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Principles and applications of selective solar coatings

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
146 KB
Volume
26
Category
Article
ISSN
0042-207X

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✦ Synopsis

Classified abstracts 1472-l 483 23. PLUMBING, VACUUM VALVES, BAFFLES AND TRAPS 23 1472. A vacuum lock for introducing solid samples into a vacuum vessel under uhv-conditions. (Germany) A robust simple three-stage vacuum lock is described. This lock allows to introduce solid samples of 20 x 10 x IO mm size into a vacuum vessel that has been pumped down to IO-lo mbar. After introducing the sample a pressure of 10-s mbar is achieved within 1 min and a pressure of a few IO-'IX mbar within I h without baking. The vacuum lock is compatible with the usual sample treating facilities, e.g. warming-up, cooling, glow discharge cleaning, ionic etching etc.

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