EPR of some irradiated renal stones

Koseoglu R., Koseoglu E., Koksal F., Basaran E., Demirci D.

RADIATION MEASUREMENTS, vol.40, no.1, pp.65-68, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 1
  • Publication Date: 2005
  • Doi Number: 10.1016/j.radmeas.2004.12.015
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.65-68
  • Erciyes University Affiliated: Yes


Some renal stones were investigated by electron paramagnetic resonance of their untreated, UV-photolyzed and gamma-irradiated states. Powder X-ray diffraction technique indicated that the renal stones were made mainly from CaC2O4, MgC2O4, MgCO3 and NH4MgPO4 - 6H(2)O. Before radiation treatment, the renal stones yielded a signal that could be attributed to a C2O4- radical. UV-photolysis seems to slightly increase the intensity of this signal, but does not produce any new centres. Gamma-irradiation initially gives -CH2C(CH3)-R and CO2- radicals, and while the intensity of the -CH2C(CH3) R signal decreases, the intensity of the CO2- signal increases as time elapses. (c) 2004 Elsevier Ltd. All rights reserved.