-duab ci siv
Muaj ob lub tswv yim sib txawv ntawm kev siv hluav taws xob ntawm gamma rays, suav nrog radioactivity (lub ntsiab lus siv hluav taws xob) thiab kev tiv thaiv tsis ua haujlwm (kev tiv thaiv tus qauv). Tus naj npawb ntawm cov xov tooj cua hauv ntu anabolic lwj hauv lub sijhawm hu ua radioactivity, thiab radioactivity hloov nrog lub sijhawm. Txoj cai hloov pauv yog: rau tib hom of hluav taws xob qhov hluav taws xob, kev siv hluav taws xob muaj ntau heev, tab sis qhov tsis muaj qhov cuam tshuam ntawm γ-duab hluav taws xob tsis tas (qhov γ-duab hluav taws xob tsis tso tawm γ photons hauv qhov tsis zoo ntawm txhua nucleus, xws li 铥 170).