Thermoluminescence of ion-implanted Al2O3

Thermoluminescence (TL) curves from Na+-implanted Al2O3 irradiated by Cs-13 7 gamma rays, from Al2O3 irradiated with Cs-137 gamma ray only and from Al2 O3 implanted with Na+ only were measured over the temperature range of 340- 620 K. The TL curve induced by Cs-137 gamma ray irradiation of Na+-implante d Al2O3 has three peaks located at 452, 508 and 568 K and two shoulders at 407 and 415 K. The TL intensity of ion-implanted Al2O3 induced gamma ray is greater than that of Al2O3 implanted with ion only and that of Al2O3 irrad iated with gamma ray only. The TL intensity of ion-implanted Al2O3 increase s with increasing ion dose and ion energy whereas the TL intensity of that decreases with increasing ion mass. The TL intensity is found to have a ver y close relation with the ion dose, the ion energy, and the ion species. (C ) 1999 Elsevier Science B.V. All rights reserved.