一种提高热释光探测器低能光子响应的新方法

A New Way to Raise TLD's Low Energy Photon Respons

ICRU 39号报告提出的四个剂量当量新量值及光子能量响应转换系数,使得一些有效原子序数较低的热释光探测器的低能光子响应变得明显地欠响应。针对这一问题,本文探索了一条加入少量高原子序数添加剂作为“光电子炮弹库”的新途径,既能不起掺杂剂的作用而对原有的优良性能无任何影响,又能有效地抬高低能光子响应并在较大的范围内任意调节低能光子响应的抬高幅度,从而可优选出基本满足Hp(10)和H(10)要求的两种配方。

ICRU No.39 Report has put forward four quantities about dose equivalent.In view of this subject, the response of low energy photons shows 'under-response' seriously for LiF' Mg, Cu, P TL material, This paper explores a new way to raise up its low energy response effectively and to make it adjustable in a certain extent by adding the elements with high Zt .Two kinds of burden have been selected to satisfy the requirements of J/p(lO) and //,(lO) respectively, meanwhile the excellent performances of LiF'Mg, Cu, P TLD have been maintained.