KVp sawv cev rau dab tsi hauv hluav taws xob?
KVp sawv cev rau dab tsi hauv hluav taws xob?

Video: KVp sawv cev rau dab tsi hauv hluav taws xob?

Video: KVp sawv cev rau dab tsi hauv hluav taws xob?
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Dr Francis Deng thiab Dr Ayush Goel et al. Kilovoltage ncov ( kVp ua ) yog lub ncov muaj peev xwm siv rau lub x-ray raj, uas accelerates electrons ntawm lub cathode mus rau lub anode nyob rau hauv radiography los yog xam tomography. Tube voltage, nyob rau hauv lem, txiav txim qhov ntau thiab zoo ntawm cov photons generated.

Ntxiv mus, kVp hauv hluav taws xob yog dab tsi?

Ncej kilovoltage ( kVp ua ) hais txog qhov siab tshaj qhov hluav taws xob siv thoob plaws ib qho X-ray raj thaum tsim cov x-rays hauv nws. kVp ua tswj cov cuab yeej hu ua "radiographic contrast" ntawm ib qho x-ray duab (qhov piv ntawm cov hluav taws xob kis tau los ntawm cov cheeb tsam ntawm qhov sib txawv thickness los yog ntom).

Tsis tas li ntawd, kVp cuam tshuam li cas rau cov duab zoo? nyhuv ntawm mAs thiab kVp ua ntawm daws teeb meem thiab ntawm duab sib piv. Tus thawj xyaum ua tej yam pom tias, thaum cov zaj duab xis ceev cia tsis tu ncua, ntau dua qhov lub kVp ua , qhov qis dua daws teeb meem thiab duab qhov sib piv feem pua; kuj, qhov siab dua qhov mAs, qhov siab dua daws teeb meem thiab duab qhov sib piv feem pua.

Ib yam li ntawd, koj tuaj yeem nug, Ma nyob rau hauv hluav taws xob yog dab tsi?

Milliamperage ( mav ) yog ib qho tseem ceeb hauv kev txiav txim siab kom muaj nuj nqis ntawm x-rays tsim thiab yog, yog li ntawd, ib qho kev qhia zoo ntawm hom kev ntsuam xyuas uas tuaj yeem ua nrog lub tshuab. Qhov m A-s Factor (lub sij hawm × milliamperes) cuam tshuam rau zaj duab xis ntom ntom los ntawm kev tswj hwm tus nqi ntawm X-ray photons uas ncav cuag cov yeeb yaj kiab emulsion.

kVp ua dab tsi los sib piv?

Radiation quality los yog kVp ua : nws muaj txiaj ntsig zoo rau kev kawm sib piv . Ib qho qis kVp ua yuav ua rau x-ray beam tsawg nkag. Qhov no yuav ua rau muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov kev kawm, ua rau siab dua sib piv . Ib siab dua kVp ua yuav ua rau lub x-ray beam nkag mus.

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