Ukwakheka okuyisisekelo kanye nomgomo osebenzayo womtshina wephaneli

I-Flat Panel Detector iyithuluzi eliyisihluthulelo emkhakheni wezithombe zanamuhla zezokwelapha, ezingaguqula amandla ama-X-rays abe amasiginali kagesi futhi akhiqize izithombe zedijithali zokuxilongwa. Ngokwezinto zokwakha ezahlukahlukene kanye nemigomo esebenzayo, abatholi bephaneli abasesicaba bahlukaniswe ngezinhlobo ezimbili: Amorphous Selenium Flat Panel Detoctors kanye ne-Amorphok Silico Flat Panel Detoctors.

I-Amorphous Selenium Flat Panel Detector

I-Amorphous Selenium Flat Panel Detector amukela indlela eqondile yokuguqulwa, futhi izingxenye zalo eziyisisekelo zifaka i-matrix ye-Collector, ungqimba lwe-selenium, ungqimba lwe-dielectric, i-electrode ephezulu, kanye nongqimba oluphezulu. I-Collector Matrix yakhiwa ama-transistors amancanyana amafilimu (ama-TFTs) ahlelwe ngendlela efanayo yento, ebhekele ukuthola nokugcina amasiginali kagesi aguqulwe ungqimba lweSelenium. Isendlalelo se-selenium yi-amondoduk semiconductor izinto ezikhiqiza ifilimu elincanyana elilingana nobukhulu obungu-0.5mm ngokuhwamuka kwe-vacuum. Kuyazwela kakhulu ama-x-ray futhi inamakhono aphezulu wesithombe.

Lapho ama-x-ray enzeka ngesigameko, insimu kagesi eyenziwe ngokuxhuma i-electrode ephezulu kumandla aphezulu we-voltage amandla okudlula ungqimba olukule nkundla kagesi bese ufinyelela ungqimba lwe-amorphous Selenium. Isendlalelo se-Amorphous Selenium ngqo siguqula ama-X-rays abe amasiginali kagesi, agcinwe kwi-capacitor yesitoreji. Kamuva, isifunda sesango sokulawulwa kwe-Pulse siphendukela ekuthatheni amafilimu amancanyana, silethe icala eligciniwe ekuphumeni kwe-amplifier yenkokhiso, ukuqeda ukuguqulwa kwesiginali ye-photoelectric. Ngemuva kokuguqulwa okwengeziwe yisiguquli sedijithali, kwakhiwa isithombe sedijithali futhi sifaka kwikhompyutha, bese sibuyisela isithombe ekuhlolweni kokuxilongwa okuqondile kodokotela.

I-Amorphok Silicon Flat Panel Detector

I-Amorphous Silicon Flat Panel Detector amukela indlela yokuguqula engaqondile, futhi isakhiwo sayo esiyisisekelo kufaka phakathi isendlalelo sezinto ze-scintillator, umjikelezo we-amorphon kaSilicoode, kanye nesifunda sokufunda. Izinto ze-Scintillation, ezinjenge-cesium iodide noma i-gadinium oxysulfide, zitholakala ebusweni bomtshina futhi zibhekele ukuguqula imisebe ye-X-ye-X-edlula emzimbeni womuntu. I-Amorphous Silicon Photodiode Array ngaphansi kwe-scintillator iguqula ukukhanya okubonakalayo ibe amasiginali kagesi, kanye nenkokhiso egciniwe ye-pixel ngayinye ilingana nokuqina kwesigameko x-ray.

Ngaphansi kwesenzo sesifunda sokulawula, izindleko ezigciniwe ze-pixel ngayinye ziskenwa futhi zifundelwe, nangemva kokuguqulwa kwe-A / D, kudluliselwe kwikhompyutha ukuthola izithombe ze-X-ray.

Ngamafuphi, kunomehluko ekwakhiweni nasekusebenzeni okusebenzayo phakathi kwe-amorphous Selenium kanye ne-Amorphon Silico Flat Panel Detoctors, kepha bobabili bangaguqula ama-X-ray kuzimpawu zikagesi, bakhiqize izithombe ezisezingeni eliphakeme, futhi zinikeze ukusekelwa okuqinile kokuxilongwa kwemicabango yezokwelapha.

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