[19a-Z32-1~10] 23.1 Joint Session N "Informatics"

[19a-Z32-6] Fusion of measurement informatics and high-performance computation in total-reflection high-energy positron diffraction (TRHEPD)

〇Takeo Hoshi¹, Daishiro Sakata¹, Shotaro Oie², Izumi Mochizuki³, Satoru Tanaka², Toshio Hyodo³, Koji Hukushima⁴ (1.Tottori Univ., 2.Kyushu Univ., 3.KEK (IMSS-SPF), 4.Univ. Tokyo)

Keywords:sensitivity analysis, supercomputer, total reflection high-energy positron diffraction (TRHEPD)

A general-purpose experimental data analysis method has been developed as an inverse problem analysis that explicitly calculates uncertainty by integrating measurement informatics and high-speed computation techniques. The method consists of an optimization process and sensitivity analysis. The latter enables appropriate variable set selection by the dense calculations near the optimal point using a supercomputer. The usefulness of the method was confirmed by the total reflection high-energy positron diffraction (TRHEPD) experiment at KEK, which is a new non-destructive structural analysis method for two-dimensional materials.