Low-energy-electron production after 2p ionization of argon clusters

Hironobu Fukuzawa, Yiwen Li, Daehyun You, Yuta Sakakibara, Syuhei Yamada, Yuta Ito, Tsukasa Takanashi, Masaki Oura, Norio Saito, Kiyoshi Ueda

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Irradiation of matter with x rays causes inner-shell ionization of atoms and molecules, followed by subsequent electronic relaxation leading to production of low-energy electrons. In this study we investigate the process of low-energy-electron production in Ar clusters by electron-ion multiple coincidence measurements. In addition to photoelectrons, low-energy electrons are observed after 2p ionization of argon clusters. We find that low-energy-electron production increases when the energy of photoelectrons exceeds the ionization potential of Ar. We experimentally identify the low-energy electrons produced by interatomic electronic decay processes and inelastic scattering of the photoelectrons and Auger electrons with the surrounding Ar atoms.

Original languageEnglish
Article number042505
JournalPhysical Review A
Issue number4
Publication statusPublished - 2019 Apr 9

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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