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Energy Dispersive X-ray Tomography for 3D Elemental Mapping of Individual Nanoparticles
Published on: July 5, 2016
Time-resolved acquisition technique for spatially-resolved electron energy-loss spectroscopy by energy-filtering TEM
Shohei Terada1, Takashi Aoyama, Fumiko Yano
1Hitachi Research Laboratory, Hitachi Limited, 7-1-1 Omika, Hitachi, Ibaraki 319-1292, Japan. sterada@hrl.hitachi.co.jp
Abstract:
A time-resolved acquisition technique has been investigated for spatially-resolved electron energy-loss spectroscopy by energy-fitering transmission electron microscopy. Plural (10) spectral images were acquired separately at an energy (E) and a position (Y) coordinate. After correction of both specimen and energy drifts by comparing with the original starting spectrum, the 10 spectral images were added to form a new processed spectral image. This time-resolved acquisition technique was found to improve the signal-to-noise ratio to about the square root of ten for 200 s total exposure time without increasing the image blurring problem.
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