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Published: 2016-03-30
Abstract Views: 251
Views PDF: 25
DOI: https://doi.org/10.53747/jnst.v6i1.146
Issue
Vol. 6 No. 1 (2016)
Section
Articles
How to Cite
Trinh, H. L., Chau, V. T., Le, H. L., & Tran, Q. D. (2016). Positron annihilation in mordenite zeolite. Nuclear Science and Technology, 6(1), 50-55. https://doi.org/10.53747/jnst.v6i1.146

Positron annihilation in mordenite zeolite

Trinh Hoa Lang1, Chau Van Tao1, Le Hoang Lam1, Tran Quoc Dung2
1 Nuclear Physics Department , Physics and Engineering Physics Faculty, University of Sciences –VNUHCM
2 Nuclear Technique Center – HoChiMinh City.

Main Article Content

Abstract

The theoretical study of the positron annihilation in complex material such as zeolite is greatly significant to support and increase the accuracy analysis of the material structure from the experimental data of the positron annihilation. The mordenite zeolite is a big and complicated structure consisting of channels and cavities. The analysis of the mordenite structure is studied by the PALS so depending on the selection of the positron lifetime components of the positron annihilation spectra fitting methods. Therefore, these positron life times in on TO4, Na, Ca, K, Fe, H2O and the rings which form the channels and cavities are sophisticatedly studied by the DFT calculation using Ab-initio. The mordenite and modified mordenite zeolite structures are precisely analyzed, and the physical behaviors of the positron in these are more understood by these theoretical results.

Article Details

Keywords

positron, DFT, PALS, zeolite, mordenite, annihilation

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