Calibration of Neutron Monitor Yield Functions with AMS Data

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dc.contributor.advisorBindi, Veronica
dc.contributor.authorHolthaus, Alexandria
dc.contributor.departmentPhysics
dc.date.accessioned2024-07-02T23:41:49Z
dc.date.available2024-07-02T23:41:49Z
dc.date.issued2024
dc.description.degreeM.S.
dc.identifier.urihttps://hdl.handle.net/10125/108342
dc.subjectPhysics
dc.subjectAstronomy
dc.subjectAstrophysics
dc.subjectAlpha Magnetic Spectrometer
dc.subjectNeutron Monitor
dc.subjectScale Factor
dc.subjectYield Function
dc.titleCalibration of Neutron Monitor Yield Functions with AMS Data
dc.typeThesis
dcterms.abstractStars, including the Sun, shower our planet with a multitude of particles. We measure their fluxes both with space-based and ground-based detectors. Space-based detectors see more particles, but their detection area is confined to a small orbit. Ground-based detectors, especially Neutron Monitors (NMs), are cheaper and are placed across the globe. We can use them to fill in the gaps given we have an accurate way to correlate the two types of data. This thesis explored correlations between space-based and ground-based measurements. In the literature, such correlations are parametrized by Yield Functions (YFs) which are fits derived from Monte Carlo simulations of particle cascades. I compared three popular YFs (Mi20, Mi13, and Ma16) correlating AMS-02 flux spectrums with 21 NMs. I found that the Mi20 YF gives the most stable results on Bartels Rotation (27 day) averaged data. However, none of them are optimal on daily time scales, which is essential for use of NMs for space weather and other short time scale solar event analysis. In this thesis, I explore why this may be and give suggestions on how this could be corrected for in the future.
dcterms.extent66 pages
dcterms.languageen
dcterms.publisherUniversity of Hawai'i at Manoa
dcterms.rightsAll UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.typeText
local.identifier.alturihttp://dissertations.umi.com/hawii:12046

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