Evaluation of Positron Implantation Profiles in Various Materials for ²²Na Source

• Authors: L. Dubov , Yu. Akmalova , S. Stepanov , Yu. Shtotsky , Yu. Shtotsky
• Languages of publication: EN

Abstracts

EN

Positron implantation profiles in various materials for ²²Na isotope source are discussed. The spatial distribution of positrons in materials with densities from 1 to 21 g/cm³ are simulated using GEANT4 code. The results indicate that depth distributions of thermalized positrons in any homogeneous medium can be described by the sum of two exponential functions. Contribution of the short-range exponent is about 11% in the materials. The both absorption coefficients can be well represented as a function of material density and atomic number. Proposed empirical model agrees well with available experimental data.

Keywords

EN

02.70.Uu; 29.90.+r

Discipline

• 29.90.+r: Other topics in elementary-particle and nuclear physics experimental methods and instrumentation (restricted to new topics in section 29)
• 02.70.Uu: Applications of Monte Carlo methods(see also 02.50.Ng in probability theory, stochastic processes, and statistics, and 05.10.Ln in statistical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 132
• Issue: 5
• Pages: 1482-1485

Dates

published

2017-11

Contributors

author

L. Dubov

• National Research Nuclear University MEPhI, 115409, Kashirskoe shosse, 31, Moscow, Russia
• NRC Kurchatov Institute, Institute of Theoretical and Experimental Physics, 117218, Bolshaya Cheremushkinskaya Str., 25, Moscow, Russia

author

Yu. Akmalova

• National Research Nuclear University MEPhI, 115409, Kashirskoe shosse, 31, Moscow, Russia

author

S. Stepanov

• National Research Nuclear University MEPhI, 115409, Kashirskoe shosse, 31, Moscow, Russia
• NRC Kurchatov Institute, Institute of Theoretical and Experimental Physics, 117218, Bolshaya Cheremushkinskaya Str., 25, Moscow, Russia

author

Yu. Shtotsky

• NRC Kurchatov Institute, Institute of Theoretical and Experimental Physics, 117218, Bolshaya Cheremushkinskaya Str., 25, Moscow, Russia

author

Yu. Shtotsky

• National Research Nuclear University MEPhI, 115409, Kashirskoe shosse, 31, Moscow, Russia
• NRC Kurchatov Institute, Institute of Theoretical and Experimental Physics, 117218, Bolshaya Cheremushkinskaya Str., 25, Moscow, Russia

References

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Identifiers

DOI

10.12693/APhysPolA.132.1482