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Vacuum Coating Systems- Denton Vacuum |
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Microscopy- Sample Preparation |
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Materials to be viewed under an electron microscope may require
processing to produce a suitable sample. The technique required varies
depending on the specimen and the analysis required: Conductive Coating - An ultra-thin coating of electrically-conducting material, deposited either by high vacuum evaporation or by low vacuum sputter coating of the sample. This is done to prevent the accumulation of static electric fields at the specimen due to the electron irradiation required during imaging. Such coatings include gold, gold/palladium, platinum, tungsten, graphite etc. and are especially important for the study of specimens with the scanning electron microscope. Another reason for coating, even when there is more than enough conductivity, is to improve contrast, a situation more common with the operation of a FESEM (field emission SEM). Denton has a three different systems for use with microscopy and sample preparation. The Denton Explorer®, Bench Top Turbo IV (BTT-IV) and
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 The
Explorer® series represents Denton's workhorse for
R&D Vacuum Coating. The Explorer® system can be adapted to different
size vacuum chambers and is very configurable for custom applications.
The Explorer® can be used for either thermal evaporation, vacuum
sputtering or e-beam evaporation.
System options include:
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 The
Bench Top Turbo IV (BTT-IV) is Denton’s table-top high vacuum sample
preparation system. A large 12“ x 12“ Bell Jar and 15” diameter
stainless steel baseplate, with 12 available feedthroughs, enhance
flexibility of the system by permitting installation of the multiple
evaporation sources.The Bench Top Turbo IV (BTT-IV) is equipped with a color touch screen for easy operation. It is economical but built to satisfy demanding reseachers. Bench Top Turbo IV Product Literature
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 The
Denton Desk IV series is designed for microscopy and sample
preparatation vacuum coatings.The
Desk IV is available in a simple mechanically pumped configuration for
sputtering of noble metals or carbon evaporation. The turbo pumped model
is available for ultra fine grain sample preparation. For larger
samples, Denton offers the Desk IV XLS. The Desk Iv has a color
touchscreen for easy operation.All systems include a gold or gold/palladium target (customer choice). Rotation, Tilt and Rotation and a Film Thickness Monitor are offered as optional accessories for all models.
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