Doped Lanthanum Hafnates as Scintillating Materials for High-Energy Photon Detection
POSTER
Abstract
Recent years have seen the emergence of nanocrystalline complex oxide scintillators for use in X-ray and gamma-ray detection. In this study, we investigate the structural and optical properties of La$_{2}$Hf$_{2}$O$_{7}$ nanoparticles doped with varying levels of Eu$^{3+}$ or Ce$^{3+}$ by use of X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and optical photoluminescence. In addition, scintillation response under X-ray and gamma-ray exposure is reported.
*The authors thank the support from the Defense Threat Reduction Agency (DTRA) of the U.S. Department of Defense (Award #HDTRA1-10-1-0114).