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首页> 外文会议>International Conference on "Multidimensional Role of Basic Science in Advanced Technology" >Effect of Particle Size on OSL Response of CaSO_4:Eu
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Effect of Particle Size on OSL Response of CaSO_4:Eu

机译：粒径对Caso_4的osl响应的影响：欧盟

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摘要

In this work CaSO_4:Eu~(2+) phosphor was synthesized with various molar solutions as 0.01M,0.1M,1M by co-precipitation method and the particle size effect on OSL sensitivity for CaSO_4: Eu~(2+) samples has been studied. Synthesized phosphor was characterized by XRD, SEM, TEM and OSL measurements. Average particle size for 0.1 M and 0.01 M is found to be in the range 100nm-500nm and 80-100nm respectively with hexagonal morphology. The sample prepared with 0.1M solution shows maximum sensitivity with a slow decay of about 60 s. As the particle size reduced to 80-100nm range sample shows low OSL sensitivity with fast decay curve. For sample prepared with 1M solution, 66% reduction in OSL sensitivity is observed under identical conditions. The observed OSL in 0.1M sample compared with sensitivity of α-Al_2O_3: C (Landuer) and found to be 18 % using area integration method. It may find applications in radiation dosimetry using OSL techniques.
机译：在这项工作中Caso_4：Eu〜（2+）磷光体用各种摩尔溶液合成为0.01m，0.1m，1m，通过共沉淀法和粒度对Caso_4的OSL敏感性的影响：Eu〜（2+）样本具有已经研究过。合成磷光体的特征在于XRD，SEM，TEM和OSL测量。发现0.1μm和0.01μm的平均粒度分别在100nm-500nm和80-100nm的范围内，具有六边形形态。用0.1M溶液制备的样品显示出最大敏感性，缓慢衰减约为60秒。随着粒度减少到80-100nm的范围样本，样本显示出具有快速衰减曲线的低OSL灵敏度。对于用1M溶液制备的样品，在相同条件下观察到OSL灵敏度的66％降低。观察到的OSL在0.1M样品中，与α-Al_2O_3：C（Landuer）的灵敏度相比，发现使用面积集成方法为18％。它可以使用OSL技术在辐射剂量测定中找到应用。

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