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Charged-particle tracking for neutron-deuteron breakup

Author(s)
Boddy, Kimberly K
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Massachusetts Institute of Technology. Dept. of Physics.
Advisor
June L. Matthews.
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M.I.T. 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. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
Particle tracking software has been developed to measure the energy of protons scattered in the breakup process d(n, np)n. The nd breakup experiment is performed at the Weapons Neutron Research facilities at Los Alamos Neutron Science Center. In order to fully define breakup kinematics for the stationary deuterium target, the following are measured: incident neutron beam energy, scattered proton energy and angle, and one of the scattered neutron angles. The proton energy is determined using a permanent magnet spectrometer, consisting of two permanent magnets placed between two wire chamber detectors. A particle tracking code uses the particle hit positions in the wire chambers to determine the proton's curvature (and hence deduce its energy) as it passes through the magnetic field of the magnets. Monte Carlo simulations show that the kinetic energy resolution is better at lower proton energies, when the magnetic field bends the particle more. The ultimate goal of the experiment is to measure the five-fold differential cross section to look for effects of three-nucleon forces.
Description
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2007.
 
Includes bibliographical references (p. 49-50).
 
Date issued
2007
URI
http://hdl.handle.net/1721.1/40909
Department
Massachusetts Institute of Technology. Dept. of Physics.
Publisher
Massachusetts Institute of Technology
Keywords
Physics.

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  • Physics - Bachelor's degree

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