Cov raj xa duab X-ray rau kev lag luam yog cov khoom tseem ceeb hauv kev sim tsis ua puas tsuaj (NDT) thiab cov txheej txheem tshuaj xyuas, uas siv dav hauv kev lag luam xws li aerospace, automotive, thiab kev tsim khoom. Lawv lub luag haujlwm tseem ceeb yog tsim cov duab X-ray uas muaj peev xwm nkag mus rau hauv cov khoom, yog li ntawd nrhiav tau cov qhov tsis zoo sab hauv, kev ua haujlwm zoo, thiab cov khoom sib xyaw. Rau cov kws tshaj lij hauv daim teb no, nkag siab txog cov no li casCov raj xa duab X-raykev ua haujlwm thiab lawv qhov cuam tshuam rau qhov tseeb ntawm kev tshuaj xyuas yog qhov tseem ceeb heev.
Lub hauv paus ntsiab lus ntawm cov raj xa hluav taws xob X-ray hauv kev lag luam yogkev tso pa tawm thermionic, qhov twg cov electrons raug tso tawm los ntawm lub cathode uas kub thiab nrawm mus rau qhov anode. Thaum cov electrons muaj zog siab no sib tsoo nrog cov khoom siv anode, X-rays raug tsim tawm. Qhov zoo thiab cov yam ntxwv ntawm cov X-rays tsim tawm nyob ntawm ntau yam, suav nrog kev tsim qauv ntawm lub raj X-ray, cov ntaub ntawv siv, thiab cov xwm txheej ua haujlwm.
Ib qho ntawm cov yam tseem ceeb uas cuam tshuam rau qhov tseeb ntawm kev tshuaj xyuas yogtheem zogntawm cov duab X-ray uas tsim tawm. Cov duab X-ray muaj zog heev tuaj yeem nkag mus rau hauv cov khoom tuab dua, ua rau lawv tsim nyog rau kev tshuaj xyuas cov khoom tuab dua. Ntawm qhov tod tes, cov duab X-ray uas muaj zog tsawg dua yog qhov tsim nyog dua rau kev tshuaj xyuas cov qhov tsis zoo ntawm cov khoom nyias dua. Los ntawm kev kho qhov tso zis hluav taws xob ntawm lub raj X-ray, cov neeg tshuaj xyuas tuaj yeem hloov kho txoj kev tshuaj xyuas kom haum rau cov kev xav tau tshwj xeeb ntawm txoj haujlwm, yog li txhim kho qhov tseeb ntawm kev tshuaj xyuas.
Lwm yam uas cuam tshuam rau qhov no yogqhov loj ntawm qhov tseem ceebntawm lub raj xa duab X-ray. Qhov loj me ntawm lub focal me dua yuav ua rau muaj cov duab zoo dua, uas yog qhov tseem ceeb rau kev txheeb xyuas cov teeb meem me me. Ntawm qhov tod tes, qhov loj ntawm lub focal loj dua yuav ua rau poob cov ntsiab lus, ua rau cov teeb meem tsis pom. Yog li ntawd, kev xaiv lub raj xa duab X-ray nrog qhov loj me ntawm lub focal tsim nyog yog qhov tseem ceeb rau kev tau txais cov txiaj ntsig zoo tshaj plaws.
Qhov geometry ntawm lub raj X-ray kuj tseem ceeb heev rau kev kuaj xyuas qhov tseeb. Lub kaum sab xis ntawm cov duab X-ray cuam tshuam rau qhov zoo ntawm daim duab. Piv txwv li, lub raj X-ray uas hloov tau lub kaum sab xis tuaj yeem npog tau cov geometries nyuaj dua, ua kom muaj kev kuaj xyuas tag nrho ntawm cov khoom. Qhov kev ywj pheej no yog qhov tseem ceeb tshwj xeeb hauv cov lag luam uas muaj cov qauv tsim khoom nyuaj lossis qhov chaw ua haujlwm tsawg.
Tsis tas li ntawd xwb, qhov ruaj khov thiab sib xws ntawm cov zis X-ray yog qhov tseem ceeb rau kev tshuaj xyuas kom ntseeg tau. Kev hloov pauv ntawm qhov muaj zog X-ray tuaj yeem ua rau muaj kev hloov pauv ntawm qhov zoo ntawm daim duab, yog li cuam tshuam rau lub peev xwm los nrhiav qhov tsis zoo. Cov raj X-ray niaj hnub no tau tsim los nrog cov thev naus laus zis siab heev kom ntseeg tau tias cov zis ruaj khov, yog li txhim kho qhov rov ua dua thiab kev ntseeg tau ntawm cov txiaj ntsig tshuaj xyuas.
Tsis tas li ntawm cov yam ntxwv ntawm lub raj xa duab X-ray, kev sib koom ua ke ntawm cov tshuab thaij duab digital ua rau kev tshuaj xyuas raug dua. Cov cuab yeej ntes digital ntes tau cov duab siab thiab muab cov lus teb tam sim ntawd, ua rau cov neeg tshuaj xyuas tuaj yeem ua qhov kev ntsuam xyuas tam sim ntawd. Kev sib koom ua ke no tsis yog tsuas yog ua kom kev tshuaj xyuas sai dua xwb tab sis kuj tseem txhim kho qhov tseeb ntawm kev txheeb xyuas qhov tsis zoo thiab kev tshuaj xyuas.
Hauv kev xaus lus, cov raj xa duab X-ray hauv kev lag luam yog cov khoom tseem ceeb rau kev ua tiav qhov tseeb siab hauv kev sim tsis ua puas tsuaj. Lawv cov hauv paus ntsiab lus ua haujlwm, suav nrog cov theem zog, qhov loj ntawm qhov chaw tsom, geometry, thiab qhov ruaj khov ntawm cov zis, cuam tshuam ncaj qha rau qhov zoo ntawm cov txiaj ntsig sim. Nrog rau kev nce qib thev naus laus zis tas mus li, kev ua tau zoo ntawmCov raj xa duab X-ray yuav txuas ntxiv txhim kho, txhim kho lawv lub luag haujlwm hauv kev ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov khoom tseem ceeb thoob plaws ntau yam lag luam. Kev nkag siab txog cov yam ntxwv no yog qhov tseem ceeb rau cov kws tshaj lij uas xav ua kom zoo dua lawv cov txheej txheem kuaj thiab tswj hwm cov qauv tswj hwm zoo tshaj plaws.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-01-2025