Qhov txawv ntawmduab intensifiersthiabflat panel detectors.Nyob hauv teb chawsdaim duab kho mob, X-rays ua lub luag haujlwm tseem ceeb hauv kev kuaj mob thiab kho ntau yam kab mob thiab kev raug mob.Kev nce qib hauv thev naus laus zis tau ua rau kev txhim kho cov khoom siv hluav taws xob xoo hluav taws xob ntau dua.Ob qhov kev tsim kho tshiab no yog cov duab intensifiers thiab lub vaj huam sib luag tiaj tus ntes.Txawm hais tias ob qho tib si tsim los txhim kho X-ray duab, muaj qhov sib txawv tseem ceeb ntawm ob lub thev naus laus zis.
Yuav kom nkag siab qhov txawv, cia peb pib nrog cov duab intensifiers.Cov duab intensifiers yog cov khoom siv hluav taws xob-kho qhov muag feem ntau siv hauv kev lag luam hluav taws xob.Lawv lub luag haujlwm tseem ceeb yog txhawm rau txhim kho cov duab X-ray, ua rau lawv zoo li ci ntsa iab thiab nthuav dav.Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov duab intensifier yog hloov X-ray photons rau hauv pom lub teeb photons, ua kom muaj zog ntawm cov duab X-ray qub.
Ib qho tseem ceeb ntawm cov duab intensifier yog cov input phosphor, uas absorbs X-ray photons thiab emits pom lub teeb photons.Cov photons no tau nrawm dua thiab tsom mus rau qhov tso zis phosphor, tsim cov duab loj.Cov duab loj no tuaj yeem ntes tau los ntawm lub koob yees duab lossis tso tawm ntawm lub monitor rau kev kuaj mob.Cov duab intensifiers muaj txiaj ntsig zoo ntawm kev muab cov duab hauv lub sijhawm tiag tiag thiab yog qhov zoo tagnrho rau cov txheej txheem uas xav tau cov duab tiag tiag, xws li fluoroscopy.
Flat panel detectors (FPDs) tau dhau los ua lwm txoj hauv kev rau cov duab intensifiers.Flat panel detectors yog cov khoom siv hauv lub xeev uas ncaj qha ntes cov duab X-ray thiab hloov mus rau hauv cov teeb liab digital.Tsis zoo li cov duab intensifiers, FPDs tsis cia siab rau hloov X-ray photons rau hauv pom lub teeb photons.Lawv siv cov array ntawm nyias zaj duab xis transistors (TFTs) los hloov X-ray photons rau hauv hluav taws xob teeb liab.
Lub ntsiab kom zoo dua ntawm cov vaj huam sib luag tiaj tus ntes yog lub peev xwm los ntes cov duab digital siab nrog kev sib piv zoo dua thiab ntau yam.Cov teeb liab digital no tuaj yeem ua tiav ncaj qha thiab tso tawm hauv lub computer rau kev tshuaj xyuas tam sim.Flat vaj huam sib luag ntes kuj muaj qhov loj dua ntawm kev pom thiab ntau dua kev tshawb nrhiav quantum efficiency (DQE) piv rau cov duab intensifiers, ua rau cov duab zoo dua.
Flat panel detectors muaj qhov zoo ntawm qhov yooj yim thiab ntau yam.Lawv tuaj yeem yooj yim ua ke rau hauv cov tshuab X-ray uas twb muaj lawm, hloov cov duab ib txwm siv zog yam tsis muaj kev hloov kho dav.
Qhov txawv ntawmX-ray duab intensifiersthiab cov vaj huam sib luag tiaj tus ntes nyob hauv lawv cov cuab yeej siv thiab kev ua haujlwm.Cov duab intensifiers ua kom cov duab X-ray los ntawm kev hloov X-ray photons rau hauv pom lub teeb photons, thaum lub vaj huam sib luag ntes ncaj qha ntes cov duab X-ray thiab hloov mus rau hauv cov teeb liab digital.Ob lub tswv yim muaj lawv qhov zoo thiab qhov tsis zoo, thiab kev xaiv ntawm lawv nyob ntawm cov kev xav tau tshwj xeeb, kev xav txog tus nqi, thiab qib ntawm cov duab zoo yuav tsum tau ua.Ob daim duab intensifiers thiab cov khoom siv lub tiaj tiaj pab txhawb kev ua haujlwm ntawm X-ray duab thiab txhim kho kev saib xyuas neeg mob.
Post lub sij hawm: Sep-13-2023