Alpha energy dependence of alpha induced liquid radioluminescense

Rikard Malmbeck, Nidhu Lal Banik, Thomas Kerst, Zsolt Soti

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


The presence of alpha radiation causes weak nitric acid solutions to emit ultraviolet light. The light is an optical indicator for the presence of alpha radiation and thus potentially valuable in nuclear facilities and for nuclear safety at large. The origins and mechanisms that give rise to the light emissions are yet to be understood which prevents the light from being efficiently used in techniques that enable optical detection of alpha radiation in nitric acid solutions. This work addresses this issue by measuring the light yield as a function of the alpha particle energy. This particular study recorded the light output of alpha particles produced by 244Cm (Ea = 5.805 MeV), 241Am (Ea = 5.485 MeV) and 231Pa (Ea = 5.014 MeV) and found essentially no significant dependence of the light output with the energy of the alpha particle. The number of photons produced per stopped alpha particle was found to be 0.297 ± 0.006 (244Cm), 0.307 ± 0.004 (241Am) and 0.304 ± 0.006 (231Pa) with a coverage factor, k = 1. This journal is

Original languageEnglish
Pages (from-to)7766-7773
Number of pages8
JournalNew Journal of Chemistry
Issue number17
Publication statusPublished - Mar 2021
Publication typeA1 Journal article-refereed

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry


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