The influence of annealing time for LiF ( Mg, Cu, P) thermo-luminescence detector measurement results were investigated by experiments .It shows that when annealing temperature keeps invariant ( 240 ± 2℃) , long annealing time has little influence on measurement results , especially for individual dose monito-ring.%通过实验研究了LiF（ Mg，Cu，P）热释光探测器在退火温度不变，退火时间过长的情况下对测量结果的影响。测量结果表明，在退火温度保持（240±2）℃不变的情况下，退火时间过长对LiF （ Mg， Cu，P）热释光探测器的测量结果基本没有影响，在个人剂量监测中，这个影响可忽略。
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