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Dokumenttyp:
Zeitschriftenartikel / Journal Article
Titel:
Lifetime Measurements with a Pulsed Slow Positron Beam
Zeitschrift:
Physica Status Solidi (A) Applications and Materials Science
Jahrgang:
102
Heftnummer:
2
Jahr:
1987
Seiten von - bis:
549-554
Sprache:
Englisch
Abstract:
The lifetimes of positrons annihilating in solids at the surface or close to the surface are measured by a pulsed positron beam of variable energy. A time resolution of 240 ps FWHM at a coincidence count rate of 70 s−1 is obtained. For stainless steel and nickel the lifetime associated to the annihilation in surface states is of the order of 500 ps. The lifetimes for the annihilation in trapping centers close to the surface are in complete agreement with the lifetimes observed in conventional li... »
ISSN:
1521-396X
Fakultät:
Fakultät für Luft- und Raumfahrttechnik
Institut:
LRT 2 - Institut für angewandte Physik und Messtechnik
Professur:
Dollinger, Günther
Open Access ja oder nein?:
Nein / No
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