Kusukela kwasungulwa, amashubhu we-X-ray wezokwelapha adlale indima ebalulekile ekuguqukeni kokucabanga kokucabanga. Lawa mashubhu ayingxenye ebalulekile yemishini ye-X-ray evumela odokotela ukuthi babone ngaphakathi kweziguli futhi bahlonze izimo ezahlukahlukene zokwelashwa. Ukuqonda ukusebenzela kwangaphakathi kwamashubhu we-X-ray wezokwelapha kungathuthukisa ukuqonda kwethu intuthuko yezobuchwepheshe ecindezela ukucabanga kokuxilonga kokuphakama okusha.
Umnyombo weI-X-ray tube yezokwelaphaInezingxenye ezimbili eziyinhloko: I-CouthOdo ne-anode, esebenza ndawonye ukukhiqiza ugongolo lwe-X-ray. I-cathode isebenza njengomthombo wama-elektroni ngenkathi i-anode isebenza njengelitshe lalawa ma-elektroni. Lapho amandla kagesi esetshenziswa ku-tube, i-cathode ikhipha ukusakazwa kwama-elektroni, okugxile futhi kusheshiswe ku-anode.
I-cathode iyisihlungi esifudumele, esivame ukwenziwa nge-tungsten, ekhipha ama-elektroni ngenqubo ebizwa ngokuthi yi-thermionic emion. I-Electric Electric yamanje ishisa i-filament, okwenza ama-elektroni aphunyuke ebusweni bayo futhi athole ifu lezinhlayiya ezikhokhiswe kabi. Indebe egxile ebhekwe nge-nickel bese yakha ifu lama-elektroni libe ugongolo oluncanyana.
Ngakolunye uhlangothi lwe-tube, i-anode isebenza njengelitshe lama-elektroni akhishwe yi-cathode. I-anode ivame ukwenziwa nge-tungsten noma ezinye izinto eziphakeme ze-athomu ze-atomic ngenxa yendawo yayo ephezulu yokuncibilika kanye nekhono layo lokubekezelela ukushisa okukhulu okwenziwe ngebhomu le-elektroni. Lapho ama-elektroni aphezulu ashayisana ne-anode, anciphisa ijubane, akhulula amandla ngendlela ye-X-ray photons.
Enye yezinto ezibucayi kakhulu e-X-ray Tube Design yikhono lokuqeda inani elikhulu lokushisa elenziwe ngesikhathi sokusebenza. Ukufeza lokhu, i-X-ray tube ifakwe uhlelo lokupholisa oluyinkimbinkimbi ukuvimba ukugcwala ngokweqile nokuwohloka kwe-anode. Lezi zinhlelo zokupholisa zivame ukubandakanya ukusakazwa kwamafutha noma amanzi azungeze i-anode, ukumunca ngempumelelo nokuqeda ukushisa.
I-X-ray Beam ekhishwa yi-tube iphinde yakhiwe futhi iqondiswe yi-collokators, elawula ubukhulu, ubukhulu kanye nokwakheka kwenkambu ye-x-ray. Lokhu kuvumela odokotela ukuthi bagxile ku-x-ray ngokunembile ezindaweni ezithakazelayo, bakhawulela ukuvezwa kwemisebe engadingekile ezigulini.
Ukuthuthukiswa kwamashubhu we-X-ray wezokwelapha aguqule ukucabanga kokuxilongwa ngokunikeza odokotela ithuluzi elingahlaseli libone ngeso lengqondo izinhlaka zomzimba wangaphakathi. Ama-X-ray afakazele imali ebaluleke kakhulu ekutholeni ukuphazamiseka kwamathambo, ukukhomba amathumba kanye nokuphenya izifo ezahlukahlukene. Ngaphezu kwalokho, ubuchwepheshe be-X-ray buvele ukuthi bafake i-tomography ephoqelelwe (CT), i-fluoroscopy, kanye ne-mammography, futhi kwandise amakhono ayo okuxilonga.
Naphezu kwezinzuzo eziningi zamashubhu we-X-ray, izingozi ezingaba khona ezihambisana nokuvezwa kwemisebe kumele zivunywe. Ochwepheshe bezokwelapha baqeqeshelwe ukulinganisa izinzuzo ze-X-ray imaging nge ukulimala okungaba khona kwemisebe eyeqile. Amaphrothokholi okuphepha aqinile kanye nokuqapha umthamo kwemisebe kuqinisekisa ukuthi iziguli zithola imininingwane edingekayo yokuxilonga ngenkathi kunciphisa ukuvezwa kwemisebe.
Ngokufigqiwe,Amashubhu we-X-raybaguqule ukucabanga kokuxilongwa ngokuvumela odokotela ukuhlola ukusebenza kwangaphakathi komzimba womuntu ngaphandle kwezinqubo ezihlaselayo. Idizayini eyinkimbinkimbi ye-X-ray tube nge-cathode yayo, uhlelo lwe-anode kanye nohlelo lokupholisa lukhiqiza izithombe ezisezingeni eliphakeme le-x-ray ukusiza ekutholakaleni okunembile. Njengoba ubuchwepheshe buqhubeka buqhubekisela phambili, singalindela ukuthuthuka okwengeziwe ku-X-ray imaging ukuze uzuze zombili iziguli kanye nabaqeqeshiwe bezempilo.
Isikhathi sePosi: Aug-28-2023