Development of a non-destructive depth-selective quantification method for sub-percent carbon contents in steel using negative muon lifetime analysis oleh Kazuhiko Ninomiya, Michael Kenya Kubo, Makoto Inagaki, Go Yoshida, I-Huan Chiu, Takuto Kudo, Shunsuke Asari, Sawako Sentoku, Soshi Takeshita, Koichiro Shimomura, Naritoshi Kawamura, Patrick Strasser, Yasuhiro Miyake, Takashi U. Ito, Wataru Higemoto, Tsutomu Saito