X-Ray FEL-induced double core-hole formation in polyatomic molecules

P. Salén, P. Van Der Meulen, R. D. Thomas, H. T. Schmidt, M. Larsson, R. Feifel, M. N. Pian-Castelli, L. Fang, T. Osipov, B. Murphy, P. Juranic, N. Berrah, E. Kukk, K. Ueda, R. Richter, K. C. Prince, J. D. Bozek, C. Bostedt, S. Wada, M. TashirM. Ehara, F. Tarantelli

Research output: Contribution to journalConference articlepeer-review


We use extremely intense, ultrashort soft X-Ray pulses generated by the LCLS X-Ray Free Electron Laser to investigate the production of molecular double core-hole states by sequential two-photon X-Ray absorption. The effect of critical LCLS parameters such as the number of photons per pulse, the pulse duration, and the focal spot size on the photoelectron and Auger spectra is modeled in detail and the results of these simulations are used as an aid in the interpretation of the experimental spectra obtained. The emphasis is on double core-hole formation in small polyatomic molecules such as CO2.

Original languageEnglish
Article number022083
JournalJournal of Physics: Conference Series
Issue numberPART 2
Publication statusPublished - 2012
Event27th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2011 - Belfast, United Kingdom
Duration: 2011 Jul 272011 Aug 2

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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