Scientists at NASA leaping into nanospace

May/16/2017
TESCAN FEG UHR SEM MAIA used for characterisation of nanoparticles
Scientists of the Glenn Research Center at NASA in Ohio have just acquired a TESCAN MAIA3, a scanning electron microscope (SEM) equipped with the Triglav™ ultra-high resolution (UHR) SEM column. The researchers will use the TESCAN MAIA3 microscope to analyse porous nanoscale structures of aerogels in clear detail. Aerogels are a class of lightweight materials typically made from silica and alumina with a sponge-like structure with pores of 10 to 50 nm wide. The outstanding resolution of 1 nm at 1 keV and variable pressure capabilities are key features to image (at low kV) and characterise pores in aerogels and also nano-sized particles without damaging the samples.

Laura Evans, electron optics lead at NASA’s Glenn Research Center’s analytical science group, loads a sample into Glenn’s new TESCAN MAIA3 microscope.
Laura Evans, electron optics lead at NASA’s Glenn Research Center’s analytical science group, loads a sample into Glenn’s new TESCAN MAIA3 microscope.

Original source


Documents for download

Triglav™ UHR column
Charging of non-conductive materials, observation of very thin layers or surface at high magnification, damaging of sensitive samples – these are the problems which many scientists are faced when using scanning electron microscopy (SEM). High-resolution imaging, particularly at low accelerating voltages, has always been of great importance in a wide variety of fields, from technology and engineering to biology and scientific research. To satisfy the growing demands on low-voltage imaging while keeping outstanding resolution, TESCAN has developed the ultra-high resolution (UHR) Triglav™ SEM column equipped with the TriLens™ objective and an advanced detection system.
pdf – 2.1 MB

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