title: Bone powder exposed to the action of 12C and 25Mg ion beams as investigated by electron paramagnetic resonance spectroscopy.
abstract: Bovine compact bone powder was irradiated with alpha-particles of 241Am, 12C6+ and 35Mg12+ ion beams, then examined by the e.p.r. spectroscopy. The stable e.p.r. signal found is of the same characteristic as that observed in gamma-irradiated bone (g perpendicular = 2.0017, g parallel = 1.9973, delta Hpp = 0.85 mT). Thus, the structure of radiation induced paramagnetic center in bone does not depend on the LET of radiation used. The radiolytic yields of the formation of stable paramagnetic centres in bone powder irradiated with gamma-rays are G gamma = 0.08 +/- 0.01 while with 12C6+ ion beams roughly about Gc = 0.02, respectively.
authors.affiliation: Institute of Nuclear Chemistry and Technology (INCT), Warszawa, Poland.
authors.forename: Z
authors.initials: Z
authors.lastname: Stuglik
authors.forename: J
authors.initials: J
authors.lastname: Michalik
authors.forename: W
authors.initials: W
authors.lastname: Stachowicz
authors.forename: K
authors.initials: K
authors.lastname: Ostrowski
authors.forename: I
authors.initials: I
authors.lastname: Zvara
authors.forename: A
authors.initials: A
authors.lastname: Dziedzic-Goclawska
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000528:radiation effects*; D002250:Carbon Radioisotopes; D002417:Cattle; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D008274:Magnesium; D011868:Radioisotopes
chemical_list: D002250:Carbon Radioisotopes; D011868:Radioisotopes; D008274:Magnesium