Cov thev naus laus zis X-ray tau dhau los ua ib qho cuab yeej tseem ceeb hauv kev lag luam kev ruaj ntseg. Cov tshuab X-ray kev ruaj ntseg muab ib txoj hauv kev tsis cuam tshuam los nrhiav cov khoom zais lossis cov khoom phom sij hauv cov hnab nqa khoom, pob khoom thiab cov thawv. Hauv plawv ntawm lub tshuab X-ray kev ruaj ntseg yog lub raj xa hluav taws xob, uas tsim cov hluav taws xob x-rays siab siv hauv kev luam theej duab.
Cov raj xa duab X-raysiv rau ntau yam kev siv hauv kev thaij duab hluav taws xob, kev thaij duab kho mob, kev tshawb fawb txog cov ntaub ntawv, thiab kev tshuaj xyuas kev lag luam. Txawm li cas los xij, hauv kev lag luam kev ruaj ntseg, cov raj X-ray ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb rau pej xeem, tiv thaiv kev ua phem thiab txhim kho kev ruaj ntseg.
An Lub raj xa duab xoo hluav taws xobyog ib lub cuab yeej hluav taws xob uas hloov lub zog hluav taws xob mus ua cov duab X-rays muaj zog heev rau kev thaij duab. Lub raj muaj ib lub cathode thiab ib lub anode uas kaw rau hauv lub chamber nqus tsev. Thaum tam sim no hla lub cathode, nws tso tawm cov kwj deg ntawm cov electrons, uas raug nrawm mus rau lub anode. Cov electrons sib tsoo nrog lub anode, tsim cov X-rays uas raug taw qhia rau qhov khoom uas raug tshuaj xyuas.
Cov tshuab X-ray kev nyab xeeb siv ob hom raj X-ray: cov raj hlau ceramic (MC) thiabCov raj xa dej anode (RA) uas tig tau. MC raj feem ntau siv vim nws pheej yig, ruaj khov thiab txhim khu kev qha. Nws tsim cov teeb X-ray ruaj khov, qis zog zoo tagnrho rau kev thaij duab cov khoom ntawm cov khoom siv qis-density. Ntawm qhov tod tes, RA raj muaj zog dua li MC raj thiab tsim cov teeb X-ray siab dua. Haum rau kev luam theej duab cov khoom nrog cov khoom siv siab-density xws li hlau.
Kev ua haujlwm ntawm lub raj xa duab X-ray hauv lub tshuab X-ray kev nyab xeeb raug cuam tshuam los ntawm ntau yam, suav nrog lub zog hluav taws xob ntawm lub raj, lub zog hluav taws xob ntawm lub raj, thiab lub sijhawm raug. Lub zog hluav taws xob ntawm lub raj txiav txim siab lub zog ntawm cov duab X-ray uas tsim tawm, thaum lub zog hluav taws xob ntawm lub raj tswj hwm qhov ntau ntawm cov duab X-ray uas tsim tawm ib lub sijhawm. Lub sijhawm raug txiav txim siab lub sijhawm ntawm cov duab X-ray uas tsom mus rau yam khoom uas raug tshuaj xyuas.
Qee lub tshuab X-ray kev ruaj ntseg siv cov thev naus laus zis duab X-ray ob lub zog, uas siv ob lub raj X-ray nrog cov qib zog sib txawv. Ib lub raj tsim cov X-rays qis zog, thaum lwm lub tsim cov X-rays siab zog. Cov duab tshwm sim qhia cov xim sib txawv uas qhia txog qhov ceev thiab tus lej atomic ntawm txhua yam khoom hauv daim duab scanned. Cov thev naus laus zis tso cai rau cov neeg teb xov tooj kom paub qhov txawv ntawm cov khoom organic thiab inorganic, txhim kho kev nrhiav pom cov khoom zais.
Hauv kev xaus lus, cov raj X-ray yog lub hauv paus ntawm lub tshuab X-ray kev ruaj ntseg, pab txheeb xyuas cov khoom zais, cov khoom tawg, thiab cov khoom phom sij. Lawv muab txoj hauv kev ceev, ua haujlwm tau zoo thiab tsis cuam tshuam rau kev luam theej cov khoom, pob khoom thiab cov thawv. Yog tsis muaj cov raj X-ray, kev tshuaj xyuas kev ruaj ntseg yuav yog ib qho txheej txheem nyuaj thiab siv sijhawm ntau, ua rau kev tswj hwm kev nyab xeeb rau pej xeem thiab tiv thaiv kev ua phem nyuaj. Yog li ntawd, kev txhim kho cov thev naus laus zis raj X-ray tseem ceeb rau yav tom ntej ntawm cov tshuab X-ray kev ruaj ntseg.
Lub sijhawm tshaj tawm: Lub Peb Hlis-15-2023