<title>utine quality assurance and quality control procedure for conventional x - ray simulator
<author>ang Chun-guang, CEN He-qing, QI Zhen-yu, et al. Cancer Center of Sun Yat - sen University, Guangzhou 510060 China
abstractis study is to introduce the items, methods and frequencies of routine quality assurance (QA) and quality control (QC) checks for x - ray simulator. These experiments help improve the standard of QA and QC on x - ray simulator. Radiation physicists in other centers may make their own QA and QC checklists following these protocols to ensure the accuracy of radiotherapy.