Photoluminescence and thermoluminescence properties of dysprosium doped zinc metaborate phosphors
来源期刊：Journal of Rare Earths2008年第2期
论文作者：李娟 张纯祥 唐强 郝景权 张彦立 苏锵 王淑彬
文章页码：203 - 206
摘 要：Polycrystalline powder samples of dysprosium doped Zn（BO2）2 phosphors were prepared by solid state reaction in air at high temperature and characterized by X-ray powder diffraction. The IR, Photoluminescence （PL）, diffuse reflectance and three-dimensional （3D） thermoluminescence （TL） emission spectrum after 60Co gamma ray irradiation were investigated. The characteristic 3D TL emission bands at about 425, 481 and 573 nm with a main emission band of around 573 nm were attributed to the host emission, 4F9/2→6H15/2 and F9/2 → 6H13/2 f-f transitions of Dy3+ ions. No emission from Dy2+ ions was observed in the measurement wavelength range. The TL-dose response of the Zn（BO2）2:Dy polycrystalline powder sample to gamma ray radiation in the range from 1 to 100 Gy at clinical dose levels was almost linear. The experimental results showed that Zn（BO2）2:Dy had potential use as the materials of gamma-ray thermoluminescence dosimeter （TLD） for clinical dosimetry.
李娟，张纯祥，唐强，郝景权，张彦立，苏锵，王淑彬
摘 要：Polycrystalline powder samples of dysprosium doped Zn（BO2）2 phosphors were prepared by solid state reaction in air at high temperature and characterized by X-ray powder diffraction. The IR, Photoluminescence （PL）, diffuse reflectance and three-dimensional （3D） thermoluminescence （TL） emission spectrum after 60Co gamma ray irradiation were investigated. The characteristic 3D TL emission bands at about 425, 481 and 573 nm with a main emission band of around 573 nm were attributed to the host emission, 4F9/2→6H15/2 and F9/2 → 6H13/2 f-f transitions of Dy3+ ions. No emission from Dy2+ ions was observed in the measurement wavelength range. The TL-dose response of the Zn（BO2）2:Dy polycrystalline powder sample to gamma ray radiation in the range from 1 to 100 Gy at clinical dose levels was almost linear. The experimental results showed that Zn（BO2）2:Dy had potential use as the materials of gamma-ray thermoluminescence dosimeter （TLD） for clinical dosimetry.
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