Characterization of helium bubble size and faceting by electron holography | Zendy

E. Snoeck | Zendy; Jérôme Majimel | Zendy; M.-O. Ruault | Zendy; Martin Hÿtch | Zendy

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Characterization of helium bubble size and faceting by electron holography

Author(s) -

E. Snoeck,

Jérôme Majimel,

M.-O. Ruault,

Martin Hÿtch

Publication year - 2006

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.2216791

Subject(s) - electron holography , faceting , holography , bubble , helium , materials science , electron , optics , transmission electron microscopy , electron diffraction , electron microscope , liquid helium , nanotechnology , physics , atomic physics , condensed matter physics , diffraction , nuclear physics , mechanics

Iron-9% chromium alloy of controlled purity and microstructure was helium implanted and studied using transmission electron microscopy and electron holography (EH). Fresnel imaging is compared with electron holography for a set of identical helium bubbles of size 2–4 nm. Electron holography reveals that the bubbles are, in fact, faceted and the lateral and projected dimensions of the cavities are measured. Current measurements allow the detection of 1 nm diameter bubbles using EH. The merits of conventional and holographic techniques are discussed and future improvements anticipated. Electron holography seems to be the ideal technique for investigating the morphology of helium bubbles and cavities in general

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