Tus thawj daim ntawv ntawm lub tshuab ntsuas hluav taws xob, lub tshuab xa hluav taws xob xa hluav taws xob (TEM), siv lub teeb hluav taws xob hluav taws xob hluav taws xob siab los teeb pom cov qauv thiab tsim cov duab. Cov kab hluav taws xob yog tsim los ntawm rab phom electron, feem ntau haum nrog tungsten filament cathode raws li cov khoom siv hluav taws xob.
Lub hauv paus ntsiab lus ntawm electron microscopy yog dab tsi?
Txoj cai ntawm electron microscopy
Electrons yog cov khoom me me uas, zoo li photons hauv lub teeb, lawv ua raws li nthwv dej. Ib kab hluav taws xob hla dhau ntawm cov qauv, tom qab ntawd los ntawm ntau lub lo ntsiab muag uas nthuav cov duab. Cov duab tshwm sim los ntawm kev tawg ntawm electrons los ntawm atoms hauv cov qauv.
txhais li cas los ntawm electron micrographs?
noun. daim duab lossis duab ntawm cov qauv coj los siv lub tshuab tsom iav electron.
Lub hauv paus ntawm kev teeb pom kev hauv electron microscope yog dab tsi?
Nyob rau hauv kis tau tus mob electron microscope (TEM), lub hauv paus ntawm illumination yog ib tug nqaj ntawm electrons ntawm luv luv wavelength, emissions los ntawm ib tug tungsten filament nyob rau sab saum toj ntawm ib cylindrical kem ntawm txog 2 m siab. Tag nrho cov tshuab kho qhov muag ntawm lub tshuab tsom iav yog kaw hauv lub tshuab nqus tsev.
Yuav ua li cas electron microscope magnify?
Electron microscopes siv cov khoom siv subatomic hu ua electrons los nthuav cov khoom. … Qhov no ua rau cov tshuab hluav taws xob tshuab hluav taws xob muaj zog dua li lub teeb microscopes. Lub teeb microscope tuaj yeem nthuav dav txog 2000x, tab sis lub tshuab hluav taws xob hluav taws xob tuaj yeem ua taumagnify nruab nrab ntawm 1 txog 50 lab zaug nyob ntawm seb koj siv hom twg!
