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广东海洋大学理学院
纸质出版日期:2012-02-01
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[1]陈劲民,李永强,熊正烨,王文华,封余军,黄存友,汤照,师文庆.Al_2O_3:C、LiF:Mg,Ti、LiF:Mg,Cu,P对本底辐射的热释光响应比较[J].核技术,2012,35(02):109-112.
CHEN Jingmin LI Yongqiang XIONG Zhengye WANG Wenhua FENG Yujun HUANG Cunyou TANG Zhao SHI Wenqing. Thermoluminescence comparison among Al2O3:C, LiF:Mg,Ti and LiF:Mg,Cu,P for natural radiation background measurement[J]. Nuclear techniques, 2012, 35(2): 109-112.
[1]陈劲民,李永强,熊正烨,王文华,封余军,黄存友,汤照,师文庆.Al_2O_3:C、LiF:Mg,Ti、LiF:Mg,Cu,P对本底辐射的热释光响应比较[J].核技术,2012,35(02):109-112. DOI:
CHEN Jingmin LI Yongqiang XIONG Zhengye WANG Wenhua FENG Yujun HUANG Cunyou TANG Zhao SHI Wenqing. Thermoluminescence comparison among Al2O3:C, LiF:Mg,Ti and LiF:Mg,Cu,P for natural radiation background measurement[J]. Nuclear techniques, 2012, 35(2): 109-112. DOI:
用Al2O3:C、LiF:Mg
Ti、LiF:Mg
Cu
P热释光剂量计(TLD)测量湛江市区本底辐射的热释光响应
以选取适合低辐射场辐射剂量测量的TLD。它们的最低响应剂量依次为Al2O3:C(1–2μGy)、LiF:Mg
P(约2μGy)和LiF:Mg
Ti(>10μGy)。Al2O3:C的热释光峰温较低
对较长时间段(>30 d)的累积剂量
存在较明显的热释光衰退
剂量响应曲线偏离线性;LiF:Mg
P和LiF:Mg
Ti的发光峰温较高
数年内都很稳定。综合考虑灵敏度和稳定性
LiF:Mg
P更宜于低辐射场的累积剂量测量。
To select thermoluminescent dosimeters(TLDs) for low radiation research
thermoluminescence responses of Al2O3:C
Ti and LiF:Mg
P were measured under natural radiation background in Zhanjiang city
China.TL sensitivity of the three TLDs
in terms of the threshold dose
is sequenced as Al2O3:C(1~2 μGy)
P(about 2 μGy)
and LiF:Mg
Ti(>10 μGy).However
as the temperature of glow peak of Al2O3:C is not so high
its TL decays in a relatively long period
hence the non-linearity of the TL dose response curve of Al2O3:C
while temperatures of glow peaks of LiF:Mg
P are higher
hence their linear TL dose response.Therefore
P is the best TLD for low radiation cumulative dose detection.
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