Lub zog daws teeb meem ntawm electron microscope yog dab tsi?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Hluav taws xob beams yog siv nyob rau hauv electron microscope kom illuminate cov qauv thiab yog li tsim ib daim duab. Vim lub wavelength ntawm f electrons yog 100,000 lub sij hawm luv dua li pom lub teeb electron microscopes muaj ntau dua daws lub zog . Lawv tuaj yeem ua tiav ib daws teeb meem ntawm 0.2nm thiab magnifications mus txog 2,000,000 x.

Yog li ntawd, vim li cas thiaj li electron microscope muaj lub zog daws teeb meem ntau dua?

Raws li lub wavelength ntawm ib hluav taws xob tuaj yeem ncav cuag 100, 000 lub sij hawm luv dua li qhov pom pom photons, electron microscopes muaj lub zog daws teeb meem ntau dua tshaj qhov kaj microscopes thiab tuaj yeem nthuav tawm cov qauv ntawm cov khoom me me.

Ib tug kuj yuav nug, dab tsi yog qhov kev daws teeb meem siab tshaj plaws ntawm lub tshuab ntsuas hluav taws xob? Cov daws teeb meem txwv ntawm electron microscopes yog 0,2nm siab kawg muaj txiaj ntsig magnification ib electron microscope tuaj yeem muab yog li 1,000,000x.

Hais txog qhov no, dab tsi yog electron microscope thiab nws siv rau dab tsi?

Electron microscopy (EM) yog cov txheej txheem kom tau txais cov duab daws teeb meem siab ntawm cov kab mob lom thiab tsis yog lom. Nws yog siv Hauv kev tshawb fawb biomedical los tshawb xyuas cov qauv nthuav dav ntawm cov ntaub so ntswg, hlwb, organelles thiab macromolecular complexes.

Yog vim li cas magnification tseem ceeb?

Ib unit magnification feem ntau siv nyob rau hauv microscopes thiab telescopes yog txoj kab uas hla, lub magnification nyob rau hauv diameters yog sib npaug rau cov sij hawm qhov linear qhov ntev ntawm cov khoom yog nce. Nws yog nquag li tseem ceeb los txiav txim qhov loj ntawm daim duab raws li nws yog los txiav txim nws qhov chaw.