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Humidity effects on neutron irradiated beryllium

Nuclear Materials and Energy, ISSN: 2352-1791, Vol: 35, Page: 101454
2023
  • 1
    Citations
  • 0
    Usage
  • 4
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1
  • Captures
    4
  • Mentions
    1
    • News Mentions
      1
      • 1

Most Recent News

New Nuclear Materials and Energy Research Has Been Reported by Researchers at University of Latvia (Humidity effects on neutron irradiated beryllium)

2023 JUN 08 (NewsRx) -- By a News Reporter-Staff News Editor at Energy Daily News -- New study results on nuclear materials and energy have

Article Description

This study focuses on neutron-irradiated beryllium interactions with air of differing humidity, simulating water cooled fusion reactor malfunction. Beryllium in the form of ∼ 1 mm ∅ pebbles has been used in the study. Both non-irradiated and neutron-irradiated pebbles were thermally treated and studied using thermogravimetric/differential thermal analysis in dry airflow with relative humidity (RH) < 5 % and humid > 90% RH. Surface structure and composition was investigated with scanning electron microscopy (SEM) and energy dispersion X-ray spectrometry (EDX). Tritium release was monitored using a tritium monitor. Results show that elevated RH coupled with neutron irradiation damage on beryllium yields the largest mass increase of 180% (in relation to the initial mass) compared to non-irradiated Be treated in RH < 5% which resulted in 3 % mass increase. SEM and EDX revealed a substantial number of cracks as well as the formation of irregular shape micro-/nanoparticles of BeO. Tritium release took place at temperatures above ∼ 1040 K, reaching a peak after 1263 K. Overall tritium inventory was estimated to be up to 1.08∙10 17 T atoms/g.

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