Conference paper Open Access

TOWARDS THE VALIDATION OF NEUTRON NOISE SIMULATORS: QUALIFICATION OF DATA ACQUISITION SYSTEMS

Rais A., Lamirand V., Pakari O., Laureau A., Pohlus J., Pohl C., Hübner S., Hursin M., Demazière C., and Pautz A


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    "description": "<p>This paper deals with the processes involved in the generation of reliable experimental<br>\ndata for the validation of computer simulations. In the field of neutron noise, the analysis<br>\nof results is based on spectral features of the detector signals in the frequency domain.<br>\nNeutron noise simulators also produce estimates that are subjected to studies in the same<br>\ndomain. The validation process of such simulations begins with the generation of reliable<br>\nexperimental data. In this work, we analyze results from two neutron noise experimental<br>\ncampaigns. The focus is placed upon de comparison of results obtained by different data<br>\nacquisition systems (DAQs) that were used to record the data in parallel. The goal is to<br>\nverify whether results obtained by the different DAQs are consistent, and thus reliable.<br>\nThe neutron noise-dedicated experiments were carried out in the AKR-2 reactor at the<br>\nTechnische Universit&auml;t Dresden and in the CROCUS reactor at the &Eacute;cole polytechnique<br>\nf&eacute;d&eacute;rale de Lausanne. The experiments consisted in introducing different types of periodic<br>\nreactivity perturbations: a rotating neutron absorber with a varying absorption crosssection<br>\nwith respect to the rotation angle; a linearly vibrating absorber that is moved back<br>\nand forth inside the reactor core; and a fuel rods oscillator that allows to vibrate a set of<br>\nfuel rods.</p>", 
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    "title": "TOWARDS THE VALIDATION OF NEUTRON NOISE SIMULATORS: QUALIFICATION OF DATA ACQUISITION SYSTEMS", 
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        "title": "Core monitoring techniques and experimental validation and demonstration", 
        "acronym": "CORTEX", 
        "program": "H2020", 
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    "keywords": [
      "CORTEX, CROCUS reactor, AKR-2 reactor, neutron noise"
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    "publication_date": "2019-08-25", 
    "creators": [
      {
        "name": "Rais A., Lamirand V., Pakari O., Laureau A., Pohlus J., Pohl C., H\u00fcbner S., Hursin M., Demazi\u00e8re C., and Pautz A"
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    "meeting": {
      "acronym": "M&C 2019", 
      "url": "https://www.mc2019.org/", 
      "dates": "25-29 August, 2019", 
      "place": "Portland, Oregon, USA", 
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