Video: Phosphorimager ua haujlwm li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Photostimulated luminescence (PSL) yog qhov tso tawm ntawm lub zog khaws cia hauv phosphor los ntawm kev txhawb nqa nrog lub teeb pom kev, tsim lub teeb liab luminescent. Lub phaj raws li cov txheej txheem no yog hu ua photostimulable phosphor (PSP) phaj thiab yog ib hom X-ray detector siv nyob rau hauv projectional radiography.
Ib yam li ntawd, nws tau nug, CR nyeem ntawv yog dab tsi?
A CR system muaj cov duab nyeem ntawv /digitizer, cassettes uas muaj cov duab receptors (photostimulable-phosphor daim hlau), lub computer console lossis workstation, software, saib, thiab lub tshuab luam ntawv. Cov duab thaij duab tau muab tso rau hauv lub rooj teeb duab hluav taws xob lub thawv ntawv thiab cov duab tau txais los ntawm kev siv x-ray.
Tsis tas li ntawd, cia phosphor yog dab tsi? Zog khaws cia phosphor yog cov ntaub ntawv uas ib qho irradiation induces ionization ntawm ib co ions ua raws li los ntawm kev ntes cov rho tawm electrons los ntawm qhov chaw ua hauj lwm, tsim xim chaw, los yog oxidizing cations.
Tsis tas li ntawd, dab tsi yog qhov tseem ceeb hauv cov duab hluav taws xob digital?
Cov puv factor yog qhov feem pua ntawm ib cheeb tsam pixel uas yog rhiab rau cov duab teeb liab - yog nws tus nqi hluav taws xob lossis lub teeb photons. Nws tsis tuaj yeem yog 100%, muab qhov yuav tsum tau ua kom haum cov neeg siv hluav taws xob (~ 10 Μm dav) uas nkag mus hloov cov teeb liab thiab cov duab tso tawm, nrog rau cov yeeb yaj kiab nyias nyias hauv txhua pixel.
Dr VS CR yog dab tsi?
CR yog lub npe luv rau Computed Radiography. Nws yog kev siv Phosphor Imaging Phaj los tsim cov duab digital uas yog tus CR txheej txheem. Digital Radiography, DR nyob rau hauv luv luv yog qhov tseeb technology nyob rau hauv radiography. Cov DR thev naus laus zis hloov pauv cov duab mus rau lub computer.
Pom zoo:
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