Preparation of Small Vanadium Particles by the Gas Evaporation Technique

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 146 KB
• Volume: 26
• Category: Article
• ISSN: 0042-207X
• DOI: 10.1016/s0042-207x(76)81084-6

✦ Synopsis

Preparation of ultrathin, helium-tight, unbacked, unsealed metal windows for gas discharge lamps. (GB) A method is described for the preparation of a large unbacked, ultrathin metal window covering a hole in a disc. The metal adheres directly to the disc forming a helium-tight partition. An aluminium window with a thickness of 0. I ~,m and 6 mm across was strong enough to withstand a pressure difference of 80 Torr. These windows are suitable, for example, for transmitting shortwave ov radiation from a helium discharge lamp. (Netherlands)