Bulcar K, Kucuk N, Topaksu M, Can N
Physics Department, Cukurova University, Arts-Sciences Faculty, 01330, Adana, Turkey.
Department of Physics, Bursa Uludag University, Faculty of Arts and Sciences, Gorukle Campus, 16059, Bursa, Turkey.
Appl Radiat Isot. 2019 May;147:177-181. doi: 10.1016/j.apradiso.2019.03.016. Epub 2019 Mar 12.
In this paper we describe the thermoluminescence (TL) characteristics of 0.8 mol% Tm doped ZnBOphosphors prepared by a wet-chemical method. The TL glow curves of the phosphor sample consisted of three peaks located at 181 °C, 213 °C and 351 °C. The glow peak TL temperature (T) at which the TL glow peak occurs shifts toward the higher temperature side whilst the heating ramp rate increases and also the peak TL intensity (I) decreases. The TL glow curves are characterized by evaluating various dosimetric characteristics of scrutinized samples. The T-Tinvestigations on regenerated TL signals revealed that there are five different traps in the phosphor with energy values in the range of 0.61-1.71 eV. The dose responses increased in a linear way for 3 peaks with the beta-ray exposure in the dose range of 0.11-60 Gy. The process of applying 10 Gy dose was repeated for ten successive irradiation cycles to check reproducibility and the maximum variation was found to be less than 1% from the average value. These results provide valuable knowledge for use of the characteristics of T doped ZnBO in dosimetry research.
在本文中，我们描述了通过湿化学方法制备的0.8摩尔％Tm掺杂的ZnBO磷光体的热释光（TL）特性。磷光体样品的TL发光曲线由位于181°C、213°C和351°C的三个峰组成。TL发光峰出现时的发光峰温度（T）随着加热升温速率的增加而向较高温度侧移动，并且发光峰强度（I）降低。通过评估被检查样品的各种剂量学特性来表征TL发光曲线。对再生TL信号的T-T研究表明，磷光体中有五个不同的陷阱，其能量值在0.61-1.71 eV范围内。对于3个峰，在0.11-60 Gy的剂量范围内，随着β射线照射，剂量响应呈线性增加。重复施加10 Gy剂量的过程进行十次连续照射循环以检查再现性，发现最大变化与平均值的差异小于1％。这些结果为在剂量学研究中利用掺杂Tm的ZnBO的特性提供了有价值的知识。
