Annihilation of positronium in alpha-SiO2 investigated by combined angular correlation and lifetime measurements

被引：14

作者：

Dannefaer, S ^{[1
]}

Friessnegg, T ^{[1
]}

Kerr, D ^{[1
]}

Uedono, A ^{[1
]}

Li, XH ^{[1
]}

Tanigawa, S ^{[1
]}

机构：

[1] UNIV TSUKUBA,INST MAT SCI,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.54.15051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By combining angular correlation results of the positron annihilation quanta with lifetime results it is found that a weak but long-lived (599 +/- 10 ps) lifetime component can be correlated with the para-positronium peak in angular correlation measurements when taking into account both pickoff annihilation and conversion of positronium. Conversion has not been considered in earlier works.

引用

页码：15051 / 15055

页数：5

共 10 条

[1]

Bartenev G. M., 1972, Soviet Physics - Solid State, V14, P608

[2] POSITORNIUM STATE IN QUARTZ SINGLE CRYSTALS [J].