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(zhì)子和重離子治療加速器

中國(guó)質(zhì)子和重離子治療技術(shù)取得重要進(jìn)展，強(qiáng)流質(zhì)子回旋加速器等指標(biāo)和性能更加優(yōu)越，使中國(guó)成為少數(shù)擁有新一代放射性核束加速器的國(guó)家，是中國(guó)醫(yī)療發(fā)展特別是腫瘤治療水平的重要標(biāo)志。繼重離子束癌癥治療技術(shù)于2006年12月進(jìn)入臨床研究階段并收到顯著療效后，中國(guó)已成為國(guó)際上第四個(gè)有能力進(jìn)行重離子治癌臨床研究的國(guó)家。在質(zhì)子治療方面，中國(guó)已研發(fā)出具有自主知識(shí)產(chǎn)權(quán)的100MeV回旋加速器，生產(chǎn)出了PET醫(yī)用回旋加速器樣機(jī)，并將實(shí)現(xiàn)產(chǎn)業(yè)化；230MeV質(zhì)子治療專用加速器已完成關(guān)鍵技術(shù)研發(fā)，進(jìn)入整機(jī)研制階段。甘肅武威重離子治療系統(tǒng)已正式投入臨床治療，蘭州重離子治癌系統(tǒng)已進(jìn)入調(diào)試階段。