Deuteron Formation for Big Bang Nucleosynthesis Models
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Houghton College
Abstract
A measurement of the H(n, dγ) cross section at low energy is being performed on flight path 15R from Target 4 at WNR with incident neutron energies between 100 keVand 1 MeV. This deuteron formation experiment is key to improving calculations of the baryon density in Big Bang Nucleosynthesismodels. The deuterons are created and detected in a plastic scintillatoractive target. Gamma rays released by the neutron-proton capture reaction are detected in a BrilLanCedetector. Scattered neutrons from n-p elastic scattering detected in two neutron detectors are used for calibrating the active target ADC spectrum.
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XXX Annual Rochester Symposium for Physics Students, University of Rochester, Rochester, NY., April 9, 2011; LANSCE NS Student Poster Session, Los Alamos National Laboratory, Los Alamos, NM., July 27, 2010. Symposium 2010 “Championing Scientific Careers,” University of New Mexico-Los Alamos, August 3, 4, 2010.
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