Visible Light vs X rays
Electromagnetic spectrum yog ib lub tswv yim muaj txiaj ntsig zoo siv hauv kev kawm txog physics. X-rays yog ib hom hluav taws xob hluav taws xob uas siv rau kev kho mob. Qhov pom tseeb tshaj plaws ntawm kev siv lub teeb pom kev yog tib neeg lub zeem muag. Hauv tsab xov xwm no, peb yuav tham txog dab tsi X-rays thiab pom lub teeb yog dab tsi, lawv cov ntsiab lus, kev siv, tsim lub teeb pom kev thiab x-rays, thiab thaum kawg qhov txawv ntawm qhov pom lub teeb thiab X-rays.
X rays
X-rays yog hom hluav taws xob hluav taws xob. Electromagnetic nthwv dej tau muab faib ua ob peb cheeb tsam raws li lawv lub zog. X-rays, ultraviolet, infrared, pom, xov tooj cua tsis muaj npe rau qee qhov ntawm lawv. Txhua yam peb pom yog vim qhov pom thaj tsam ntawm electromagnetic spectrum. Ib qho spectrum yog zajlus ntawm kev siv zog piv rau lub zog ntawm electromagnetic rays. Lub zog kuj tuaj yeem sawv cev hauv wavelength lossis zaus. Lub wavelength ntawm X-rays muaj qhov sib txawv ntawm 0.01 nanometers rau 10 nanometers. Los ntawm kev siv qhov sib npaug C=f λ, qhov C yog qhov ceev ntawm lub teeb hauv lub tshuab nqus tsev, f yog qhov zaus ntawm lub tshuab hluav taws xob, thiab λ yog qhov wavelength ntawm electromagnetic yoj, peb tau txais ntau zaus rau X-rays los ntawm 30 petahertz (3 x 1016 Hz) rau 30 exahertz (3 x 1019 Hz).
X rays tau siv dav hauv kev siv kho mob. X-rays yog siv los ua daim ntawv qhia sab hauv ntawm tib neeg lub cev siv qhov sib txawv ntawm X-rays. X-rays yog tsim los ntawm kev sib tsoo ntawm lub zog hluav taws xob hluav taws xob siab nrog cov hlau. Lub deceleration sai ntawm cov electrons ua rau lub zog siab photons raug tso tawm. Qhov no hu ua braking radiation. Cov hluav taws xob hluav taws xob siab kuj tseem rub tawm cov khoom siv hluav taws xob los ntawm cov qib zog sab hauv. Cov electrons ntawm sab nraud lub zog hloov mus rau theem qis kom ruaj khov rau lub atom. Qhov no ua rau muaj tus cwj pwm emission nrog peaks ntawm cov wavelengths.
Visible Light
Pom lub teeb pom tseeb yog qhov tseem ceeb tshaj plaws ntawm cov hluav taws xob hluav taws xob hluav taws xob vim nws yog lub hauv paus ntawm tib neeg lub zeem muag. Lub teeb pom kev tau txais lub npe los ntawm tib neeg lub zeem muag nws tus kheej. Lub teeb pom kev tau muab faib ua 7 xim loj, tab sis muaj cov xim tsis kawg ntawm lawv. Lub ntsiab 7 xim yog Violet, Indigo, Xiav, Ntsuab, Daj, Txiv kab ntxwv, thiab Liab. Lub teeb pom kev siv thaj tsam wavelength ntawm 390nm - 750nm. Qhov no wavelength ntau yog tsawg heev piv rau ntau yam ntawm lwm hom electromagnetic tsis. Tib neeg lub qhov muag tsuas muaj peev xwm saib lub qhov rais nqaim heev ntawm lub teeb thaum muaj kev txhawj xeeb tag nrho. Pom pom spectrum yog ciam teb los ntawm cov hluav taws xob infrared los ntawm qis kawg thiab ultraviolet hluav taws xob los ntawm lub zog siab kawg.
Dab tsi yog qhov txawv ntawm X-rays thiab pom lub teeb?
• X rays yog lub zog hluav taws xob hluav taws xob siab, tab sis pom lub teeb yog nruab nrab lub zog hluav taws xob hluav taws xob.
• Lub spectrum pom yog nqaim heev piv rau X-ray spectrum.
• X rays tuaj yeem nkag mus rau tib neeg lub cev tab sis pom lub teeb tsis muaj peev xwm ua qhov ntawd.
