Izitholi zephaneli eziyisicababaye bashintsha umkhakha wezithombe zezokwelapha ngezindlela eziningi.Lezi zinhlelo zezithombe zedijithali ziya ngokuya ziduma ngenxa yamakhono azo anokulungiswa okuphezulu kanye nekhono lokuthwebula izithombe ezinemininingwane ebingatholakali ngaphambilini.Nakuba izithungatha zephaneli eziyisicaba zivame ukusetshenziswa ezithombeni zezokwelapha zabantu, nazo zithole ukunakwa okukhulu emkhakheni wezilwane, ikakhulukazi lapho zithwebula izilwane ezincane.
Enye yezinzuzo ezinkulu zokusebenzisa umtshina oyisicaba ukuze uthwebule izilwane ezincane ikhwalithi yesithombe ethuthukisiwe.Lezi zitholi zisebenzisa iphaneli eliyisicaba elincanyana esikhundleni sefilimu ye-X-ray evamile.Lobu buchwepheshe buvumela izithombe eziwumphumela zibe nokunemba okukhulu nokucaca, okwenza kube lula kodokotela bezilwane ukuxilonga nokwelapha iziguli ngokunembile.Lapho uthwebula izilwane ezincane njengamagundane noma izinyoni, ukuthola izithombe ezicacile nezinemininingwane kubalulekile ngoba nokungajwayelekile okuncane kungabonakala.
Enye inzuzo ebalulekile yokusebenzisa umtshina oyisicaba ukuze uthwebule izilwane ezincane ukunciphisa ukuchayeka emisebeni.Izitholi zephaneli eyisicaba zidinga amazinga aphansi kakhulu emisebe ukuze zithwebule izithombe kunefilimu ye-X-ray evamile.Lokhu kubaluleke kakhulu uma usebenza nezilwane ezincane, njengoba imizimba yazo izwela kakhulu emisebeni.Ngokusebenzisa ama-flat panel detectors, odokotela bezilwane bangakhawulela ukuchayeka kwezilwane ezincane emisebeni eyingozi kuyilapho besathola izithombe zekhwalithi ephezulu ngezinjongo zokuxilonga.
Ama-flat panel detectors ahlinzeka ngokuguquguquka okukhulu lapho uthwebula izilwane ezincane.Lezi zitholi zingashintshwa kalula futhi zilungiswe ukuze zithwebule izithombe ngama-engeli ahlukene kanye nezindawo, okuvumela odokotela bezilwane ukuthi bathole umbono ophelele wokwakheka kwesilwane.Ukwengeza, izitholi zamaphaneli ayisicaba zingasetshenziselwa ukuthwebula okumile nokushintshayo, okuvumela odokotela bezilwane ukuthi bathwebule izithombe zesikhathi sangempela zezilwane ezinyakazayo.Lokhu kuwusizo ikakhulukazi lapho kuhlolwa izimo ezihlobene namalunga, imisipha, noma isimiso sokuphefumula.
Izitholi zephaneli eziyisicaba ezisetshenziselwa ukuthwebula izilwane ezincane zivame ukuza nesofthiwe ekhethekile nezici eziklanyelwe odokotela bezilwane ngokukhethekile.Lezi zici zifaka amathuluzi okuthuthukisa isithombe, amathuluzi okulinganisa, kanye nekhono lokugcina nokuhlaziya izithombe kalula.Lokhu kuvumela odokotela bezilwane ukuthi balandelele kahle futhi baqaphe ukuqhubeka kokwelashwa futhi baqhathanise izithombe ngokuhamba kwesikhathi ukuze babone noma yiziphi izinguquko noma ukuthuthukiswa.Ukuhlanganiswa kwalezi zici kwenza izitholi zamaphaneli ayisicaba zibe yithuluzi eliyigugu emitholampilo yezilwane nasezikhungweni zocwaningo.
Ama-flat panel detectors abe ubuchwepheshe obubalulekile emkhakheni wezilwane, ikakhulukazi lapho uthwebula izilwane ezincane.Ngekhwalithi yazo yesithombe ephezulu, ukunciphisa ukuchayeka emisebeni, ukuguquguquka, nezici ezikhethekile, izitholi zephaneli eyisicaba zinikeza odokotela bezilwane izinzuzo ezinkulu lapho bexilonga futhi belapha iziguli zezilwane ezincane.Njengoba ubuchwepheshe buqhubeka buthuthuka, singalindela intuthuko eyengeziwe emkhakheni wezithombe zezokwelapha, sithuthukise ngokwengeziwe ukunakekelwa kwezilwane ezincane kanye nezinketho zokwelashwa.
