Gamma radiation shielding characteristics of various spinel ferrite nanocrystals: a combined experimental and theoretical investigation.

This work presents the facile synthesis of Ni, Mn, Zn, Cu and Co spinel ferrite nanocrystals sol-gel auto-ignition and the investigation of their structural and gamma ray shielding characteristics. Experimentally, gamma ray shielding parameters are determined with different gamma ray sources and NaI(Tl) scintillation detector and theoretically Monte-Carlo simulation (Geant4) as well as NIST-XCOM database. X-ray diffractograms elucidate the cubic spinel structure without any contaminating phases for all synthesized nano-ferrites.