光電子回折{ひかり でんし かいせつ}photoelectron diffraction (ped): photoelectron diffraction (PED)光電子回折法[基礎]x-ray photoelectron diffraction (xped): X-ray photoelectron diffraction (XPED)X線光電子回折法[基礎]photoelectron: photoelectron光電子こうでんし