title: A radical cation produced in a  -irradiated single crystal of DL-methionine as studied by electron spin resonance and optical absorption spectroscopy.
mesh_terms: D003461:Crystallography; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D008715:Methionine / Q000528:radiation effects*; D009905:Optical Rotatory Dispersion; D010777:Photochemistry; D011830:Radiation Effects; D013057:Spectrum Analysis; D013455:Sulfur
chemical_list: D005609:Free Radicals; D013455:Sulfur; D008715:Methionine