The Synchrotron radiation study on the electronic structure of gold-plate HONTA by VUV and soft X-ray irradiations

Miyazaki, Yasunori  ; Hoshino, Masamitsu*; Gejo, Tatsuo*; Adachi, Junichi*; Takahashi, Osamu*

-hexaoctylnitrilotriacetamide (HONTA) is one of the extractants that form complexation with minor actinides (Am, for example). The initial reaction of radiolysis, whether it is direct or indirect, is ionization of HONTA after interaction with electrons. In this study, VUV and soft X-ray were irradiated to HONTA on the gold plate, and the released electrons were energy analyzed and detected by SCIENTA to acquire the photoelectron spectra. The quantum chemical calculations were performed to evaluate the electronic structure and ionization energy of HONTA. For future works, these results will be applied to the molecular dynamics simulation in order to elucidate radiolysis.