Al2O3（Si，Ti）的光激发热释光及其在紫外线辐射剂量测定中的应用。

Photostimulated thermoluminescence of Al2O3 (Si, Ti) and its application to ultraviolet radiation dosimetry.

作者信息

Mehta S K, Sengupta S

出版信息

Phys Med Biol. 1978 May;23(3):471-80. doi: 10.1088/0031-9155/23/3/010.

Abstract

Intrinsic photostimulated thermoluminescence (PSTL) in the range 200-320 nm and radiation sensitized PSTL for 200-425 nm have been studied in Al2O3 (Si, Ti) phosphor. Causes of the effects found, partly attributed to phototransfer of electrons are described. Linearity in the intrinsic and radiation sensitized response of the 280 degree C TL peal for both pellet and powder forms has been studied with regard to ultraviolet dosimetry over the range 10(-2) to 5 x 10(4) mJ cm-2. Details of the use of powder and pellet forms for dosimetry are given.

摘要

在Al2O3（Si，Ti）荧光粉中研究了200 - 320 nm范围内的本征光激发热释光（PSTL）以及200 - 425 nm的辐射敏化PSTL。描述了所发现效应的原因，部分归因于电子的光转移。针对10(-2)至5×10(4) mJ cm-2范围内的紫外线剂量测定，研究了颗粒和粉末形式的280℃热释光峰在本征和辐射敏化响应中的线性关系。给出了用于剂量测定的粉末和颗粒形式的使用细节。