Kusiyana pakatizithunzi intensifiersndiflat panel zowunikira.M'munda wakujambula kwachipatala, X-ray imagwira ntchito yofunika kwambiri pozindikira ndi kuchiza matenda ndi zovulala zosiyanasiyana.Kupita patsogolo kwaukadaulo kwapangitsa kuti pakhale zida zamakono zojambulira zithunzi za X-ray.Zatsopano ziwiri zotere ndi zokulitsa zithunzi ndi zowunikira ma flat panel.Ngakhale kuti zonsezi zinapangidwa kuti ziwongolere zithunzi za X-ray, pali kusiyana kwakukulu pakati pa matekinoloje awiriwa.
Kuti timvetse kusiyana kwake, tiyeni tiyambe ndi zowonjezera zithunzi.Zowonjezera pazithunzi ndi zida za electro-optical zomwe zimagwiritsidwa ntchito kwambiri pankhani ya radiology.Ntchito yawo yayikulu ndikuwongolera zithunzi za X-ray, kuzipangitsa kuti ziwoneke bwino komanso zatsatanetsatane.Mfundo yogwiritsiridwa ntchito kwa chithunzicho intensifier ndikusintha ma X-ray photon kukhala ma photon owoneka bwino, kukulitsa kukula kwa chithunzi choyambirira cha X-ray.
Chigawo chachikulu cha chowonjezera chithunzicho ndi phosphor yolowetsa, yomwe imatenga ma X-ray photons ndi kutulutsa ma photons owoneka.Ma photon awa amafulumizitsidwa ndikuyang'ana pa phosphor yotulutsa, ndikupanga chithunzi chokulirapo.Chithunzi chokulitsidwachi chitha kujambulidwa ndi kamera kapena kuwonetseredwa pa chowunikira kuti chizizindikira.Zowonjezera zithunzi ndizothandiza kwambiri popereka zithunzi zenizeni ndipo ndi zabwino kwa njira zomwe zimafuna kujambula nthawi yeniyeni, monga fluoroscopy.
Ma Flat panel detectors (FPDs) akhala m'malo mowonjezera zithunzi.Zowunikira za Flat panel ndi zida zolimba zomwe zimajambula mwachindunji zithunzi za X-ray ndikuzisintha kukhala ma digito.Mosiyana ndi zokulitsa zithunzi, ma FPD sadalira kusintha ma X-ray photon kukhala ma photon owoneka bwino.Anagwiritsa ntchito makina otchedwa thin-film transistors (TFTs) kuti asinthe zithunzi za X-ray kukhala zizindikiro zamagetsi.
Ubwino waukulu wa zowunikira zowoneka bwino ndikutha kujambula zithunzi zadijito zowoneka bwino komanso zowoneka bwino komanso zosinthika.Zizindikiro za digitozi zimatha kusinthidwa mwachindunji ndikuwonetsedwa pakompyuta kuti zifufuzidwe mwachangu.Zowunikira zowoneka bwino zimaperekanso mawonekedwe okulirapo komanso magwiridwe antchito apamwamba (DQE) poyerekeza ndi zokulitsa zithunzi, zomwe zimapangitsa kuti chithunzicho chikhale bwino.
Zowunikira ma Flat panel zimapereka zabwino zambiri pakusinthasintha komanso kusinthasintha.Atha kuphatikizidwa mosavuta m'makina a X-ray omwe alipo kale, m'malo mwa zowonjezera zachikhalidwe popanda kusintha kwakukulu.
Kusiyana pakatiX-ray chithunzi intensifiersndi zowunikira zapansi panthaka zili muukadaulo wawo komanso magwiridwe antchito.Zowonjezera zithunzi zimakulitsa zithunzi za X-ray posintha zithunzi za X-ray kukhala mafotoni owoneka bwino, pomwe zowunikira zowoneka bwino zimajambula zithunzi za X-ray ndikuzisintha kukhala ma siginecha a digito.Njira zonsezi zili ndi ubwino ndi zovuta zake, ndipo kusankha pakati pawo kumadalira zofunikira za kujambula, kulingalira mtengo, ndi mlingo wa khalidwe lachithunzi lofunika.Ma intensifiers azithunzi zonse ndi zowunikira pansi zimathandizira kupititsa patsogolo gawo la kujambula kwa X-ray ndikuwongolera chisamaliro cha odwala.
Nthawi yotumiza: Sep-13-2023