Title of article :
Spontaneous emission of positronium negative ions from polycrystalline tungsten surfaces
Author/Authors :
Yasuyuki Nagashima، نويسنده , , Toshihide Hakodate، نويسنده , , Takahiko Sakai، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
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.
Keywords :
Positronium negative ion , Work function , Tungsten
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
