Conference paper Open Access

Neutron kinetics equations in APOLLO3® code for application to noise problems.

Gammicchia A., Santandrea S., Zmijarevic I., Stankovski Z., and Dulla S

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  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3567571", 
  "title": "Neutron kinetics equations in APOLLO3\u00ae code for application to noise problems.", 
  "issued": {
    "date-parts": [
  "abstract": "<p>A 2-D noise model is implemented in the deterministic reactor code APOLLO3 R to simulate<br>\na periodic oscillation of a structural component. The Two/Three Dimensional Transport<br>\n(TDT) solver, using the Method of Characteristics, is adopted for the calculation of<br>\nthe case studies, constituted by a moving detector and control-rod bundle. The period is<br>\nconstructed by properly linking the geometries corresponding to the temporal positions.<br>\nThe calculation is entirely performed in the real time domain, without resorting to the traditional<br>\nfrequency approach. A dynamic eigenvalue is defined that takes into account the<br>\nsystem average reactivity over a period. The algorithm is accelerated by the DPN synthetic<br>\nmethod. For each cell of the domain, the time values of fission rates are analysed<br>\nto determine the noise extent.</p>", 
  "author": [
      "family": "Gammicchia A., Santandrea S., Zmijarevic I., Stankovski Z., and Dulla S"
  "id": "3567571", 
  "event-place": "Portland, Oregon, USA", 
  "type": "paper-conference", 
  "event": "Mathematics & Computational Methods Applied to Nuclear Science & Engineering (M&C 2019)"
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