E.Extern* ; Cederbaum, L. S.Extern* ; Björneholm, O.Extern*XFEL.EU* ; Hergenhahn, U.Extern* ; Ehresmann, A.Extern* ; Hans, A. (Corresponding author)Extern*

2024
Nature Publishing Group UK [London]

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Please use a persistent id in citations: doi:10.1038/s41467-024-48687-2  doi:10.3204/PUBDB-2024-01958

Abstract: X-ray-induced damage is one of the key topics in radiation chemistry. Substantialdamage is attributed to low-energy electrons and radicals emergingfrom direct inner-shell photoionization or produced by subsequent processes.We apply multi-electron coincidence spectroscopy to X-ray-irradiated aqueoussolutions of inorganic ions to investigate the production of low-energyelectrons (LEEs) in a predicted cascade of intermolecular charge- and energytransferprocesses, namely electron-transfer-mediated decay (ETMD) andinteratomic/intermolecular Coulombic decay (ICD). An advanced coincidencetechnique allows us to identify several LEE-producing steps during the decayof 1s vacancies in solvated Mg$^{2+}$ ions, which escaped observation in previousnon-coincident experiments. We provide strong evidence for the predictedrecovering of the ion’s initial state. In natural environments the recovering ofthe ion’s initial state is expected to cause inorganic ions to be radiationdamagehot spots, repeatedly producing destructive particles under continuousirradiation.

Note: 05K19RK2, 2023-04346

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20210172 (I-20210172) (I-20210172)
3. SWEDEN-DESY - SWEDEN-DESY Collaboration (2020_Join2-SWEDEN-DESY) (2020_Join2-SWEDEN-DESY)
4. 05K22RK1 - Verbundprojekt 05K2022 - TRANSALP: Zeit- & winkelaufgelöste Spektroskopie an Proben in der flüssigen Phase. Teilprojekt 2: Aufbau Liquid Jet und KI-basierte Datenanalyse. (BMBF-05K22RK1) (BMBF-05K22RK1)
5. SFB 1319 T01 - Förderung des Wissenschaftsverständnisses in Schulen durch den Transfer von ELCH-Aktivitäten (T01) (491565994) (491565994)
6. DFG project 509471550 - Dynamik photoionisations-induzierter Prozesse in laser-präparierten Molekülen in der Gasphase und der wässrigen Phase (509471550) (509471550)
7. ETMD_ICEC - Efficient pathways to neutralization and radical production enabled by environment (692657) (692657)

Experiment(s):

1. PETRA Beamline P04 (PETRA III)

Appears in the scientific report 2024

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