電解研磨法および乾式切削法によるアルミニウム合金製箱形真空容器の真空特性
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概要
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Two aluminum alloy chambers designed to hold the magnets and electrodes of a pulse beam stretcher were manufactured. The inner surface of one chamber was treated with electropolishing. The inner surface of the other chamber was treated with machining in a dry atmosphere.<BR>The electropolished chamber contained hydrate at the surface and showed a high outgassing rate of 1×10<SUP>-9</SUP> Pa·m<SUP>3</SUP>/ (s·m<SUP>2</SUP>) after a 150°C, 24-hour bakeout. The chamber machined in the dry atmospher contained less hydrate at the surface than the electropolished chamber did and showed a low outgassing rate of 1.5×10<SUP>-10</SUP> Pa·m<SUP>3</SUP>/ (s·m<SUP>2</SUP>) after a 150°C, 24-hour bakeout.
- 日本真空協会の論文
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