X-ray tubesyog cov cuab yeej tseem ceeb siv nyob rau hauv ntau qhov chaw kho mob thiab kev lag luam. Paub txog cov hauv paus ntawm nws ua haujlwm li cas, nrog rau nws qhov zoo thiab qhov tsis zoo, yog qhov tseem ceeb thaum txiav txim siab seb cov tshuab zoo li cas rau koj.
Hauv plawv ntawm ibX-ray tubeyog ob lub ntsiab tseem ceeb: ib qhov chaw ntawm electrons (lub cathode) thiab lub hom phiaj uas absorbs cov electrons (lub anode). Thaum hluav taws xob dhau los ntawm lub cuab yeej, nws ua rau cathode emit zog nyob rau hauv daim ntawv ntawm X-rays. Cov X-rays no ces dhau los ntawm cov ntaub so ntswg los yog khoom thiab absorbed los ntawm anode, tsim ib daim duab los yog duab ntawm zaj duab xis.
Ib qho txiaj ntsig tseem ceeb ntawm kev siv X-rays dua lwm cov kev yees duab yog tias lawv tuaj yeem nkag mus rau cov ntaub ntawv tuab yam tsis muaj kev cuam tshuam ntau dua li lwm hom hluav taws xob, xws li ultrasound lossis magnetic resonance imaging (MRI). Qhov no ua rau lawv zoo tagnrho rau kev saib cov ntaub ntawv tuab, xws li cov pob txha lossis cov khoom hlau, hauv cov txheej txheem kho mob uas qhov tseeb yog qhov tseem ceeb. Tsis tas li ntawd, lawv kuj pheej yig dua piv rau MRI scanners thiab lwm yam khoom siv duab, ua rau lawv muaj txiaj ntsig zoo rau cov lag luam thiab cov neeg siv hauv tsev.
Ntawm qhov downside, txawm li cas los xij, X-rays tsim hluav taws xob, uas tuaj yeem tsim kev puas tsuaj yog tias tsis ua haujlwm zoo; Yog li ntawd, cov txheej txheem kev nyab xeeb nruj yuav tsum tau ua raws li thaum siv cov txheej txheem zoo li no. Tsis tas li ntawd, vim lawv lub zog nkag mus, lawv yuav tsis muab cov duab ntxaws tshwj tsis yog tshwj xeeb calibrated rau ib daim ntawv thov tshwj xeeb - yog li vim li cas ntau txoj kev tshuaj ntsuam xyuas zoo li MRI qee zaum nyiam dua li cov tshuab X-ray.
Hauv cov ntsiab lus, txawm hais tias muaj qee qhov kev poob qis rau kev siv cov raj X-ray nyob ntawm koj daim ntawv thov, lawv tseem yuav tsim nyog txiav txim siab muab lawv cov peev txheej thiab muaj peev xwm los muab cov txiaj ntsig raug sai thaum lawv xav tau tshaj plaws. Txawm hais tias koj tab tom nrhiav txoj hauv kev tshiab txhawm rau kuaj kab mob sai sai hauv tsev lossis xav siv nws hauv koj qhov chaw lag luam - nkag siab tias cov cuab yeej no ua haujlwm li cas tuaj yeem pab xyuas kom koj tau txais yam koj xav tau los ntawm lawv!
Post lub sij hawm: Feb-28-2023