Prompt gamma and neutron detection in BNCT utilizing a CdTe detector

Alexander Winkler (Corresponding Author), Hanna Koivunoro, Vappu Reijonen, Iiro Auterinen, Sauli Savolainen

    Research output: Contribution to journalArticleScientificpeer-review

    22 Citations (Scopus)


    In this work, a novel sensor technology based on CdTe detectors was tested for prompt gamma and neutron detection using boronated targets in (epi)thermal neutron beam at FiR1 research reactor in Espoo, Finland. Dedicated neutron filter structures were omitted to enable simultaneous measurement of both gamma and neutron radiation at low reactor power (2.5 kW). Spectra were collected and analyzed in four different setups in order to study the feasibility of the detector to measure 478 keV prompt gamma photons released from the neutron capture reaction of boron-10. The detector proved to have the required sensitivity to detect and separate the signals from both boron neutron and cadmium neutron capture reactions, which makes it a promising candidate for monitoring the spatial and temporal development of in vivo boron distribution in boron neutron capture therapy.
    Original languageEnglish
    Pages (from-to)139-144
    JournalApplied Radiation and Isotopes
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed


    • BNCT
    • CdTe
    • Prompt gamma
    • Neutron detection
    • Neutron dosimetry
    • Spectrometry
    • Radiotherapy


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