【日本《原子能视野》2003年5月刊报道】 1. 重粒子的概念 所谓重粒子就是比电子重的粒子,它是一种基本粒子。实际上,用以治疗癌症的重粒子中,除了不带电的中子射线之外,还有带电的质子射线、氦、碳及氖离子。所谓利用重粒子射线治疗癌症就是加速重离子,使其处于高能状态,从而 [Japan’s “atomic energy field” in May 2003 reported] 1. The concept of heavy particles The so-called heavy particles is heavier than the electronic particles, it is a basic particle. In fact, heavy particles used to treat cancer contain charged proton rays, helium, carbon and neon ions in addition to uncharged neutron rays. The so-called heavy particle radiation treatment of cancer is to accelerate heavy ions, so that it is in a state of high energy, which