Hospitals use gamma rays to treat certain cancers.
Tips
usage
伽马 (gāmǎ) is the phonetic transliteration of the Greek letter γ (gamma). The 伽 character is read gā here (not jiā as in 瑜伽 yújiā 'yoga' — same character, different reading by context). 射线 ('shooting line') means 'ray' in physics.
culture
Famous in pop culture as the radiation that creates the Hulk (绿巨人, Lǜ Jùrén) — Bruce Banner is hit by 伽马射线 in the Marvel origin story.
