《英文msh词典》Radiotherapy,High-Energy
[主题词] Radiotherapy,High-Energy
[同义词] Megavolt Radiotherapy
[入口词] High-Energy Radiotherapy
[入口词] Radiotherapy,Megavolt
[入口词] High Energy Radiotherapy
[入口词] Radiotherapy,High Energy
[中文释义] 放射疗法,高能
[英文释义] Radiotherapy using high-energy (megavolt or higher) ionizing radiation. Types of radiation include gamma rays,produced by a radioisotope within a teletherapy unit; x-rays,electrons,protons,alpha particles (helium ions) and heavy charged ions,produced by particle acceleration; and neutrons and pi-mesons (pions),produced as secondary particles following bombardment of a target with a primary particle.