Imishini yokuhlola i-flat panel iguqule umkhakha wezithombe zezokwelapha ngezindlela eziningi.Lezi zinhlelo zezithombe zedijithali ziya ngokuya ziduma ngenxa yamakhono azo anokulungiswa okuphezulu kanye nekhono lokuthwebula izithombe ezinemininingwane ebingatholakali ngaphambilini.Ngenkathi izitholi zephaneli eziyisicaba zivame ukusetshenziswa ezithombeni zezokwelapha zomuntu, zikhona futhiuthole ukunakwa okukhulu emkhakheni wezilwane, ikakhulukazi lapho bethwebula izilwane ezincane.Enye yezinzuzo ezinkulu zokusebenzisa umtshina oyisicaba ukuze uthwebule izilwane ezincane ikhwalithi yesithombe ethuthukisiwe.Lezi zitholi zisebenzisa iphaneli eliyisicaba elincanyana esikhundleni sefilimu ye-X-ray evamile.Lobu buchwepheshe buvumela izithombe eziwumphumela zibe nokunemba okukhulu nokucaca, okwenza kube lula kodokotela bezilwane ukuxilonga nokwelapha iziguli ngokunembile.Lapho uthwebula izilwane ezincane njengamagundane noma izinyoni, ukuthola izithombe ezicacile nezinemininingwane kubalulekile ngoba nokungajwayelekile okuncane kungabonakala.Enye inzuzo ebalulekile yokusebenzisa umtshina oyisicaba ukuze uthwebule izilwane ezincane ukunciphisa ukuchayeka emisebeni.Izitholi zamaphaneli ayisicaba zidinga amazinga aphansi kakhulu emisebe ukuze zithwebule izithombe kunefilimu ye-X-ray evamile.Lokhu kubaluleke kakhulu uma usebenza nezilwane ezincane, njengoba imizimba yazo izwela kakhulu emisebeni.Ngokusebenzisa ama-flat panel detectors, odokotela bezilwane bangakhawulela ukuchayeka kwezilwane ezincane emisebeni eyingozi kuyilapho besathola izithombe zekhwalithi ephezulu ngezinjongo zokuxilonga.Ama-flat panel detectors ahlinzeka ngokuguquguquka okukhulu lapho uthwebula izilwane ezincane.Lezi zitholi zingashintshwa kalula futhi zilungiswe ukuze zithwebule izithombe ezihlukeneama-engeli nezindawo, okuvumela odokotela bezilwane ukuthi bathole umbono obanzi wokwakheka kwesilwane.Ukwengeza, izitholi zamaphaneli ayisicaba zingasetshenziselwa ukuthwebula okumile nokushintshayo, okuvumela odokotela bezilwane ukuthi bathwebule izithombe zesikhathi sangempela zezilwane ezinyakazayo.Lokhu kuwusizo ikakhulukazi lapho kuhlolwa izimo ezihlobene namalunga, imisipha, noma isimiso sokuphefumula.Izitholi zephaneli eziyisicaba ezisetshenziselwa ukuthwebula izilwane ezincane zivame ukuza nesofthiwe ekhethekile nezici eziklanyelwe odokotela bezilwane ngokukhethekile.Lezi zici zifaka amathuluzi okuthuthukisa isithombe, amathuluzi okulinganisa, kanye nekhono lokugcina nokuhlaziya izithombe kalula.Lokhu kuvumela odokotela bezilwane ukuthi balandelele kahle futhi baqaphe ukuqhubeka kokwelashwa futhi baqhathanise izithombe ngokuhamba kwesikhathi ukuze babone noma yiziphi izinguquko noma ukuthuthukiswa.Ukuhlanganiswa kwalezi zici kwenza izitholi zamaphaneli ayisicaba zibe yithuluzi eliyigugu emitholampilo yezilwane nasezikhungweni zocwaningo.Ama-flat panel detectors abe ubuchwepheshe obubalulekile emkhakheni wezilwane, ikakhulukazi lapho uthwebula izilwane ezincane.Ngekhwalithi yazo yesithombe ephezulu, ukuchayeka emisebeni okuncishisiwe, ukuguquguquka, nezici ezikhethekile, isicabaImishini yokuhlola amaphaneli inikeza odokotela bezilwane izinzuzo ezinkulu lapho bexilonga futhi belapha iziguli zezilwane ezincane.Njengoba ubuchwepheshe buqhubeka buthuthuka, singalindela intuthuko eyengeziwe emkhakheni wezithombe zezokwelapha, sithuthukise ngokwengeziwe ukunakekelwa kwezilwane ezincane kanye nezinketho zokwelashwa.
Isikhathi sokuthumela: Jul-05-2023