Kwimiba yemifanekiso yezonyango kunye nokuxilongwa, iteknoloji ye-X-ray idlale indima ebalulekileyo kangangamashumi eminyaka. Phakathi kwezinto ezahlukeneyo ezenza umatshini we-X-ray, ityhubhu ye-X-ray ye-anode esisigxina iye yaba yinxalenye ebalulekileyo yezixhobo. Ezi tyhubhu aziboneleli nje kuphela ngemitha efunekayo kwimifanekiso, kodwa zikwamisela umgangatho kunye nokusebenza kakuhle kwenkqubo ye-X-ray yonke. Kule bhlog, siza kuphonononga iindlela ezisetyenziswa kwiityhubhu ze-X-ray ze-anode esisigxina kunye nendlela inkqubela phambili kwezobuchwepheshe eguqula ngayo le nxalenye ibalulekileyo.
Ukususela ekuqaleni ukuya ekuzalweni kwanamhlanje:
Iityhubhu ze-X-ray ze-anode ezizinzileyozinembali ende esusela ekufumanekeni kokuqala kwee-X-ray nguWilhelm Conrad Roentgen ekuqaleni kwenkulungwane yama-20. Ekuqaleni, iityhubhu zazineglasi elula ebiyelweyo egcina i-cathode kunye ne-anode. Ngenxa yendawo yayo yokunyibilika ephezulu, i-anode idla ngokwenziwa nge-tungsten, enokuvezwa kukuhamba kwee-electron ixesha elide ngaphandle komonakalo.
Njengoko imfuneko yokufota ngokuchanekileyo nangokuchanekileyo yayikhula, kuye kwenziwa inkqubela phambili enkulu kuyilo nokwakhiwa kweetyhubhu ze-X-ray ze-anode ezisisigxina. Ukungeniswa kweetyhubhu ze-anode ezijikelezayo kunye nophuhliso lwezinto ezinamandla kwavumela ukwanda kokusasazwa kobushushu kunye nokukhupha amandla aphezulu. Nangona kunjalo, iindleko kunye nobunzima beetyhubhu ze-anode ezijikelezayo kuye kwanciphisa ukwamkelwa kwazo ngokubanzi, okwenza iityhubhu ze-anode ezisisigxina zibe lolona khetho luphambili kwimifanekiso yezonyango.
Iindlela zamva nje kwiityhubhu ze-X-ray ze-anode ezisisigxina:
Kutshanje, uphuculo olukhulu kwezobuchwepheshe lukhokelele ekuvuselelweni kokuthandwa kweetyhubhu ze-X-ray ezine-anode esisigxina. Ezi nkqubela phambili zivumela amandla okwenziwa kwemifanekiso aphuculweyo, amandla aphezulu okukhupha, kunye nokumelana nobushushu okukhulu, nto leyo ezenza zithembeke kwaye zisebenze kakuhle kunangaphambili.
Umkhwa ophawulekayo kukusetyenziswa kweentsimbi ezinganyangekiyo ezifana ne-molybdenum kunye ne-tungsten-rhenium alloys njengezinto ze-anode. Ezi ntsimbi zinokumelana okuhle nobushushu, zivumela iityhubhu ukuba zimelane namanqanaba aphezulu ombane kunye namaxesha okuvezwa ixesha elide. Olu phuhliso lube negalelo elikhulu ekuphuculeni umgangatho womfanekiso kunye nokunciphisa ixesha lokufota kwinkqubo yokuxilonga.
Ukongeza, kuye kwaziswa indlela entsha yokupholisa ukuze kujongwe ubushushu obuveliswa ngexesha lokukhutshwa kwe-X-ray. Ngokongezwa kwesinyithi esilulwelo okanye izibambi ze-anode ezenzelwe ngokukodwa, amandla okusasaza ubushushu kwiityhubhu ze-anode ezisisigxina ayanda kakhulu, nto leyo enciphisa umngcipheko wokugqithisa kakhulu kwaye yandisa ubomi betyhubhu iyonke.
Enye indlela enomdla kukudibanisa ubuchwepheshe bemifanekiso yanamhlanje obufana nee-digital detectors kunye nee-algorithms zokucubungula imifanekiso kunye neetyhubhu ze-X-ray ze-anode ezisisigxina. Olu kudibanisa luvumela ukusetyenziswa kweendlela zokufumana imifanekiso eziphambili ezifana ne-digital tomosynthesis kunye ne-cone beam computed tomography (CBCT), nto leyo ekhokelela ekulungisweni kwakhona kwe-3D ngokuchanekileyo kunye nokuphuculwa kokuxilongwa.
ukuququmbela:
Ukuqukumbela, umkhwa oyaiityhubhu ze-X-ray ze-anode ezisisigxina itshintsha rhoqo ukuze ihlangabezane neemfuno zemifanekiso yezonyango yanamhlanje. Ukuqhubela phambili kwizixhobo, iindlela zokupholisa, kunye nokuhlanganiswa kwetekhnoloji yemifanekiso esemgangathweni kuguqule eli candelo libalulekileyo leenkqubo ze-X-ray. Ngenxa yoko, iingcali zezempilo ngoku zinokubonelela izigulana ngomgangatho ongcono womfanekiso, ukuvezwa kancinci kwemitha kunye nolwazi oluchanekileyo lokuxilonga. Kucacile ukuba iityhubhu ze-X-ray ze-anode ezisisigxina ziya kuqhubeka nokudlala indima ebalulekileyo kwimifanekiso yezonyango, ukuqhuba ubuchule kunye negalelo ekuphuculweni kokhathalelo lwezigulane.
Ixesha lokuthumela: Juni-15-2023