I-DR (Digital X-ray) imishini yokutholwa isiphenduke ithuluzi elibalulekile lokuxilonga ezibhedlela zesimanje ngenxa yezinzuzo zalo zekhwalithi yesithombe ecacile, izidingo zobuchwepheshe eziphansi, nentengo efanelekile. Lapho uthenga imishini yoDkt yezokwelapha, izibhedlela kufanele zinake ngokukhethekile usayizi wazo ophelele, njengoba usayizi ogxile unomthelela obalulekile ekusebenzeni kokucabanga.
Iphuzu lokugxila lemishini ye-DR empeleni libhekisela kusayizi wokugxila oqongqo lwe-X-ray tube, okuyisikhundla lapho kwenziwa khona ama-elektroni nge-anode okuqondiwe kuyo lapho kukhiqizwa ama-x-ray. Usayizi wephuzu lokugxila unquma indawo yokuxhumana ye-elektroni eshaya indawo okuhlosiwe, okuthinta ukucaca kwesithombe sedijithali.
Ngokukhethekile, kukhudlwana ukugxila, okufiphala imiphetho yesithombe, futhi okushiwo ngokwengeziwe i-penumbra phenomenon, okuholela esithombeni esingahlelekile. Lokhu kungenxa yokuthi i-X-ray beam ekhiqizwe yindawo enkulu yokugxila ihluphayo ngokwengeziwe, okwenza ukuthi imiphetho yesithombe ilungiselelwe ama-x-rays ngama-x-rays kusuka ku-multiple. Ngokuphambene nalokho, okuncane okugxilwe kuyo, okubukhali imiphetho yesithombe, futhi isithombe sonke sicacile. I-X-ray Beam ekhiqizwe yindawo encane yokugxila egxile kakhulu, engabonisa kahle ukwakheka nokwakheka kwesihloko.
Kodwa-ke, kufanele kuqashelwe ukuthi yize amaphuzu amancane okugxila angaletha ukucaciswa kwesithombe esiphakeme, umthamo wazo wokuvezwa ulinganiselwe futhi kungenzeka ungathembeki ngokwanele lapho uthumba izindawo ezibanzi. Ngaphezu kwalokho, amandla agxilwe eqopheni elincane lokugxila liphezulu, elingakwazi ukukhiqiza ukushisa kalula futhi libangele ukuthi ingagxili lincibilike. Ngakho-ke, kuzinhlelo zokusebenza ezisebenzayo, kuyadingeka ukuthi ukhethe usayizi ofanele wokugxila ngokususelwa endaweni yokudubula kanye nesimo esithile sesiguli.
Ukubhekana nalolu daba, amadivaysi amaningi o-DR okwamanje emakethe amukele ubuchwepheshe bokugxila okubili. Le ndlela isebenzisa amasethi amabili e-filaments of ahlukene osayizi ukukhiqiza amaphuzu amakhulu aphelele futhi amancane asebenzayo, ngokulandelana. Odokotela bangakhetha usayizi ofanelekile wokugxila ngokusho kwezidingo zabo zokudubula, eziqinisekisa ukucaciswa kwesithombe futhi kugweme izinkinga zekhwalithi yesithombe ezibangelwa amaphuzu agxile kakhulu noma amancane kakhulu.
Isibonelo, uhlelo lwe-Huarui Magame Digital Digital Photography System lufakwe ubuchwepheshe bokugxila okubili kwe-tube kanye ne-flat panel detectors. I-tube yamandla amakhulu okushisa kanye ne-generator ephezulu yamandla alolu hlelo angaqinisekisa ukusebenza okuzinzile noma ngaphansi kokusebenza okuphezulu okuphezulu komhlaba. Ngasikhathi sinye, zombili ithebhulethi neshubhu zingafinyelela ukujikeleza okubili, okusiza ukudutshulwa kwezingxenye ezahlukahlukene eziyinkimbinkimbi futhi kuthuthukise kakhulu ukuguquguquka kanye lula ukuma emtholampilo.
Ngamafuphi, usayizi nokugxila kumadivayisi we-DR kube nomthelela omkhulu ekusebenzeni kwemifanekiso. Izibhedlela kufanele zicabangele ngokugcwele usayizi ogxile kanye nezimpawu zobuchwepheshe lapho uthenga imishini yoDkt, bese ukhetha imishini elungele izidingo zabo ukuqinisekisa ukunemba nokwethenjwa kokuthola ukunemba nokwethenjwa.
Isikhathi Seposi: Nov-30-2024