1 Million Volt High Voltage Electron Microscope

A 1 MV high voltage electron microscope has been constructed, employing a divided type Cockcroft circuit as the high voltage generating system, the accelerating tube being of the 14 stage type. The accelerating tube consists of a triode type electron gun, two aperture and a number of cylindrical len...

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Bibliographic Details
Published in:Journal of electron microscopy 1968, Vol.17 (4), p.289-300
Main Authors: WATANABE, Masaru, HINAGA, Yasushi, YAMAMOTO, Makoto, NAKAMORA, Osamu, SOMEYA, Teruo, GOTO, Takabumi, KONNO, Katsuo, YANAKA, Takashi, TAKAHASHI, Noboru
Format: Article
Language:English
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Summary:A 1 MV high voltage electron microscope has been constructed, employing a divided type Cockcroft circuit as the high voltage generating system, the accelerating tube being of the 14 stage type. The accelerating tube consists of a triode type electron gun, two aperture and a number of cylindrical lenses. In order to facilitate application of high voltage to the accelerating tube, the conditioning technique has been employed. The microscope column consists of a double condenser lens and a 4-stage image forming lens system in which the elimination of beam deflecting fields has been taken into account. A 4.5Å (lattice image) has been resolved.
ISSN:0022-0744
1477-9986
DOI:10.1093/oxfordjournals.jmicro.a049623