Optimal elements for low-flux neutron activation analysis

Authors

  • Emerald G. Ramos Department of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University
  • Jayms S. Sagana Department of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University
  • Alvie A. Astronomo Department of Science and Technology – Philippine Nuclear Research Institute
  • Cheri Anne M. Dingle Department of Science and Technology – Philippine Nuclear Research Institute

Abstract

Neutron activation analysis (NAA) is a multi-element technique capable of detecting major, minor, and trace elements by irradiating samples with neutrons to induce radioactivity. Detection depends on nuclear characteristics like cross-section and half-life, with constraints when using low neutron flux sources. This study identified elements suitable for low-flux NAA through a literature review, focusing on interaction cross-sections and half-lives. Optimal elements have cross-sections of 1–100 barns and half-lives of 10 minutes to 7 days. Nuclides with cross-sections of 1–10 barns were considered if their natural abundance and gamma intensity exceeded 5%, and those with half-lives over 7 days if their cross-section exceeded 60 barns. The results determined 20 elements with their corresponding specific nuclide that satisfy the preferred criteria for low-flux NAA application.

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Issue

Article ID

SPP-2024-PA-06

Section

Poster Session A (Condensed Matter Physics and Materials Science)

Published

2024-06-26

How to Cite

[1]
EG Ramos, JS Sagana, AA Astronomo, and CAM Dingle, Optimal elements for low-flux neutron activation analysis, Proceedings of the Samahang Pisika ng Pilipinas 42, SPP-2024-PA-06 (2024). URL: https://proceedings.spp-online.org/article/view/SPP-2024-PA-06.