journal article·2008-10

Spontaneous emission of positronium negative ions from polycrystalline tungsten surfaces

Yasuyuki Nagashima, Toshihide Hakodate, Takahiko Sakai

Applied Surface Science· Volume 255· Issue 1
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Abstract

Recently, the spontaneous emission of positronium negative ions from polycrystalline tungsten surfaces was observed. In the present work, the emission of these ions in ultra-high vacuum has been studied and the long-term stability of the emission efficiency has been investigated.
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Research context

OpenAlex topics: Muon and positron interactions and applications · Atomic and Molecular Physics · Graphene research and applications

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