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 '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); Bruce Banner is hit by 伽马射线 in the Marvel origin story.
