Beta decay of fission products for the non-proliferation and decay heat of nuclear reactors
type: Dataset
description: Today, nuclear energy represents a non-negligible part of the global energy market, most likely a rolling wheel to grow in the coming decades. Reactors of the future must face the criteria including additional economic but also safety, non-proliferation, optimized fuel management and responsible management of nuclear waste. In the framework of this thesis, studies on non-proliferation of nuclear weapons are discussed in the context of research and development of a new potential tool for monitoring nuclear reactors, the detection of reactor antineutrinos, because the properties of these particles may be of interest for the International Agency of Atomic Energy (IAEA), in charge of the verification of the compliance by States with their safeguards obligations as well as on matters relating to international peace and security. The IAEA encouraged its member states to carry on a feasibility study. A first study of non-proliferation is performed with a simulation, using a proliferating scenario with a CANDU reactor and the associated antineutrinos emission. We derive a prediction of the sensitivity of an antineutrino detector of modest size for the purpose of the diversion of a significant amount of plutonium. A second study was realized as part of the Nucifer project, an antineutrino detector placed nearby the OSIRIS research reactor. The Nucifer antineutrino detector is dedicated to non-proliferation with an optimized efficiency, designed to be a demonstrator for the IAEA. The simulation of the OSIRIS reactor is developed here for calculating the emission of antineutrinos which will be compared with the data measured by the detector and also for characterizing the level of background noises emitted by the reactor detected in Nucifer. In general, the reactor antineutrinos are emitted during radioactive decay of fission products. These radioactive decays are also the cause of the decay heat emitted after the shutdown of a nuclear reactor of which the estimation is an iss…
identifier: NNT: 2012EMNA0004
issued: 2026-05-10T17:28:29.056648
language: fr
modified: 2026-05-10T17:28:29.056653
contact point: Organization
  fn: CCSD
keyword: antineutrinos
keyword: beta-decay
keyword: candu
keyword: decay-heat
keyword: decroissance-beta
keyword: effet-pandemonium
keyword: infoeu-reposemanticsdoctoralthesis
keyword: non-proliferation
keyword: nucifer
keyword: nuclear-reactor
keyword: osiris
keyword: pandemonium-effect
keyword: physnuclphysics-physicsnuclear-theory-nucl-th
keyword: puissance-residuelle
keyword: reacteur-nucleaire
keyword: tags
keyword: theses
landing page: https://theses.hal.science/tel-00834225

Beta decay of fission products for the non-proliferation and decay heat of nuclear reactors
type: Distribution
format: HTML
issued: 2026-05-10T17:28:29.078499
modified: 2026-05-10T17:28:29.035921
access URL: https://theses.hal.science/tel-00834225

test_moissonnage_selune
type: Agent