Defect Range and Evolution in Swift Xe-Ion Irradiated Pure Silver Studied by Positron Annihilation Technique

• Authors: J. Dryzek , P. Horodek , V. Skuratov
• Languages of publication: EN

Abstracts

EN

Variable energy positron beam and positron lifetime spectroscopy were used to study pure silver samples exposed to irradiation with swift Xe²⁶⁺ ions of energy 167 MeV with different dose: of 10¹³, 5×10¹³ and 10¹⁴ ions/cm². The positron lifetime spectroscopy revealed the presence of dislocations or vacancies associated with dislocations. They are distributed at the depth of about 6 μm, and this correlates with the ion implantation range, i.e. 9 μm. However, some defects are observed also to a depth of about 18 μm. At the depth less than 1 μm from the entrance surface strong dependence of positron diffusion length on the dose is observed. It indicates the presence of interstitial atoms and/or dislocation loops as a result of Xe²⁶⁺ ions implantation.

Keywords

EN

61.80.Jh; 61.82.Bg; 78.70.Bj

Discipline

• 61.80.Jh: Ion radiation effects(for ion implantation, see 61.72.U-)
• 61.82.Bg: Metals and alloys
• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 132
• Issue: 5
• Pages: 1585-1589

Dates

published

2017-11

Contributors

author

J. Dryzek

• Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Kraków, Poland

author

P. Horodek

• Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Kraków, Poland
• Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, Russia

author

V. Skuratov

• Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, Russia
• National Research Nuclear University MEPhI, Kashirskoye sh. 31, 115409 Moscow, Russia
• Dubna State University, Universitetskaya 19, 141980 Dubna, Moscow region, Russia

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Identifiers

DOI

10.12693/APhysPolA.132.1585