NEW BEO CERAMICS FOR TL ESR DOSIMETRY

Several types of commercial BeO ceramics have been studied with a view to their possible application in TL and/or ESR dosimetry. The best re sults have been obtained with optically transparent high density ceram ics with little tendency to sputtering, simultaneously doped with lith ium and neodymium ions and having no pyroelectrical effects during hea ting and cooling. TL and ESR signals associated with Li centres whose amplitude is proportional to the absorbed dose are observed. A complet e anneal of the ESR signal takes place in the temperature range of the TL recordings.