Ib gamma ray, tseem hu ua gamma hluav taws xob, yog ib daim ntawv nkag mus ntawm hluav taws xob hluav taws xob tshwm sim los ntawm cov hluav taws xob tawg ntawm atomic nuclei. Nws muaj qhov luv tshaj wavelength electromagnetic tsis thiab thiaj li muab lub zog photon siab tshaj.
Dab tsi yog gamma rays thiab lawv siv rau dab tsi?
Gamma rays yog ionizing electromagnetic tawg, tau los ntawm kev lwj ntawm ib qho atomic nucleus. Gamma rays yog qhov nkag mus ntau dua, hauv qhov teeb meem, thiab tuaj yeem ua rau lub hlwb puas tsuaj mus rau qhov zoo. Gamma rays yog siv nyob rau hauv tshuaj kho mob (radiotherapy), kev lag luam (sterilization thiab tshuaj tua kab mob) thiab kev lag luam nuclear.
Dab tsi yog gamma ray yooj yim txhais?
Gamma rays muaj qhov tsawg tshaj plaws wavelengths thiab lub zog tshaj plaws ntawm txhua yoj hauv electromagnetic spectrum. Lawv raug tsim los ntawm cov khoom kub tshaj plaws thiab muaj zog tshaj plaws hauv lub ntiaj teb, xws li cov hnub qub neutron thiab pulsars, supernova tawg, thiab thaj chaw nyob ib ncig ntawm qhov dub.
Puas gamma rays puas txaus ntshai?
Gamma rays yoghluav taws xob txaus ntshai rau tag nrho lub cev. Lawv tuaj yeem nkag tau yooj yim rau cov teeb meem uas tuaj yeem nres alpha thiab beta hais, xws li tawv nqaij thiab khaub ncaws. Gamma rays muaj ntau lub zog nkag mus uas ob peb nti ntawm cov khoom siv ntom ntom xws li txhuas, lossis txawm tias ob peb ko taw ntawm pob zeb yuav tsum tau nres lawv.
piv txwv ntawm gamma rays yog dab tsi?
Gamma rays yog cov photons emission los ntawm atomic nuclear lwj ntawm radioactive isotopes-piv txwv li, 137Cs (cesium) or 60Co (cob alt).
