Comparison of Various Reconstruction Techniques for Line Projections

• Authors: G. Kontrym-Sznajd , M. Samsel-Czekała , M. Biasini
• Languages of publication: EN

Abstracts

EN

The most effective and popular algorithms to reconstruct the three-dimensional electron-positron momentum density from the measurements of the two-dimensional angular correlation of annihilation radiation are based on the Fourier transform or polynomial expansion. We compare the efficacy of different methods in reconstructing the momentum density of the rare-earth based compounds ErGa_3, CeIn_3 and model profiles, presenting also our new filtering algorithm.

Keywords

EN

71.18.+y; 71.20.Lp; 78.70.Bj; 81.70.Tx

Discipline

• 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)
• 71.20.Lp: Intermetallic compounds
• 71.18.+y: Fermi surface: calculations and measurements; effective mass, g factor
• 81.70.Tx: Computed tomography

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 5
• Pages: 1429-1434

Dates

published

2008-05

received

2007-09-03

Contributors

author

G. Kontrym-Sznajd

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland

author

M. Samsel-Czekała

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland

author

M. Biasini

• Department of Physics, University of California at Riverside, California 92521, USA

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Identifiers

DOI

10.12693/APhysPolA.113.1429