Thermoluminescence phosphor with high thermal stability MgSO<sub>4</sub>:Dy,M n

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Thermoluminescence phosphor with high thermal stability MgSO₄:Dy,M n

更新时间：2021-03-12

- Thermoluminescence phosphor with high thermal stability MgSO₄:Dy,M n
- NUCLEAR TECHNIQUES Issue 10, (1999)
- 作者机构：
  
  中山大学,广州,510275
- 作者简介：
- 基金信息：
  
  国家自然科学基金!19775071;广东省自然科学基金
- DOI：
  CLC： TB34
- Published：01 October 1999
- 稿件说明：
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[1]罗达玲,张纯祥,邓邹平,李国桢,唐强.一种高热稳定性的热释光材料MgSO_4:Dy,Mn[J].核技术,1999(10):604-608.

Thermoluminescence phosphor with high thermal stability MgSO₄:Dy,M n[J]. Nuclear techniques, 1999, (10): 604-608.
[1]罗达玲,张纯祥,邓邹平,李国桢,唐强.一种高热稳定性的热释光材料MgSO_4:Dy,Mn[J].核技术,1999(10):604-608. DOI：

Thermoluminescence phosphor with high thermal stability MgSO₄:Dy,M n[J]. Nuclear techniques, 1999, (10): 604-608. DOI：

摘要

MgSO4DyMn的热释光发光曲线只有一个主剂量峰，采用热释光一般级动力学方程拟合发光曲线，确定热释光主剂量峰的峰参数和陷讲参数值，测定在0．1－20kGy剂量范围内用不同剂量60Coγ射线照射MgSO4：DyMn样品的热释光发光曲线，确定出热释光主剂量峰的平均峰温为～3831℃，平均激活能为～1．972eV，频率因子的平均值为～4．294×1014s－1及动力学级数≈2，并得到MgSO4：Dy，Mn在此剂量范围的γ辐射剂量响应，用复合作用响应函数拟合得到的非线性特征参数表明为超线性。还测得MgSO4：Dy，Mn对226Raγ辐射在0，1mGy－0.1Gy剂量范围的线性响应。结果表明，MgSO4：DyMn具有高的热稳定性和较宽的剂量响应范围，可能在热释光剂量学中获得应用，如热释光和电子自旋共振测定年代的年剂量测量，以及较高温度和较高辐射剂量环境下的剂量测量。

Abstract

There is only one main dosimetric peak on the thermoluminescence glow curve of MgSO4:Dy

Mn phosphor prepared by co-dopant. The peak parameter and trap parameter of the dosimetric peak were determined by deconvolution of their glow curves with general order kinetics for MgSO4:Dy

Mn sarnples irradiated with 60Co γ rays at different dose levels. The mean peak temperature of the dosimetric peak was found at 383.1℃

as the mean activation energy E~ 1.972eV and the mean frequency-factor ~ 4.294 ×1014s-1 with kinetics order b≈2. The TL dose-response to 60 Coγ rays in the dose range of 0.1Gy- 20kGy was obtained and fitted by the composite action dose response function to give the nonlinear characteristic parameters which showed this response to be supralinear. The dose response to the 226Ra γ rays in the range of 0.1mGy- 0.1Gy was also measured and found to be linear. Therefore

it is possible that the MgSO4:Dy

Mn will be used to measure the annual dose in TL and ESR dating and the radiation dose at higher temperature or in higher-dose circumstances due to its high thermal stability and wide dose response range.

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Thermoluminescence phosphor with high thermal stability MgSO4:Dy,M n

DOI：

摘要

Abstract

关键词

Keywords

references

Thermoluminescence phosphor with high thermal stability MgSO₄:Dy,M n