乳腺X线机半价层与kV关系的研究
Chinese journal of radiology(2010)
Abstract
半价层(half value layer,HVL)的测量是乳腺X线摄影质量控制中的一个重要部分,也是计算乳腺平均腺体剂量时必须测量的一个参数[1-2].半价层的影响因素很多,如kV、靶-滤过材料、照射野大小等.
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Key words
half value layer,x-ray
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