Birey, MehmetAşık, BirayMurathan, Ayşe2020-06-252020-06-252006closedAccess1042-0150https://doi.org/10.1080/10420150500482504https://hdl.handle.net/20.500.12587/3669Electron paramagnetic resonance spectra of gamma-irradiated single crystals of fumaric acid dipotassium salt dihydrate have been studied for different orientations of the crystal in a magnetic field. The radicals produced by gamma-irradiation have been investigated between 123 and 300 K. The spectra were found to be temperature-independent, and radiation damage centers were attributed to the (< C > over dot)(alpha)H alpha C beta H beta COO-- and (< C > over dot)H=CH2 radicals. The g factor and hyperfine coupling constants were found to be a(alpha) = 16.53; a(beta) = 22; g(ort) = 2.003162; a(CH) = 19; a(CH2) = 11.0; g(av) = 2.0011; rho = 0.66 and rho = 0.76.eninfo:eu-repo/semantics/closedAccessEPRfumaric acid dipotassium salt dihydratespectroscopic splitting factorArticle1611636810.1080/104201505004825042-s2.0-33645779086Q3WOS:000236739800008Q3