Siemens primus E医用直线加速器的剂量校准

Dose Determination and Calibration of Siemens primus E LINAC

介绍了用IAEA法对Siemens primus E加速器输出剂量的计算、测量和校准程序,寻求准确、快捷、有效的测量方法。按IAEA规程确定各测量参数值,将吸收剂量计算公式化简成仪表读数乘以照射量校准因子Nx和温度、气压修正因子Ktp以及总校正因子Cf的形式。通过对primus加速器的输出剂量测量并校准,使其精度符合质量保证和质量控制要求。此测量与校准方法,可以用于使用数字化医用加速器实施精确放疗对输出剂量的精度要求和临床治疗。

The procedures for the calculation and measurement and calibration of output dose of the Siemens primus E accelerator with IAEA regulation are introduced to probe an accurate, rapid and effective method .The parameter value of measurement is determined according to IAEA regulations and absorbed dose calculation formal is briefed to the form that the reading of instrument multiplies exposure calibration coefficient N, and Air temperature, pressure and humidity effects K, and cumulative correction factor Cf the precision of accelerator conform to the standard of QA＆QC by the measurement and calibration of the Hospital Primus E accelerator in output dose. The methods of measurement and calibration can be used for the determination of output dose in precise radiotherapy of digital medical linear accelerator and clinical treatment.