Remolding of Field Emission Cathodes

DOI Web Site 1 Citations
  • NAKAMURA Shogo
    The Institute of Scientific and Industrial Research, Osaka University
  • KURODA Tsukasa
    The Institute of Scientific and Industrial Research, Osaka University

Bibliographic Information

Other Title
  • 電界放出陰極のRemolding
  • デンカイ ホウシュツ インキョク ノ Remolding

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Description

Investigations were made on the effect of polarization on the surface migration of metal atoms which is induced by a thermal-field during remolding.<br> Experimental results show that the end-form of the thermal-field build-up of a crystal plane on tungsten and rhenium emitters is determined by the anisotropic feature of the free energy of the surface, which in turn is influenced by the adsorption of gases and the polariza-tion of surface metal atoms caused by the remolding field.<br> Discussions are given on possible causes of the thermal-field build-up of the (001) crystal plane on a tungsten emitter exposed to CO2 or O2 gases of about 10-7 Torr.<br> The remolding conditions that provide highly narrow angular confinement of field electrons from <013> and <001> oriented tungsten emitters are also described.

Journal

  • Oyo Buturi

    Oyo Buturi 42 (10), 975-982, 1973

    The Japan Society of Applied Physics

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