[B-2-4] Investigation of Crystallographic Aspects of Subsurface Damage Induced by Grinding Using Micro Raman Tomographic Imaging 〇Teppei Onuki1、Shunsuke Kan1、Wanpiao Lin1、Wentong Lu1、Kousuke Hasegawa1、Hirotaka Ojima1、Jun Shimizu1、Libo Zhou1 (1.Ibaraki University) キーワード:Measurement、Sapphire、Raman scattering spectroscopy、Nondestructive measurement、Subsurface damage