Detection of low-energy charged particles by channel electron multipliers

D. Newson, M. Shipman, S. Brawley, R. Kadokura, T. Babij, D. Cooke, D. Leslie, G. Laricchia*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)


    Experimental determinations of the detection efficiency for positrons impacting a channel electron multiplier with incident energies between 0-1400 eV are presented. A log-normal dependence with energy is established and used to compute the positron-to-positronium detection efficiency ratio as a function of positronium energy, as required for determining quantities involving the ratio of positron and positronium rates. A log-normal energy-dependence is also observed in results of previous work with electrons, protons and ions.

    Original languageEnglish
    Article numberP11026
    JournalJournal of Instrumentation
    Issue number11
    Publication statusPublished - 1 Nov 2022


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