中华放射医学与防护杂志

吴大可,孙福印,戴洪臣.高灵敏氟化锂[LiF(Mg,Cu,P)]热释光剂量计[J].中华放射医学与防护杂志,1981,1(5):13-19.Wu Dake,Shun Fuyin,Dai Hongchen.A HIGHLY SENSITIVE LITHIUM FLUORIDE THERMOLUMINESCENCE DOSIMETER[J].Chin J Radiol Med Prot,1981,1(5):13-19

高灵敏氟化锂[LiF(Mg,Cu,P)]热释光剂量计

A HIGHLY SENSITIVE LITHIUM FLUORIDE THERMOLUMINESCENCE DOSIMETER

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基金项目:

作者	单位
吴大可	中国医学科学院放射医学研究所
孙福印	中国医学科学院放射医学研究所
戴洪臣	中国医学科学院放射医学研究所

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中文摘要:

一种兼备组织等效性好、灵敏度高的新型热释光材料——LiF(Mg,Cu,P)已用国产原料在实验室中制备出来。本文报道了这种热释光材料作成的热释光剂量计的主要特性,并与几种常用的热释光剂量计作了比较。实验表明。LjF(Mg,Cu,P)的灵敏度约为美国Hatshaw公司生产的LiF—TLD100的30倍,在0.3毫伦～1000伦范围内有良好线性;受照后元件在室温条件下保存两个月,热释光衰退小于5%;对30keVX线的响应为对⁶⁰Co γ线响应的1.26倍。近一年来的性能实验和初步应用说明,这是一种很有前途的热释光剂量计。

英文摘要:

A New highly sensitive LiF(Mg,Cu,P)has been made in our laboratory.Its dosimetric properties have been studied.The main results obtained in this experiment are as follows:The sensitivity of new highly sensitive LiF TLD is about 30 times higher than that of Harshaw LiF TLD-100。And nearly equal to that of CaSO₄(TLD;the thermoluminescence response to the exposure increases linearly in the range of the exposure from 0.3 mR to 1000R;the energy dependence of LiF(Mg,CU, P)TLD is so small that its response at 30 keV is 1.26 times as large as that to ⁶⁰Co gamma radiation;its fading approximates to 5% at room temperature during two months.

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