Synthesis and TL Characterization of Li2B4O7 Doped with Cooper and Manganese

被引：3

作者：

Guarneros-Aguilar, C. ^{[1
]}

Cruz-Zaragoza, E.

Marcazzo, J.

Palomino-Merino, R. ^{[1
]}

Espinosa, J. E. ^{[1
]}

机构：

[1] Benemerita Univ Autonoma Puebla, Fac Ciencias Fis Matemat, Puebla 72570, Mexico

来源：

RADIATION PHYSICS: IX INTERNATIONAL SYMPOSIUM ON RADIATION PHYSICS | 2013年 / 1544卷

关键词：

Thermoluminescence; dosimeters; radiation; copper; manganese; CU;

D O I：

10.1063/1.4813462

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Copper (Cu) and manganese (Mn) doped tissue equivalent Li2B4O7 were prepared by solid state sintering. The glow curves shows a high temperature peak at 222 degrees C for Li2B4O7:Cu and for Li2B4O7:Mn at 218 degrees C. Linear dose response is observed up to 140 Gy. With a thermal treatment at 125 degrees C, the first peak of the phosphors doped with copper (95 degrees C) and manganese (90 degrees C) disappears and the main TL peaks remain isolated. The dose rate dependence was studied by exposing the samples at doses of 25 Gy and 250 Gy. At low dose it was observed that the Li2B4O7:Cu TL response has non-dependence on dose rate, and at higher dose was observed that there is a dependence of the TL response with the different dose rate until of 30%. For the case of Li2B4O7:Mn, the TL response has non-dependence on dose rate at low dose or high dose.

引用

页码：70 / 77

页数：8