Hauv thaj chaw kho mob thiab kuaj mob, X-ray thev naus laus zis tau ua lub luag haujlwm tseem ceeb rau ntau xyoo lawm.Ntawm cov khoom sib txawv uas ua rau lub tshuab X-ray, qhov ruaj khov anode X-ray raj tau dhau los ua cov khoom siv tseem ceeb.Cov hlab no tsis tsuas yog muab cov hluav taws xob xav tau rau kev kuaj pom, tab sis kuj txiav txim siab qhov zoo thiab ua haujlwm ntawm tag nrho X-ray system.Hauv qhov blog no, peb yuav tshawb txog cov ncauj lus hauv cov kab hluav taws xob xoo hluav taws xob ruaj khov thiab yuav ua li cas cov txheej txheem thev naus laus zis tau hloov pauv qhov tseem ceeb ntawm cov khoom no.
Los ntawm pib mus rau niaj hnub incarnation:
Nyob ruaj ruaj anode X-ray rajmuaj keeb kwm ntev rov qab mus rau thawj qhov kev tshawb pom ntawm X-rays los ntawm Wilhelm Conrad Roentgen thaum ntxov xyoo pua 20th.Thaum xub thawj, cov hlab ntsha muaj ib qho yooj yim iav enclosure nyob hauv cathode thiab anode.Vim nws cov ntsiab lus melting siab, lub anode feem ntau yog ua los ntawm tungsten, uas tuaj yeem cuam tshuam rau cov dej ntws ntawm electrons rau lub sijhawm ntev yam tsis muaj kev puas tsuaj.
Sij hawm dhau mus, raws li qhov xav tau kom muaj qhov tseeb thiab qhov tseeb ntau ntxiv, kev nce qib tseem ceeb tau ua hauv kev tsim thiab kev tsim kho ntawm qhov chaw nres tsheb anode X-ray raj.Kev taw qhia ntawm rotating anode raj thiab kev txhim kho cov ntaub ntawv muaj zog tso cai rau kom muaj cua sov dissipation thiab ntau zog tso zis.Txawm li cas los xij, tus nqi thiab qhov nyuaj ntawm rotating anode hlab tau txwv lawv txoj kev siv dav dav, ua rau cov raj anode nyob ruaj ruaj yog qhov kev xaiv tseem ceeb rau kev kho mob.
Tsis ntev los no tiam sis nyob rau hauv taag anode X-ray raj:
Tsis ntev los no, kev txhim kho thev naus laus zis tseem ceeb tau ua rau muaj kev rov tshwm sim hauv qhov chaw ntawm qhov chaw ruaj khov-anode X-ray raj.Cov kev nce qib no ua rau muaj peev xwm ua kom pom kev zoo dua qub, cov khoom siv hluav taws xob ntau dua, thiab ua kom muaj cua sov ntau dua, ua rau lawv txhim khu kev qha thiab ua haujlwm tau zoo dua li yav dhau los.
Ib qho tseem ceeb tshaj plaws yog kev siv cov hlau refractory xws li molybdenum thiab tungsten-rhenium alloys ua cov khoom siv anode.Cov hlau no muaj qhov ua tau zoo heev thaum tshav kub kub, tso cai rau cov raj tuaj yeem tiv taus lub zog siab dua thiab lub sijhawm ntev dua.Qhov kev txhim kho no tau ua rau muaj txiaj ntsig zoo rau kev txhim kho cov duab zoo thiab txo qis lub sijhawm ntsuas hauv cov txheej txheem kuaj mob.
Tsis tas li ntawd, lub tshuab cua txias tshiab tau qhia txog cov cua sov tsim tawm thaum lub sij hawm X-ray emission.Nrog rau kev sib ntxiv ntawm cov kua hlau los yog tsim tshwj xeeb tsim anode tuav, lub peev xwm ntawm cov cua sov dissipation ntawm cov hlab ntsha anode ruaj khov kho tau zoo, txo qhov kev pheej hmoo ntawm overheating thiab txuas ntxiv lub neej tag nrho ntawm cov hlab.
Lwm qhov zoo siab tshaj plaws yog kev sib koom ua ke ntawm cov duab thaij duab niaj hnub xws li cov cuab yeej digital thiab cov duab ua cov algorithms nrog tsau anode X-ray raj.Qhov kev sib koom ua ke no tso cai rau kev siv cov txuj ci tau txais cov duab zoo xws li digital tomosynthesis thiab cone beam computed tomography (CBCT), uas ua rau muaj qhov tseeb 3D rov tsim dua tshiab thiab txhim kho kev kuaj mob.
nyob rau hauv xaus:
Hauv kev xaus, tus qauv mus rauNyob ruaj ruaj anode X-ray raj yog hloov zuj zus mus tas li kom tau raws li qhov xav tau ntawm kev kho mob niaj hnub.Kev nce qib hauv cov ntaub ntawv, cov txheej txheem ua kom txias, thiab kev sib koom ua ke ntawm cov duab kos duab thev naus laus zis tau hloov pauv qhov tseem ceeb ntawm X-ray systems.Raws li qhov tshwm sim, tam sim no cov kws kho mob tuaj yeem muab cov neeg mob nrog cov duab zoo dua qub, tsis tshua muaj hluav taws xob raug hluav taws xob thiab cov ntaub ntawv txheeb xyuas meej dua.Nws yog qhov tseeb tias cov hlab ntsha anode X-ray txuas ntxiv yuav ua lub luag haujlwm tseem ceeb hauv kev kho mob, tsav tsheb tshiab thiab pab txhawb kev kho tus neeg mob zoo dua.
Post lub sij hawm: Jun-15-2023