TY - DATA T1 - Photoelectron spectrum of xenon atoms irradiated by EUV FEL pulses at a photon energy of 24.3 eV PY - 2013/08/13 AU - S Mondal AU - M Yao AU - Y Mizoguchi AU - S Yase AU - K Nagaya AU - A Yamada AU - H Fukuzawa AU - K Motomura AU - R Ma AU - A Rouzée UR - https://iop.figshare.com/articles/figure/_Photoelectron_spectrum_of_xenon_atoms_irradiated_by_EUV_FEL_pulses_at_a_photon_energy_of_24_3_eV/1012445 DO - 10.6084/m9.figshare.1012445.v1 L4 - https://ndownloader.figshare.com/files/1480267 KW - compact KW - 23.0 KW - ionization KW - ultrashort KW - Abstract Xenon atoms KW - velocity map imaging KW - laser KW - figure KW - Photon energy KW - EUV FEL pulses KW - dirac KW - approach KW - calculation KW - spectrum KW - source KW - photoelectrons KW - absorption KW - photoelectron KW - sase KW - sequential KW - ev KW - xenon KW - Atomic Physics KW - Molecular Physics N2 - Figure 3. Photoelectron spectrum of xenon atoms irradiated by EUV FEL pulses at a photon energy of 24.3 eV. Abstract Xenon atoms are double-ionized by sequential two-photon absorption by ultrashort extreme ultraviolet free-electron laser pulses with a photon energy of 23.0 and 24.3 eV, produced by the SPring-8 Compact SASE Source test accelerator. The angular distributions of photoelectrons generated by two-photon double ionization are obtained using velocity map imaging. The results are reproduced reasonably well by the present theoretical calculations within the multi-configurational Dirac–Fock approach. ER -