Optically stimulated luminescence (OSL) characteristics of four fluorite samples under green light stimulation

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2024-10-25 DOI:10.1016/j.apradiso.2024.111564

Juan Mittani, Rene Rocca

引用次数: 0

Abstract

This study investigates the OSL properties of four natural fluorite color varieties (green, purple, blue-yellow banded and yellow) under green light stimulation. Thermoluminescence reveals two peaks, with the green sample showing the strongest glow. OSL exhibits a fast initial decay followed by a slower one, with phototransfer observed in purple and yellow. OSL intensity is linear with dose (1–30 Gy) for most samples, except yellow. Curve fitting using a first order kinetics model suggests multiple OSL components (between 3 and 5). Preheat treatment at 100 °C increases the very fast components (thermal transfer). Anomalous fading shows rapid initial decay followed by a slower one.

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四种萤石样品在绿光刺激下的光激发发光（OSL）特性。

本研究调查了四种天然萤石颜色（绿色、紫色、蓝黄带和黄色）在绿光刺激下的 OSL 特性。热释光显示出两个峰值，其中绿色样品的发光最强。OSL 显示出快速的初始衰减和较慢的衰减，在紫色和黄色样品中观察到光转移。除黄色样品外，大多数样品的 OSL 强度与剂量（1-30 Gy）呈线性关系。使用一阶动力学模型进行的曲线拟合表明，OSL 有多种成分（3 至 5 种）。100 °C 的预热处理增加了极快的成分（热传递）。异常衰减显示初始衰减较快，随后衰减较慢。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.