Positronium formation in helium bubbles in 600 MeV proton-irradiated aluminium

K. O. Jensen; Morten Mostgaard Eldrup; Bachu Narain Singh

doi:10.1088/0305-4608/15/12/002

Positronium formation in helium bubbles in 600 MeV proton-irradiated aluminium

K. O. Jensen, Morten Mostgaard Eldrup, Bachu Narain Singh

Technical University of Denmark

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Aluminium samples containing helium bubbles produced by 600 MeV proton irradiation at 430°C were investigated by positron annihilation; both lifetime and angular correlation measurements were made. The angular correlation curves contain an unusually narrow component. This component is associated with positronium formation in the bubbles. The width of the component indicates localisation of the Ps atom, possibly in a surface physisorbed state. Sodium segregated at the surfaces of the bubbles is a likely cause of the positronium formation

Original language	English
Journal	Journal of Physics F (Metal Physics)
Volume	15
Issue number	12
Pages (from-to)	L287-93
ISSN	0305-4608
DOIs	https://doi.org/10.1088/0305-4608/15/12/002
Publication status	Published - 1985

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title = "Positronium formation in helium bubbles in 600 MeV proton-irradiated aluminium",

abstract = "Aluminium samples containing helium bubbles produced by 600 MeV proton irradiation at 430°C were investigated by positron annihilation; both lifetime and angular correlation measurements were made. The angular correlation curves contain an unusually narrow component. This component is associated with positronium formation in the bubbles. The width of the component indicates localisation of the Ps atom, possibly in a surface physisorbed state. Sodium segregated at the surfaces of the bubbles is a likely cause of the positronium formation",

author = "Jensen, {K. O.} and Eldrup, {Morten Mostgaard} and Singh, {Bachu Narain}",

year = "1985",

doi = "10.1088/0305-4608/15/12/002",

language = "English",

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journal = "Journal of Physics F (Metal Physics)",

issn = "0305-4608",

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T1 - Positronium formation in helium bubbles in 600 MeV proton-irradiated aluminium

AU - Jensen, K. O.

AU - Eldrup, Morten Mostgaard

AU - Singh, Bachu Narain

PY - 1985

Y1 - 1985

N2 - Aluminium samples containing helium bubbles produced by 600 MeV proton irradiation at 430°C were investigated by positron annihilation; both lifetime and angular correlation measurements were made. The angular correlation curves contain an unusually narrow component. This component is associated with positronium formation in the bubbles. The width of the component indicates localisation of the Ps atom, possibly in a surface physisorbed state. Sodium segregated at the surfaces of the bubbles is a likely cause of the positronium formation

AB - Aluminium samples containing helium bubbles produced by 600 MeV proton irradiation at 430°C were investigated by positron annihilation; both lifetime and angular correlation measurements were made. The angular correlation curves contain an unusually narrow component. This component is associated with positronium formation in the bubbles. The width of the component indicates localisation of the Ps atom, possibly in a surface physisorbed state. Sodium segregated at the surfaces of the bubbles is a likely cause of the positronium formation

U2 - 10.1088/0305-4608/15/12/002

DO - 10.1088/0305-4608/15/12/002

M3 - Journal article

SN - 0305-4608

VL - 15

SP - L287-93

JO - Journal of Physics F (Metal Physics)

JF - Journal of Physics F (Metal Physics)

IS - 12

ER -

Positronium formation in helium bubbles in 600 MeV proton-irradiated aluminium

Abstract

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