TY - JOUR
T1 - On energy storage of Lu2O3:Tb,M (M=Hf, Ti, Nb) sintered ceramics: Glow curves, dose-response dependence, radiation hardness and self-dose effect
AU - Kulesza, Dagmara
AU - Bos, Adrie J.J.
AU - Zych, Eugeniusz
N1 - Accepted Author Manuscript
PY - 2018
Y1 - 2018
N2 - Thermoluminescent properties and energy storage characteristics of Lu2O3:Tb,M (M = Hf, Ti, Nb) sintered ceramics induced by ionizing radiation are presented and discussed. Dose-response dependence, radiation hardness and fading are studied. A linearity of the former exceeding seven orders of magnitude is confirmed for Lu2O3:Tb,Hf and Lu2O3:Tb,Nb ceramics. Lu2O3:Tb,Hf shows the best TL performance and also its fading is the lowest reaching 15% over 7 h and shows tendency to saturate. During the same period of time the Lu2O3:Tb,Ti, despite having TL at higher temperatures, losses about 25% of the stored energy and the TL signal of Lu2O3:Tb,Nb fades by almost 40% over 7 h. First order TL kinetics is confirmed for all three compositions. A self-dose effect in Lu2O3:Tb,Hf due to a natural content of the radioactive isotope (2.6%) is proved to be important for long-time reading of low doses.
AB - Thermoluminescent properties and energy storage characteristics of Lu2O3:Tb,M (M = Hf, Ti, Nb) sintered ceramics induced by ionizing radiation are presented and discussed. Dose-response dependence, radiation hardness and fading are studied. A linearity of the former exceeding seven orders of magnitude is confirmed for Lu2O3:Tb,Hf and Lu2O3:Tb,Nb ceramics. Lu2O3:Tb,Hf shows the best TL performance and also its fading is the lowest reaching 15% over 7 h and shows tendency to saturate. During the same period of time the Lu2O3:Tb,Ti, despite having TL at higher temperatures, losses about 25% of the stored energy and the TL signal of Lu2O3:Tb,Nb fades by almost 40% over 7 h. First order TL kinetics is confirmed for all three compositions. A self-dose effect in Lu2O3:Tb,Hf due to a natural content of the radioactive isotope (2.6%) is proved to be important for long-time reading of low doses.
KW - Dosimetry
KW - Energy storage materials
KW - Luminescence
KW - Radiation effects
KW - Recombination and trapping
UR - http://resolver.tudelft.nl/uuid: 9d51a836-2cb3-4fe5-9aff-c947d3e08a68
UR - http://www.scopus.com/inward/record.url?scp=85051265753&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2018.07.360
DO - 10.1016/j.jallcom.2018.07.360
M3 - Article
AN - SCOPUS:85051265753
SN - 0925-8388
VL - 769
SP - 794
EP - 800
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -