X-ray versus Auger emission following Xe 1<em>s</em> photoionization
Piancastelli, M. N.; Jänkälä, K.; Journel, L.; Gejo, T.; Kohmura, Y.; Huttula, M.; Simon, M.; Oura, M. (2017-06-13)
Piancastelli, M., Jänkälä, K., Journel, L., Gejo, T., Kohmura, Y., Huttula, M., Simon, M., Oura, M. (2017) X-ray versus Auger emission following Xe 1s photoionization. Physical Review A, 95 (6), doi:10.1103/PhysRevA.95.061402
©2017 American Physical Society
Xe 1s photoelectron spectra were measured at SPring-8, Japan. The core-hole lifetime broadening was found to be 9.6 eV, yielding a lifetime of ~68 as. The amount of radiative versus nonradiative decay was assessed by recording Auger LMM spectra below and above the K edge. Below the K edge, L vacancies are produced only by direct photoionization, while above the K edge some of these vacancies are mainly produced by KL emission following 1s photoionization. Due to the dipole selection rule for x-ray emission, the dominant role of the KL relaxation process is rather directly observed.
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