Figure 5
XPS spectra of O KLL from sample #1 before and after gamma irradiation. (1) Pure sample #1, (2) sample #1 irradiated at 500 kGy, (3) sample #1 irradiated at 10 kGy (using Mg Kα source hν = 1254.6 eV). The inset shows variation of O KLL peak area as a function of gamma irradiation dose. |