Dab tsi yog lub teeb ci tseem ceeb hauv hluav taws xob?
Dab tsi yog lub teeb ci tseem ceeb hauv hluav taws xob?

Video: Dab tsi yog lub teeb ci tseem ceeb hauv hluav taws xob?

Video: Dab tsi yog lub teeb ci tseem ceeb hauv hluav taws xob?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
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Thawj Hluav taws xob

Thawj Beam : Qhov no yog hais txog lub x-ray beam ua ntej muaj kev cuam tshuam nrog tus neeg mob, kab sib chaws, rooj lossis duab intensifier. Tawm Beam : Cov nqaj uas cuam tshuam nrog tus ntes yog hu ua qhov tawm nqaj thiab yuav tau txais txiaj ntsig zoo heev

Ntawm no, lub ntsiab nqaj yog dab tsi?

Thawj Beam : Kab rov tav nqaj txuas kab (tsuas yog txhawb los yog shear txuas.) Muaj nuj nqi: Nws yuav hloov lub load los ntawm theem nrab nqaj (yog tias muaj) rau cov kab. Secondary Beam : Kab rov tav nqaj kev sib txuas thawj kab teeb (tsuas yog txhawb los yog shear txuas.)

Kuj Paub, dab tsi yog thawj thiab theem nrab hluav taws xob? Kev faib tshuaj yog nyob ntawm qhov thawj hluav taws xob , originating los ntawm lub hom phiaj los yog qhov chaw, thiab cov theem nrab tawg tawg hluav taws xob tshwm sim los ntawm attenuation ntawm lub thawj hluav taws xob . Nyob rau tib lub sijhawm, cov tawg hluav taws xob los ntawm cov cheeb tsam no yog faib mus rau hauv nruab nrab ntawm lub nqaj.

Hais txog qhov no, dab tsi yog collimation hauv radiology?

A collimator yog ib qho hlau thaiv nrog lub aperture hauv nruab nrab siv los txo qhov loj thiab cov duab ntawm lub X-ray beam, li no kuj txo qhov ntim ntawm irradiated cov ntaub so ntswg nyob rau hauv tus neeg mob. Lim thiab kev sib cav ntawm X-ray beam yog qhov tseem ceeb ntawm kev nyab xeeb.

Dab tsi yog qhov hluav taws xob tawg?

Tshaj tawm hluav taws xob yog hom thib ob hluav taws xob uas tshwm sim thaum lub nqaj cuam tshuam ib yam khoom, ua rau X-rays tawg tawg.

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