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Performance improvement of keV Neutrons-based PGNAA setups

  • A. A. Naqvi*
  • , M. S. Abdelmonem
  • , Ghada Al-Misned
  • , Hanan Al-Ghamdi
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The performance of keV neutrons based Prompt Gamma Ray Neutron Activation Analysis (PGNAA) setups have been observed to improve by enclosing its neutron source inside the moderator. The keV neutrons were produced via 7Li(p,n) reaction and 3H(p,n) reactions. For the two PGNAA setups, the maximum intensity of the prompt γ-ray yield was observed for a 5 cm long moderator with the neutron source positioned at a distance of 0.5 cm from the moderator-end facing the sample. Due to enclosing the source inside the moderator, the prompt γ-ray yield from the 7Li(p,n) reaction and 3H(p,n) reaction based PGNAA setups have increased by a factor of three as compared to that achieved from these setups with the source outside the moderator. This study provides a theoretical basis for the measurement of performance of 7Li(p,n) reaction and the 3H(p,n) reaction based PGNAA setups.

Original languageEnglish
Pages (from-to)1631-1636
Number of pages6
JournalApplied Radiation and Isotopes
Volume64
Issue number12
DOIs
StatePublished - Dec 2006

Bibliographical note

Funding Information:
The authors would like to acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran and Girls Education College, Riyadh Girls Colleges, Riyadh, Saudi Arabia.

Keywords

  • Monte Carlo simulations
  • PGNAA
  • Polyethylene moderator
  • Portland cement sample

ASJC Scopus subject areas

  • Radiation

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