Perturbation Theory-Based Whole-Core Eigenvalue Sensitivity and Uncertainty (SU) Analysis via a 2D/1D Transport Code

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Code</td><td class="align_center">Forward/difference</td><td class="align_center">Adjoint</td><td class="align_center">Rel. uncertainty, Δ<i>k</i>/<i>k</i> (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">HNET</td><td class="align_center">1.18724/20 pcm</td><td class="align_center">1.18724</td><td class="align_center">0.51</td></tr><tr><td class="align_left">Tsunami-2D</td><td class="align_center">1.17720/984 pcm</td><td class="align_center">1.17710</td><td class="align_center">0.53</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td><div><sup>a</sup>Forward eigenvalue reference is 1.18704 ± 0.000054.<br/></div></td></tr></table>

<div>Calculated eigenvalue and uncertainties for the 2D pin-cell problem.</div>

Science and Technology of Nuclear Installations

tab6

Table 6

Table 6: Perturbation Theory-Based Whole-Core Eigenvalue Sensitivity and Uncertainty (SU) Analysis via a 2D/1D Transport Code 