Estimation of the time elapsed between exposure and readout using peak ratios of LiF:Mg,Cu,P (MCP-N, GR200A)

被引：12
|
作者：
Budzanowski, M
Vergara, JCS
Ryba, E
Bilski, P
Olko, P
Waligórski, MPR
机构：
[1] Inst Nucl Phys, PL-31342 Krakow, Poland
[2] CIEMAT, E-28040 Madrid, Spain
[3] Ctr Oncol, PL-30115 Krakow, Poland
来源：
RADIATION PROTECTION DOSIMETRY | 1999年 / 85卷 / 1-4期
关键词：
D O I：
10.1093/oxfordjournals.rpd.a032822
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The applicability of peak area ratios (peak2/peak4 and peak3/peak4) in the glow curves of LiF:Mg,Cu,P for the estimation of time between exposure and readout, t(ER) was studied. MCP-N and GR-200 LiF:Mg,Cu,P detectors were exposed to simulate an 'accidental' dose at times before readout ranging from 24 h to 3 months. Two groups of detectors were exposed simultaneously to determine the fading of irradiated detectors and the sensitivity variations of stored, non-irradiated detectors. Peak areas were evaluated using a computerised glow curve analysis code. The peak 2/peak 4 ratio is well suited for evaluating t(ER) below 1 week, while the peak 3/peak 4 ratio serves for t(ER) up to 3 months. The method can be applied in personal and environmental dosimetry to evaluate the date of a high dose rate, accidental exposure.
引用
收藏
页码：149 / 152
页数：4
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