View Item 
        •   Utrecht University Student Theses Repository Home
        • UU Theses Repository
        • Theses
        • View Item
        •   Utrecht University Student Theses Repository Home
        • UU Theses Repository
        • Theses
        • View Item
        JavaScript is disabled for your browser. Some features of this site may not work without it.

        Browse

        All of UU Student Theses RepositoryBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

        The modulation experiment: searching for trends in radioactive decays

        Thumbnail
        View/Open
        masterthesis_TMons.pdf (3.480Mb)
        Publication date
        2019
        Author
        Mons, T.M.
        Metadata
        Show full item record
        Summary
        This master thesis investigates the decay of three radioactive isotopes: cs-137, co-60 and ti-44. The direct motivation for this experiment are claims of modulation in radioactive isotopes of yearly, monthly and daily frequencies. The stability of the modulation experiment is first investigated, and estimations of the effect of environmental parameters are made. Then the claim of yearly modulation is investigated for all sources and excluded at 95% confidence for amplitudes above 2.57*10^-4. Via power spectrum analysis other frequencies are also investigated, and no evidence of modulation is found.
        URI
        https://studenttheses.uu.nl/handle/20.500.12932/32899
        Collections
        • Theses
        Utrecht university logo