An electron energy loss spectrometer based streak camera for time resolved TEM measurements.

Autor: Ali H; Electron Microscopy and Nano-Engineering, Applied Materials Science, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, Sweden., Eriksson J; Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden., Li H; Electron Microscopy and Nano-Engineering, Applied Materials Science, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, Sweden., Jafri SHM; Electron Microscopy and Nano-Engineering, Applied Materials Science, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, Sweden., Kumar MSS; Electron Microscopy and Nano-Engineering, Applied Materials Science, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, Sweden., Ögren J; Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden., Ziemann V; Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden., Leifer K; Electron Microscopy and Nano-Engineering, Applied Materials Science, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, Sweden. Electronic address: Klaus.Leifer@angstrom.uu.se.
Jazyk: angličtina
Zdroj: Ultramicroscopy [Ultramicroscopy] 2017 May; Vol. 176, pp. 5-10. Date of Electronic Publication: 2016 Dec 11.
DOI: 10.1016/j.ultramic.2016.11.026
Abstrakt: We propose an experimental setup based on a streak camera approach inside an energy filter to measure time resolved properties of materials in the transmission electron microscope (TEM). In order to put in place the streak camera, a beam sweeper was built inside an energy filter. After exciting the TEM sample, the beam is swept across the CCD camera of the filter. We describe different parts of the setup at the example of a magnetic measurement. This setup is capable to acquire time resolved diffraction patterns, electron energy loss spectra (EELS) and images with total streaking times in the range between 100ns and 10μs.
(Copyright © 2016 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: