DEFECT STRUCTURE OF IONIC MATERIALS BY ELECTRON PARAMAGNETIC RESONANCE AND NUCLEAR MAGNETIC RESONANCE

摘要

Electron spin resonance techniques were used on two systems (yttria and thoria) which thermoluminescence under U.V. irradiation. In the case of a very pure ThO2 crystal, it was possible to identify the electron and hole traps which empty or fill in a particular tem¬perature and give rise to the thermoluminescence. Possible thermolum¬inescent centers are discussed.