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Polarization of neutrons from the D(d,n)He3 reaction below 200 keV

1964; Elsevier BV; Volume: 53; Linguagem: Inglês

10.1016/0029-5582(64)90608-x

1873-1546

John Thaddeus Rogers, C. D. Bond,

Nuclear physics research studies

The polarization of the neutrons emitted from the D(d,n)He3 reaction, at an angle of 45° in the laboratory system, has been determined to be (−11.1±1.5)%, (−7.8±1.4)% and (−6.0±1.8)% at average deuteron energies of 99.0 keV, 81.5 keV and 67.5 keV, respectively. The neutron polarization was calculated from measurement of the right-left asymmetry in scattering from carbon. The C12(n,n)C12 phase shifts of Meier, Scherrer and Trumpy were used to compute the carbon induced polarization at an average neutron energy of 2.7 MeV. The magnitude of the neutron polarization is higher than that predicted by an extrapolation of the theoretical expression given by Blin-Stoyle.