Positron annihilation in lead
The Doppler-broadening of the radiation from positrons annihilating in lead has been measured over the temperature range 4·2-600 K. The creation of mono-vacancies at the higher temperatures has been studied. On the basis of several hypotheses, including positron self-trapping and divacancy productio...
Gespeichert in:
| Veröffentlicht in: | Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties Physics of condensed matter. Defects and mechanical properties, 1978-11, Vol.38 (5), p.543-558 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The Doppler-broadening of the radiation from positrons annihilating in lead has been measured over the temperature range 4·2-600 K. The creation of mono-vacancies at the higher temperatures has been studied. On the basis of several hypotheses, including positron self-trapping and divacancy production, values of the monovacancy formation enthalpy have been estimated. The trapping of positrons by defects introduced by compression of the lead at 77 K has been investigated : complete annealing occurs before 300 K. |
|---|---|
| ISSN: | 0141-8610 1460-6992 |
| DOI: | 10.1080/01418617808239253 |