비의류제품

cleaning of gap surface by forming oxide film. (electron emitter fabrication)

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 489
forming an oxide film on gap crystal was found effective for removing carbon contaminants from its surface by heating in an ultra high vacuum. aes signal from the carbon on the gap surface with the oxide film disappeared by heating at 630 degreesc. the clean surface thus obtained showed clear leed patterns which were composed of the superposition of diffraction from facets of (110) and from a native surface
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