X-ray tubesyog ib feem tseem ceeb ntawm cov duab hluav taws xob thiab ua lub luag haujlwm tseem ceeb hauv kev tsim X-rays siv hauv kev kho mob duab. Kev nkag siab txog cov ntsiab lus tseem ceeb thiab kev ua haujlwm ntawm X-ray raj yog qhov tseem ceeb rau cov kws tshaj lij hluav taws xob thiab cov kws kho mob koom nrog hauv kev kuaj pom. Tsab ntawv xov xwm no yuav muab kev saib xyuas qhov tob ntawm cov khoom tseem ceeb thiab kev ua haujlwm ntawm X-ray raj hauv cov duab hluav taws xob, qhia txog lawv qhov tseem ceeb hauv kev kuaj mob.
Cov khoom tseem ceeb ntawm X-ray tube:
1. Cathode: Lub cathode yog ib qho tseem ceeb ntawm lub X-ray raj thiab yog lub luag hauj lwm rau emitting electrons. Nws muaj ib lub filament thiab lub khob tsom. Thaum siv hluav taws xob siab, lub filament heats li, ua rau nws tso tawm electrons. Lub khob tsom iav pab coj cov electrons mus rau lub anode.
2. Anode: Lub anode yog lwm qhov tseem ceeb ntawm X-ray raj. Nws feem ntau yog ua los ntawm tungsten vim nws qhov siab melting point. Thaum electrons los ntawm cathode ntaus lub anode, X-rays yog tsim los ntawm cov txheej txheem ntawm Bremsstrahlung. Lub anode kuj ua hauj lwm rau dissipate lub tshav kub generated thaum lub sij hawm tus txheej txheem.
3. Iav enclosure: X-ray raj yog ntsia rau hauv ib lub khob ntim, uas muaj lub tshuab nqus tsev vacuum los tiv thaiv hluav taws xob tawg thiab pab txhawb kev tsim X-rays.
Kev ua haujlwm ntawm X-ray raj hauv radiography:
1. Tsim X-rays: Lub luag haujlwm tseem ceeb ntawm X-ray raj yog tsim cov X-rays los ntawm kev kub ceev electron cuam tshuam ntawm cathode thiab anode. Cov txheej txheem no tsim X-rays uas siv los ua duab ntau yam ntawm tib neeg lub cev.
2. Thaum tshav kub kub dissipation: Thaum electrons ntaus lub anode, ib tug loj npaum li cas ntawm tshav kub yog generated. Lub anode yog tsim los tig sai sai rau dissipate tshav kub thiab tiv thaiv kev puas tsuaj rau X-ray raj.
3. Kev tswj cov khoom siv hluav taws xob xoo hluav taws xob: X-ray raj tau nruab nrog kev tswj kom kho qhov cuam tshuam xws li kilovolts (kV) thiab milliampere vib nas this (mAs). Cov kev tswj hwm no tso cai rau cov kws tshaj lij hluav taws xob los kho X-ray tso zis raws li txhua tus neeg mob cov kev xav tau tshwj xeeb.
4. Kev tsom xam loj: Qhov loj ntawm qhov tsom xam anode plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov kev daws teeb meem ntawm X-ray duab. Cov ntsiab lus me me ua rau cov duab daws teeb meem siab dua, yog li kev tswj thiab tswj kom pom qhov loj me yog qhov tseem ceeb rau kev pom kev zoo.
5. Tube Housing thiab Collimation: Lub raj X-ray yog nyob rau hauv ib qho kev tiv thaiv vaj tse uas muaj cov collimator kom kaw lub X-ray beam mus rau thaj tsam ntawm kev txaus siab thiab txo qis cov hluav taws xob tsis tsim nyog rau tus neeg mob.
Hauv cov ntsiab lus,X-ray tubesyog ib feem tseem ceeb ntawm thaj chaw ntawm radiology imaging, thiab nkag siab txog lawv cov ntsiab lus tseem ceeb thiab kev ua haujlwm yog qhov tseem ceeb rau cov kws kho mob koom nrog hauv kev kuaj mob. Los ntawm kev nkag siab txog cov haujlwm ntawm cathodes, anodes, thiab lwm yam khoom siv nrog rau kev ua haujlwm koom nrog hauv X-ray tiam thiab tswj, cov kws tshaj lij hluav taws xob tuaj yeem ua kom muaj kev nyab xeeb thiab siv tau zoo ntawm X-ray raj rau kev kuaj mob kom raug. Qhov kev paub no thaum kawg ua rau muaj txiaj ntsig zoo rau kev saib xyuas cov neeg mob zoo thiab kev nce qib ntawm kev kho mob cov cuab yeej siv tshuab.
Post lub sij hawm: Aug-05-2024