Proton/Heavy Ion Accelerators for Medical Use 

Significant progress has been made in therapeutic use of protons/heavy ions in China. Key instruments, such as high intensity proton cyclotrons, have been performing well. China has joined a few other countries in owning new-generation radioactive beam accelerators. This represents an important medical milestone in China, especially in cancer treatment. Heavy ion cancer therapy entered the clinical trial phase in December 2006, and results were encouraging. China was the fourth country in the world to have conducted clinical trials to evaluate the effectiveness of heavy ion cancer therapy. In the area of proton therapy, a 100 MeV cyclotron has been built with indigenously developed technology. A prototype PET cyclotron has been developed, which is expected to be put into mass production. The research phase of the 230 MeV proton therapy-specific accelerator project has been completed, and the building process is underway. A heavy ion therapy system has been in clinical use in Wuwei, Gansu, and the heavy ion cancer treatment equipment is being commissioned in Lanzhou, Gansu. 

質子和重離子治療加速器

中國質子和重離子治療技術取得重要進展，強流質子回旋加速器等指標和性能更加優越，使中國成為少數擁有新一代放射性核束加速器的國家，是中國醫療發展特別是腫瘤治療水平的重要標志。繼重離子束癌癥治療技術于2006年12月進入臨床研究階段并收到顯著療效后，中國已成為國際上第四個有能力進行重離子治癌臨床研究的國家。在質子治療方面，中國已研發出具有自主知識產權的100MeV回旋加速器，生產出了PET醫用回旋加速器樣機，并將實現產業化；230MeV質子治療專用加速器已完成關鍵技術研發，進入整機研制階段。甘肅武威重離子治療系統已正式投入臨床治療，蘭州重離子治癌系統已進入調試階段。