Effect of Thermal Neutron Irradiation on the Growth and Structure of K2SO4 Crystal

摘要

In this work we studied the effects of K 2 SO 4 crystal which is exposure to thermal neutron radiation. This crystal was grown by slow evaporation of the aqueous solution technique to the size (28 x 6x 6 )mm 3 .X-ray powder diffraction was used to identify the structures for before and after irradiation samples. Lattice parameter calculations revealed orthorhombic crystal system for before irradiation and monoclinic for after irradiation sample. Then we followed it by DSC which allowed us to highlight the high temperature phase transition around T c 581.9 ? Cfor before irradiation and at 670oC for after irradiation .The difference in T c at high temperature during heating run indicates for structural changed. Then IR study verifies the reduction in crystal symmetry, which indicates to the correlation between thermal neutron irradiation and structure of K 2 SO 4 .