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Physics of Particles and Nuclei Letters

, Volume 15, Issue 7, pp 975–976 | Cite as

Measurement of Monochromatic Positron Lifetime in a Continuous Flux

  • E. V. Ahmanova
  • M. K. Eseev
  • V. I. Hilinov
  • P. Horodek
  • A. G. Kobets
  • V. V. Kobets
  • I. N. Meshkov
  • O. S. Orlov
  • K. Siemek
  • A. A. Sidorin
Control and Diagnostic Systems
  • 6 Downloads

Abstract

A scheme and a setup for the formation of the continuous monochromatic positron flux with a controllable time of arrival at the target independent of the launch time within a limited time interval are proposed. The method is described in [1]. The setup is intended for conducting experiments on measuring positron lifetime in matter using positron annihilation lifetime spectroscopy (PALS). This method allows types of defects to be discriminated in materials. In the proposed version, it is possible to vary the positron energy, which allows the distribution of defects over the sample depth to be analyzed. Schemes of periodic preset-shape RF voltage generation and positron lifetime measurement are discussed.

References

  1. 1.
    I. N. Meshkov, “Formation of ordered positron flux,” in Proceedings of the 12th International Seminar on Problems of Charged Particle Accelerators, Dedicated to V. P. Sarantsev’ Memory, Alushta Krym, Russia.Google Scholar
  2. 2.
    P. Horodek, A. G. Kobets, I. N. Meshkov, A. A. Sidorin, and O. S. Orlov, “Slow positron beam at JINR, Dubna,” Nucleonica 60, 725 (2015).Google Scholar
  3. 3.
    P. Horodek, M. Bugdol, A. G. Kobets, I. N. Meshkov, O. S. Orlov, A. Yu. Rudakov, A. A. Sidorin, and S. L. Yakovenko, “Development of positron annihilation spectroscopy at the LEPTA facility,” Phys. Part. Nucl. 11, 708 (2014).CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • E. V. Ahmanova
    • 1
  • M. K. Eseev
    • 1
    • 4
  • V. I. Hilinov
    • 1
  • P. Horodek
    • 1
    • 2
  • A. G. Kobets
    • 1
    • 3
  • V. V. Kobets
    • 1
  • I. N. Meshkov
    • 1
  • O. S. Orlov
    • 1
  • K. Siemek
    • 1
    • 2
  • A. A. Sidorin
    • 1
  1. 1.Joint Institute for Nuclear ResearchDubnaRussia
  2. 2.Institute of Nuclear PhysicsPolish Academy of SciencesKrakowPoland
  3. 3.Institute of Electrophysics and Radiation TechnologiesNational Academy of Sciences of UkraineKharkovUkraine
  4. 4.Northern (Arctic) Federal UniversityArkhangelskRussia

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