Hauv kev ua haujlwm ntawm kev kho mob kev ntsuas thiab kev kuaj mob, X-ray thev naus laus zis tau ua si lub luag haujlwm tseem ceeb rau xyoo lawm. Ntawm cov ntau yam uas ua rau lub tshuab xoo hluav taws xob, lub raj tsau xaim x-duab tshav ntuj tau dhau los ua cov khoom siv tseem ceeb. Cov leeg no tsis yog muab cov hluav taws xob yuav tsum muaj rau kev ua kom muaj kev xav, tab sis kuj txiav txim siab qhov zoo thiab ua tau zoo ntawm cov xoo hluav taws xob. Hauv cov blog no, peb yuav tshawb txog cov ncauj ke hauv tsau x-ray tub thiab seb cov kev hloov thev naus laus zis tau txais kev hloov pauv no tseem ceeb.
Txij thaum pib ua niaj hnub incarnation:
Nyob ruaj ruaj xoo hluav taws xobMuaj cov keeb kwm ntev yos rov qab rau thawj qhov kev tshawb pom ntawm x-rays los ntawm Wilhelm Conenten Roentgen thaum ntxov xyoo pua 20th. Thaum pib, cov hlab muaj ntawm cov khoom yooj yim iav yooj yim hauv tsev lub cathode thiab anode. Vim nws lub siab melting taw tes, lub anode feem ntau yog ua los ntawm tungsten, uas tuaj yeem nthuav tawm rau cov hluav taws xob hluav taws xob tau ntev yam tsis muaj kev puas tsuaj.
Sij hawm dhau mus, raws li qhov kev xav tau kom meej dua thiab muaj kev nyuaj tshaj plaws loj hlob, cov kev nce qib tseem ceeb tau ua rau hauv chaw ruaj khov thiab kev tsim kho cov nplaim xoo. Cov lus qhia txog kev tig matode ntawm cov leeg thiab kev txhim kho cov khoom siv muaj zog tso cai rau cov cua sov dissipation thiab zog zog tawm. Txawm li cas los xij, tus nqi thiab kev sib luag ntawm kev rotating anode cov leeg tau txwv lawv cov thoob plaws cov tub ntxhais kawm ntawv kos npe rau cov kev xaiv tseem ceeb rau kev kuaj mob.
Tsis ntev los no cov ncauj lus tsis ntev los no hauv tsau cov x-ray tub:
Tsis ntev los no, kev txhim kho cov txheej txheem tseem ceeb tau ua rau muaj kev tawm tsam nyob rau hauv cov muaj zog ntawm tsau-anode xoo hluav taws xob. Cov kev ua kom zoo no pab txhawb kev ua kom paub lub peev xwm, ntau dua kev tiv thaiv hluav taws xob, ua rau lawv txhim khu kev qha ntau dua li yav dhau los.
Lub chaw uas tsis yog siv yog kev siv hlau refractory xws li molybdenum thiab tungsten-rhoy alloys raws li cov khoom anode. Cov hlau no muaj cov cua sov ua tau zoo heev, pub cov hlab kom tiv thaiv ntau dua cov zog hluav taws xob ntau dua thiab ntev dua lub sijhawm. Txoj kev txhim kho no tau pab tau zoo heev rau kev txhim kho cov duab zoo thiab txo qhov kev ntsuas lub sijhawm hauv cov txheej txheem kev kuaj mob.
Tsis tas li ntawd, ib lub tshuab cua txias tshiab tau qhia rau tus account rau cov cua sov tsim thaum lub sijhawm xoo hluav taws xob. Nrog rau kev sib ntxiv ntawm cov hlau ua kua lossis tshwj xeeb tsim anode tuav, cov leeg cua sov ntawm cov kev pheej hmoo ntawm lub neej ruaj khov, txo qhov kev pheej hmoo ntawm overheating thiab txuas lub neej tag nrho ntawm cov hlab.
Lwm qhov kev sib koom ua ke yog kev sib koom ua ke ntawm kev siv thev naus laus zis niaj hnub xws li cov ntaub ntawv pov thawj digital thiab cov duab ua algorithms nrog tsau cov x-roode. Cov kev sib xyaw ua ke no tso cai rau kev siv cov duab kos duab ntxiv rau tom qab (cbct), uas ua rau muaj 3D hloov 3D ntau dua thiab txhim kho kev kuaj mob.
Hauv kev xaus:
Hauv kev xaus, tus qauv ntawmNyob ruaj ruaj xoo hluav taws xob yog constiently evolle kom tau raws li qhov xav tau ntawm kev kho mob niaj hnub. Kev nce qib hauv cov ntaub ntawv, cov tshuab ua kom txias, thiab kev sib koom ua ke ntawm ntug kev thev naus laus zis tau hloov kho qhov tseem ceeb ntawm x-ray tshuab. Raws li qhov tshwm sim, cov kws kho mob tuaj yeem muab cov duab uas muaj cov duab zoo dua qub, tsawg hluav taws xob cov ntaub ntawv. Nws yog qhov tseeb tias tsau cov x-roots yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb hauv kev kho mob, tsav tsheb ua kom zoo dua los txhim kho cov neeg mob.
Lub Sijhawm Post: Jun-15-2023