Observation of Electron-stimulated-desorption from Ionic Crystals Utilizing the Surface Channeling Technique

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  • 電子誘起脱離が起こったイオン結晶に対する表面チャネリングの観察
  • デンシ ユウキ ダツリ ガ オコッタ イオン ケッショウ ニ タイスル ヒョウメン チャネリング ノ カンサツ

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Abstract

  To understand the various surface morphology of ionic crystal that is irradiated by electrons, the surface channeling technique of ion beam is used. The energy spectra and the channeling-dips are measured by the detection of 550 keV proton beam scattered from the electron-irradiated surface of KCl(001). After the electron-irradiation, the roughness of the sample surface is observed by an Atomic force microscope. The results of these experiments are compared with the calculated results of a computer simulation. The proton beam which directed along the <100> axis penetrates into the crystal and is scattered at large angle. This result is due to the surface morphology changed by the electron-stimlated-desorption.<br>

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