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dc.contributor.supervisor Page, Shelley (Physics and Astronomy) Falk, Willie (Physics and Astronomy) en
dc.contributor.author Wang, Peiqing
dc.date.accessioned 2007-06-07T13:32:21Z
dc.date.available 2007-06-07T13:32:21Z
dc.date.issued 2007-06-07T13:32:21Z
dc.identifier.uri http://hdl.handle.net/1993/2454
dc.description.abstract The Qweak experiment at Thomas Jefferson National Accelerator Facility (Jefferson Lab) will measure the proton's weak charge by measuring the parity violating asymmetry in elastic electron-proton scattering at very low momentum transfer, with the aim of determining the proton's weak charge with 4% combined statistical and systematic errors. The experimental apparatus includes a longitudinally polarized electron beam, a liquid hydrogen target, a room temperature toroidal magnetic spectrometer, and a set of precision detectors for the scattered electrons. The toroidal magnetic spectrometer, which will deflect away the inelastic scattered electrons and focus the elastic scattered electrons onto the detectors, plays a crucially important role in the experiment. In this thesis, in order to meet the requirements for the installation and calibration of the toroidal magnetic spectrometer, the numerical simulation of the spectrometer's magnetic field based on a realistic magnet model is discussed, a precise 3D field mapping is introduced, and some simulation results are provided. The zero-crossing analysis technique, which can be used to precisely infer the individual coil locations of the toroidal magnet, is presented and explored in detail. en
dc.format.extent 22207952 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject parity violation en
dc.subject scattering en
dc.subject weak charge en
dc.subject weak mixing angle en
dc.subject toroidal en
dc.subject magnetic field en
dc.subject mapping en
dc.subject zero-crossing en
dc.title Magnetic field simulation and mapping for the Qweak experiment en
dc.type info:eu-repo/semantics/masterThesis
dc.degree.discipline Physics and Astronomy en
dc.contributor.examiningcommittee Birchall, James (Physics and Astronomy) Shafai, Cyrus (Electrical and Computer Engineering) en
dc.degree.level Master of Science (M.Sc.) en
dc.description.note October 2007 en


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