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Photoelectron spectrum of xenon atoms irradiated by EUV FEL pulses at a photon energy of 23.0 eV

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posted on 13.08.2013 by S Mondal, M Yao, Y Mizoguchi, S Yase, K Nagaya, A Yamada, H Fukuzawa, K Motomura, R Ma, A Rouzée

Figure 4. Photoelectron spectrum of xenon atoms irradiated by EUV FEL pulses at a photon energy of 23.0 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.

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