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丙氨酸/ESR剂量体系应用于辐射治疗水平吸收剂量测量的主要困难在于两个方面:一是丙氨酸剂量计的本底剂量信号较大;另一是ESR谱仪测量10Gy以下剂量时的信噪比较低,导致不确
Alanine / ESR dose system used in radiation therapy level absorbed dose measurement is the main difficulty in two aspects: First, the alanine dosimeter background dose signal larger; the other ESR spectrometer to measure the following doses of 10Gy Low signal to noise ratio, resulting in uncertainty