Internal Radioactive Source Calibration of the Borexino Solar Neutrino Experiment

dc.contributor.authorBack, Henning Ollingen
dc.contributor.committeechairVogelaar, R. Bruceen
dc.contributor.committeememberFicenec, John R.en
dc.contributor.committeememberRaghavan, Ramaswamyen
dc.contributor.committeememberTakeuchi, Tatsuen
dc.contributor.committeememberPitt, Mark L.en
dc.contributor.departmentPhysicsen
dc.date.accessioned2011-08-22T19:06:47Zen
dc.date.adate2004-09-29en
dc.date.available2011-08-22T19:06:47Zen
dc.date.issued2004-06-18en
dc.date.rdate2004-09-29en
dc.date.sdate2004-09-24en
dc.description.abstractA measurement of solar neutrinos below 1 MeV of energy will further our knowledge of the neutrino's mass and mixing properties and will provide a probe to possible physics beyond the standard model of particle physics, as well as advance our understanding of energy production in the Sun. Borexino is a liquid scintillator detector that will measure the neutrino energy spectrum to the lowest energy threshold to date. It has been designed to measure the flux of the mono-energetic neutrinos produced by electron capture on 7Be in the Sun's core, which will produce a Compton-like edge in the energy spectrum. Because of the low count rate, Borexino requires extremely low backgrounds, and a good understanding of the backgrounds that do exist. Although the purification techniques used for the scintillator lowered the radioactive contaminates to levels never before achieved, cuts must still be made to the data. At Virginia Tech, we have developed an internal source calibration program that will be able to give us a thorough understanding of both the pulse shape discrimination efficiency and the energy and time response of Borexino. Energy calibration for alphas, betas, and gammas (energy scales) can be accomplished with such sources. When the calibration source is used in conjunction with an accurate source location system any spatial dependencies can be found. The system will use different types of sources at various energies to give the required information to make the cuts needed to extract believable physics from the detector.en
dc.description.degreePh. D.en
dc.format.mediumETDen
dc.identifier.otheretd-09242004-034356en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09242004-034356en
dc.identifier.urihttp://hdl.handle.net/10919/11255en
dc.publisherVirginia Techen
dc.relation.haspartfilling2.avien
dc.relation.haspartHenningBack.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectpulse shape discriminationen
dc.subjectradiationen
dc.subjectcalibrationen
dc.subjectneutrino physicsen
dc.titleInternal Radioactive Source Calibration of the Borexino Solar Neutrino Experimenten
dc.typeDissertationen
thesis.degree.disciplinePhysicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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