群馬大学_重粒子線医学研究センター_英語版
  • 文字サイズ変更
  • 文字サイズ変更_小
  • 文字サイズ変更_中
  • 文字サイズ変更_大
  • Select Language

What are Heavy Ions?

What are Heavy Ions?

Radiation releases energy while traveling through space or matters in the form of waves or particles. Radiation composed of particles heavier than electrons is called a particle beam, and radiation composed of particles heavier than helium is specifically called a “heavy-ion” beam.
Currently, carbon ion beams are used for heavy ion cancer therapy.

図1

Heavy Ion Therapy

Heavy ions are accelerated to approximately 70% of the speed of light and applied to patients in order to treat deep-seated cancer within the bodies. Heavy ion cancer therapy allows the tumors to be treated without using invasive procedures such as surgery and without causing pain.

図2