Optimization of Monochromated TEM for Ultimate Resolution Imaging and Ultrahigh Resolution Electron Energy Loss Spectroscopy
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ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Electron Microscopy
Imaging and Characterization Core Lab
KAUST Solar Center (KSC)
Date
2017-09-01Online Publication Date
2017-09-01Print Publication Date
2018-01Permanent link to this record
http://hdl.handle.net/10754/625753
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The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).Citation
Lopatin S, Cheng B, Liu W-T, Tsai M-L, He J-H, et al. (2018) Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy. Ultramicroscopy 184: 109–115. Available: http://dx.doi.org/10.1016/j.ultramic.2017.08.016.Sponsors
Authors would like to thank Dr. Peter C Tiemeijer from FEI Co for fruitful comments and discussions regarding the monochromator operation and optimization. Also we would like to acknowledge Dmitry Melnikau for providing a sample of Ag nanowires.Publisher
Elsevier BVJournal
UltramicroscopyPubMed ID
28886488Additional Links
http://www.sciencedirect.com/science/article/pii/S0304399117302073ae974a485f413a2113503eed53cd6c53
10.1016/j.ultramic.2017.08.016
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