CCDs yog cov cuab yeej muaj zog heev rau cov kws tshawb fawb hnub qub vim thaum lub koob yees duab lub suab yog synchronized nrog lub ntiaj teb kev sib hloov, lub koob yees duab tuaj yeem "saib" ntawm ib qho chaw hauv qhov chaw rau ib teev ntawm ib lub sijhawm.
Vim li cas cov neeg hnub qub siv CCDs?
Astronomers siv cov khoom siv them nqi sib txuas (CCDs) rau kev sau thiab khaws lub teeb ntawm cov khoom nyob deb.
CCDs yog dab tsi thiab vim li cas lawv thiaj li muaj txiaj ntsig zoo rau cov tsom iav niaj hnub no?
Q. CCDs muaj txiaj ntsig zoo dua li lwm hom kev ntes? OI: CCDs yog thawj ob-dimensional array semiconductor imaging devices yuav tsum tau tsim. Muab piv rau lawv cov thawj coj, lawv muaj qhov ntau dua spatial daws teeb meem, zoo dua ntawm cov duab ci ntsa iab, muaj zog dua, thiab siv zog tsawg.
Qhov twg hauv qab no yog qhov zoo ntawm kev siv CCDs?
Qhov txiaj ntsig tseem ceeb ntawm CCDs yog lawv rhiab heev, muaj ntau yam thiab linearity. Lub rhiab heev, los yog quantum efficiency, tsuas yog ib feem ntawm photons tshwm sim ntawm lub nti uas tau kuaj pom. Nws yog ib qho rau CCDs kom ua tiav quantum efficiency ntawm li 80%.
Vim li cas CCDs nyiam tshaj daim phiaj duab?
Dab tsi yog qhov zoo ntawm CCD hla lub phaj duab? Zaj duab xis kaw 5% ntawm lub teeb ncav cuag nws thiab CCD cov ntaub ntawv 75% ntawm lub teeb ncav cuag nws.
