チャネリング後方散乱実験用超高真空装置
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概要
- 論文の詳細を見る
An apparatus which consists of a pulse-motor-driven goniometer, a U.H.V. chamber and oil free vacuum pumps has been successfully developed for channeling experiments in an ultra-high vacuum. The goniometer has three axis rotating mechanism of 0.005°/pulse and a movable sample holder which allows several samples to be replaced in a vacuum.<BR>The whole system can be remotely operated at a pressure of 2.8×10<SUP>-8</SUP> Torr. Slight out-gassing of those with mass number 36, 39, 41, 43, 57 and 77 from organic insulators of the goniometer are detected with a mass spectrometer. The amount of these gases, however, has been found not to be so large as to cause detectable surface contaminations during channeling backscattering measurements.
- 日本真空協会の論文