An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک



collimated beam
  تابه‌ی ِ همراستا  
tâbe-ye hamrâstâ
Fr.: faisceau collimaté  

A → beam of → photons or → subatomic particles with a narrow → cross section that has little or no spatial spread.

See also:collimated; → beam.