[13p-4E-1~20] 6.5 Surface Physics, Vacuum

[13p-4E-14] Synchrotron Radiation Photoemission Electron Microscope Observation of Cs-containing Clay Mineral

〇Akitaka Yoshigoe¹, Hidehiro Shiwaku¹, Tooru Kobayashi¹, Iwao Shimoyama¹, Daiju Matsumura¹, Takuya Tsuji¹, Yasuo Nishihata¹, Tsuyoshi Yaita¹, Toshihiro Kogure², Satoko Motai², Takuo Ohkochi³ (1.JAEA, 2.The Univ. of Tokyo, 3.JASRI)

Keywords:Photoemission Electron Microscope,Synchrotron Radiation,Pinpoint surface chemical analysis

Fundamental researches on adsorption state of radiaoactive Cs in clay mineral (aluminosilicate) have become important from the virewpoints of development of decontamination/volume-reduction techniques since the accident of Fukushima Daiiichi Nuclear Power Station. Pinpoint surface chemical analysis with sub-μm spatial resolutions focusing on a target sample has been needed. In this presentation, I will show our recent work on nanoscale pinpoint surface chemical analysis for Cs-containing clay mineral by means of synchrotron radiation PEEM at BL17SU in SPring-8.