Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm electron microscopy?
Qhov zoo:
1, kev daws teeb meem siab, qhov kev daws teeb meem ntawm lub tshuab ntsuas qhov muag yog 0.2μm, qhov kev daws teeb meem ntawm kev xa hluav taws xob hluav taws xob yog 0.2nm, uas yog hais tias, kev xa hluav taws xob hluav taws xob hauv lub tshuab hluav taws xob kho qhov muag ntawm lub hauv paus ntawm magnification ntawm 1000 zaug.
2, kis tau tus mob electron microscope feem ntau yog siv los soj ntsuam cov neeg uas muaj cov tshuab microscopes tsis tuaj yeem paub qhov txawv ntawm cov qauv zoo ntawm cov khoom; scanning electron microscope yog tsuas yog siv los soj ntsuam cov morphology ntawm cov khoom siv, tab sis kuj nrog X-ray diffractometer los yog electron spectrometer ua ke, tsim cov electron microprobe, siv rau kev tsom xam ntawm cov khoom muaj pes tsawg leeg; emission electron microscope rau kev kawm ntawm qhov chaw ntawm tus kheej-emission ntawm electrons.
Qhov tsis zoo:
1, nyob rau hauv cov qauv electron microscope yuav tsum tau soj ntsuam nyob rau hauv lub tshuab nqus tsev vacuum, yog li nws tsis tuaj yeem soj ntsuam cov qauv nyob. Nrog rau kev nce qib ntawm thev naus laus zis, ib puag ncig scanning electron microscopy yuav maj mam ua tiav kev soj ntsuam ntawm cov qauv nyob;
2, Kev ua haujlwm ntawm cov qauv tuaj yeem tsim cov qauv uas tsis muaj nyob hauv cov qauv, uas ua rau qhov nyuaj ntawm kev tshuaj xyuas cov duab tom qab ntawd;
3, vim muaj zog heev electron tawg peev xwm, nquag mus rau theem nrab diffraction thiab hais txog;
4, vim yog ob-seem dav hlau projection duab ntawm cov khoom peb-dimensional, qee zaum cov duab tsis txawv;
5, vim hais tias qhov kis tau tus mob electron microscope tsuas tuaj yeem soj ntsuam cov qauv nyias nyias, thiab nws muaj peev xwm hais tias cov qauv ntawm cov khoom sib txawv ntawm cov qauv sab hauv ntawm cov khoom;
6, cov qauv ultra-nyias (hauv qab 100 nm), cov txheej txheem kev npaj ua qauv yog qhov nyuaj thiab nyuaj, thiab muaj kev puas tsuaj rau cov qauv kev npaj;
7, lub teeb hluav taws xob tuaj yeem ua rau cov qauv ua kom puas los ntawm kev sib tsoo thiab cua sov;
8, nyob rau hauv tas li ntawd mus rau lub electron microscope muas thiab txij nkawm ntawm tus nqi yog kuj siab.
