Publications [#383536] of Calvin R. Howell

Papers Published
  1. Tornow, W; Howell, CR; Pfutzner, HG; Roberts, ML; Felsher, PD; Chen, ZM; Al Ohali, M; Weisel, GJ; Walter, RL; Naqvi, AA, Analysing power for 12C(n,n0,1)12C and evaluation of n-12C scattering at 18.2 MeV, Journal of Physics G Nuclear Physics, vol. 14 no. 1 (December, 1988), pp. 49-64 [doi] .

    Abstract:
    The analysing power Ay( theta ) for 12C(n,n) 12C elastic scattering and for inelastic scattering to the first excited state (Jpi=2+, Q=-4.44 MeV) of 12C was measured at 18.2 MeV. A pulsed polarised neutron beam was produced via the 2H(d,n)3He polarisation transfer reaction. The A y data, together with published cross sections, were analysed in the framework of the spherical optical model and in the coupled-channels formalism. A phase-shift analysis at 18.2 MeV gives supporting evidence for a broad 5/2+ resonance. The 12C recoil kerma factors and values for the n+12C reaction cross section were deduced and compared with previous estimates and predictions.

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