M'matavala zida zamankhwala, cholowa chathyathyathya ndi chinthu chofunikira kwambiri, ndipo machitidwe ake amakhudza mwachindunji zithunzi za zomwe zidagwidwa. Pali mitundu yambiri yamitundu yambiri yazoyang'ana palobowo pamsika, ndikusankha wotchinga yoyenera kumafunikira chisamaliro cha magawo ambiri. Chotsatirachi ndikufotokozera mwatsatanetsatane magawo asanu ndi awiri a ma dr tort a dr basen:
Kukula kwa pixel: kumaphatikizapo kuthetsa, kuthetsa dongosolo, kuthetsa zithunzi, komanso kuzindikira kwakukulu. Kusankhidwa kwa pixel kuyenera kutengera zofuna zenizeni ndipo sayenera kutsatira kukula kwakhungu kakang'ono.
Mitundu ya scrintillators: Corbous amorphillator sictillator zophimba zimaphatikizapo cesium iodide ndi gadolinium oxusyilfide. Cisium Iodides ali ndi kuthekera kwamphamvu koma mtengo waukulu, pomwe gadolinium oxysul ali ndi kuthamanga mwachangu, magwiridwe okhazikika, ndi mtengo wotsika.
DZIKO LAPANSI: Kutanthauza kuchuluka komwe wotsutsa angayeze molondola kukula kwa radiation. Zokulirapo kwambiri, njira zabwino zosiyanalirana zimatha kupezekabe ngakhale pakakhala kusiyana kwakukulu pamlingo wazogwira ntchito.
Kukhuta: Mphamvu Yochepera Yofunika Kufunikira kwa chojambula kuti mudziwe zizindikiro zotsimikizika ndi zinthu zingapo monga mayamwidwe a X-ray.
Kusintha kwa Kusintha kwa Kusintha (MTF): kumayimira kuthekera kwa kafukufuku wa kusiyanitsa zithunzi. Wokwera Mtf, zolondola fanizo lomwe lingapezeke.
Kuzindikira kwa kuchuluka kwa DQE: kufotokozedwa ngati chiwerengero cha gawo lotulutsa chizindikiro-noise kuchuluka kwa chiwerengero cholowera-noise. Pamene DQE ndiokwera, mawonekedwe ofanana amatha kupezeka ndi ochepa.
Makhalidwe ena amaphatikizapo phokoso, sigine-raise-radio yopanda phokoso, loise, nthawi, nthawi yoyankha, yomwe imatha kukumbukira.
Mukamasankha zojambula zapamwamba za Dr, zomwe zili pamwambazi ziyenera kuganiziridwa mokwanira, ndipo kusankha kuyenera kupangidwa malinga ndi zochitika ndi zofunikira zina.
Post Nthawi: Nov-30-2024