Ib Daim Ntawv Qhia Tag Nrho Los Xaiv Txoj Cai Lead Apron
Thaum nws los txog rau kev tiv thaiv hluav taws xob, cov tshuaj tiv thaiv instinctive feem ntau nrhiav kev tiv thaiv ntau tshaj plaws. Txawm li cas los, nyob rau hauv lub ntiaj teb no ntawmX-ray tiv thaiv, qhov kev xav tias qhov sib npaug ntawm cov hlau lead ntau dua tuaj yeem ua kom muaj kev nyab xeeb zoo dua yog qhov kev xav tsis zoo. Thaum cov hlau lead sib npaug yog qhov tseem ceeb tshaj plaws, xaiv txoj cai txhuas apron yuav tsum ntsuas qhov pom kev pom hluav taws xob attenuation nrog ergonomic kev nplij siab thiab kev siv tshuaj kho mob.
Nkag siab Lead Equivalent
Txhawm rau txiav txim siab paub, nws yog ib qho tseem ceeb kom nkag siab qhov "sib npaug sib npaug" txhais tau li cas. Lead sib npaug yog tus qauv metric siv los ntsuas qhov kev tiv thaiv kev ua haujlwm ntawmCov ntaub ntawv tiv thaiv hluav taws xob. Nws sawv cev rau cov tuab ntawm cov hlau lead ntshiab (nrog qhov ntom ntawm 11.34 g / cm³) yuav tsum tau ua kom tiav tib theem ntawm X-ray attenuation raws li cov khoom tshwj xeeb raug kuaj. Piv txwv li, 0.5 mmPb apron muab tib yam hluav taws xob tiv thaiv raws li 0.5 hli tuab daim ntawv ntawm cov hlau lead ntshiab.
Kev lag luam- tawm: Kev Tiv Thaiv vs. Qhov hnyav
Txawm hais tias qhov sib npaug ntawm cov hlau lead ntau dua muaj kev nqus hluav taws xob ntau dua, nws los nrog tus nqi tseem ceeb ntawm lub cev. Lead yog cov hlau ntom, thiab ua kom cov hlau lead sib npaug ncaj qha nce qhov hnyav ntawm lub apron. Rau cov kws kho mob uas yuav tsum tau hnav cov iav no rau ntau teev thaum cov txheej txheem cuam tshuam, qhov hnyav ntxiv no txhais ua rau mob musculoskeletal hnyav. Heaver aprons ua kom qaug zog, ua rau muaj kev pheej hmoo ntawm mob nraub qaum thiab caj dab ntev, thiab tuaj yeem cuam tshuam tus kws kho mob lub hom phiaj thiab kev ua haujlwm zoo thaum ua haujlwm tseem ceeb. Yog li ntawd, qhov muag tsis pom kev xaiv rau qhov sib npaug siab tshaj plaws tuaj yeem ua rau tsis pom kev ua haujlwm tshiab.
Sib piv kev tiv thaiv rau kev kho mob xav tau
Qhov zoo tshaj plaws txhuas sib npaug tsis yog qhov siab tshaj plaws thoob ntiaj teb tab sis yog qhov sib tw meej rau qhov chaw kho mob tshwj xeeb thiab hom hluav taws xob cuam tshuam. Qhov yuav tsum tau muaj kev tiv thaiv qib yog nyob ntawm X-ray raj voltage (kVp) thiab cov hluav taws xob tawg nyob hauv chav. Piv txwv li, tus qauv kuaj X- cov kab hluav taws xob feem ntau xav tau qhov tsawg kawg nkaus ntawm 1 mmPb rau kev tiv thaiv theem nrab, thaum cov kev cuam tshuam cov hlab plawv nrog cov qib siab zog yuav xav tau0.5 mmPb lossis 0.75 mmPb tiv thaiv tus kheej. Xaiv lub apron nrog 1.0 mmPb sib npaug rau qhov qis - cov txheej txheem kuaj mob muaj qhov tsis txaus ntseeg ntxiv kev nyab xeeb thaum ua rau tus neeg hnav lub cev hnyav.
Kev nce qib hauv Material Technology
Hmoov zoo, kev lag luam tab tom mus dhau ib txwm muaj cov hmoov lead ntshiab. Niaj hnub nimno composite thiab tsis tshua muaj - cov ntaub ntawv hauv ntiaj teb tau hloov pauv cov qauv siv lead ua apron. Cov khoom siv qib siab no siv cov khoom siv siab- cov hlau ntom ntom xws li tungsten, bismuth, thiab antimony kom ua tiav cov hlau lead zoo ib yam li cov hlau lead aprons tab sis ntawm ib feem ntawm qhov hnyav. Qhov kev siv thev naus laus zis no tso cai rau cov kws kho mob kom muaj kev nyab xeeb hluav taws xob zoo yam tsis muaj kev cuam tshuam ergonomic kev nplij siab, ua rau muaj kev cuam tshuam ncaj qha ntawm kev tiv thaiv siab thiab hnyav hnyav.
Xaus: Nrhiav Qhov Zoo Tshaj Plaws
Thaum kawg, qhov sib npaug ntawm cov hlau lead ntau dua tsis yog ib txwm zoo dua; nws tsuas yog txawv. Lub hom phiaj ntawmtiv thaiv hluav taws xobyog ua kom tiav ALARA (Raws Li Tsawg Raws Li Tsim Nyog Tau Txais) txoj cai, uas siv rau ob qho tib si hluav taws xob raug thiab lub cev hnyav. Kev xaiv cov hlau lead apron txoj cai suav nrog kev ntsuam xyuas cov teeb meem hluav taws xob tshwj xeeb ntawm koj qhov chaw ua haujlwm, xaiv cov hlau lead uas tsim nyog uas ua tau raws li cov qauv kev tswj hwm yam tsis muaj ntau tshaj qhov xav tau, thiab saib xyuas cov khoom siv niaj hnub, hnav. Los ntawm kev tsom mus rau qhov kev sib npaug no, cov chaw kho mob tuaj yeem ua kom muaj kev nyab xeeb hauv chaw kho mob thiab lub sijhawm ntev - lub cev zoo - yog ntawm lawv cov neeg ua haujlwm.