Video: Dab tsi yog ib nrab thickness ntawm txhuas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
4.2mm ib
Dhau li ntawm no, HVL ntawm txhuas yog dab tsi?
PENETRATION VALUES
| Khoom siv | HVL (mm) | |
|---|---|---|
| 30 kwv | 60 kwv | |
| Cov ntaub so ntswg | 20.0 | 35.0 |
| Aluminium | 2.3 | 9.3 |
| Coj | 0.02 | 0.13 |
Ib tug kuj yuav nug, dab tsi yog ib nrab thickness txoj kev? Ib cov ntaub ntawv ib nrab - tus nqi txheej (HVL), lub ib nrab - tus nqi tuab , yog tuab ntawm cov khoom uas qhov kev siv ntawm hluav taws xob nkag mus rau nws yog txo los ntawm ib tug ib nrab . Lub quarter- tus nqi txheej yog sib npaug rau cov lej ntawm thawj thiab thib ob ib nrab - tus nqi txheej.
Dhau li ntawd, koj ua li cas xam ib nrab thickness?
Cov ib nrab - tus nqi txheej txheem HVL = = 0.693/Μ. Muab koj cov lus teb los ntawm 10 los qhia koj HVL hauv millimeters. Qhov no yog qhov tsim nyog vim tias muaj ntau cov coefficients attenuation tau muab nrog cov units cm-1, thiab qee qhov HVL tau qhia hauv mm. Koj cov lus teb kuj tuaj yeem muab faib ua 0.39 los hloov cov centimeters rau ntiv tes.
Ntev npaum li cas yuav tsum ua rau thaiv hluav taws xob?
Cov ntaub thaiv npog yuav tsum yog li 13.8 feet ntawm dej, txog 6.6 feet ntawm pob zeb, lossis txog 1.3 feet ntawm coj . tuab , ntom thaiv yog tsim nyog tiv thaiv tiv thaiv gamma rays. Qhov siab dua lub zog ntawm gamma ray, lub tuab dua daim thaiv yuav tsum ua. X-rays ua rau muaj kev sib tw zoo sib xws.
Pom zoo:
Qhov feem pua ntawm txhuas hauv alcl3 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus Element Symbol Mass Percent Aluminium Al 20.235% Chlorine Cl 79.765%
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Lub teb chaws qhov ntsuas kub yog 2.91 ° C (5.24 ° F) saum toj no 1961-1990 qhov nruab nrab, tawg cov ntaub ntawv yav dhau los tau teev tseg hauv 2013 los ntawm 0.99 ° C (1.78 ° F)
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
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Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
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