Gagnon W F, Berkley L W, Kennedy P, Hanson W F, Shalek R J
Med Phys. 1978 Nov-Dec;5(6):556-60. doi: 10.1118/1.594450.
The AAPM Radiological Physics Center has reviewed 188 institutions and has evaluated such parameters as coincidence of radiation field and light field, timer error (end effect), beam flatness and symmetry, transmission through blocking trays, wedges and compensators, and central-axis depth-dose data. In previous papers these data had been presented in combination as they resulted in discrepancies in tumor dose. The individual sources of discrepancies were listed only as frequency and maximum deviation. A detailed analysis is now presented which may help define criteria of recommended practice.
美国医学物理师协会放射物理中心对188家机构进行了审查，并评估了诸如辐射野与光野的重合度、定时器误差（终末效应）、射野平坦度和对称性、通过挡块托盘、楔形板和补偿器的透射率以及中心轴深度剂量数据等参数。在以往的论文中，这些数据是综合呈现的，因为它们会导致肿瘤剂量出现差异。差异的个别来源仅列为频率和最大偏差。现在给出详细分析，这可能有助于确定推荐做法的标准。
