Automatic Measurement of Photon Beam Output Factor for Medical Accelerator
LI Jinkai1, SUN Xinchen1, ZHOU Sumin2, SUN Xiangdong3, MA Jianxin4, LIU Hai3, WU Yang4
1.Department of Radiotherapy, The First Affiliated Hospital with Nanjing Medical University, Nanjing Jiangsu 210029, China;
2.Department of Radiation Oncology, University of Nebraska Medical Center, Omaha NE68198, USA;
3.Department of Radiotherapy, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing Jiangsu 210002, China;
4.Department of Radiotherapy, Lianyungang Oriental Hospital, Lianyungang Jiangsu 222042, China
Abstract：Objective To develop the methods of measuring photon beam output factor for medical accelerator automatically.
Methods The measuring sequence of beam output factor was imported to MosaiQ system, which managed the state of the accelerator
“beam on” or “beam off”. The PC Electrometer reference dosimeter was turn on synchronously when the accelerator beam on,
and the results were exported in excel format after the measurement. At last, the photon beam output factor was worked out using
formula. Results The accelerator data collection of beam output factor was measured automatically, gainning time about 46%,
and the comparison of measuring result between manual set and automatic set had no statistical significance (P>0.05). Conclusion
Automatic measurement of beam output factor could ensure quality and save time, which is worth to be popularized in clinical
practice.
李金凯1，孙新臣1，周苏民2，孙向东3，马建新4，刘海3，吴扬4. 医用加速器光子线射野输出因子的自动化测量[J]. 中国医疗设备, 2018, 33(1): 93-95.
LI Jinkai1, SUN Xinchen1, ZHOU Sumin2, SUN Xiangdong3, MA Jianxin4, LIU Hai3, WU Yang4. Automatic Measurement of Photon Beam Output Factor for Medical Accelerator. China Medical Devices, 2018, 33(1): 93-95.
