The CANDELLE experiment for characterization of neutron sensitivity of LiF TLDs
| Autor: | A. Gruel, A. Billebaud, Christophe Destouches, Patrick Blaise, Grégoire Kessedjian, O. Méplan, M. Le Guillou |
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| Přispěvatelé: | CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Département Etude des Réacteurs (DER), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
nuclear heating
Photon lithium-enriched TLDs Nuclear engineering fission reactor instrumentation Radiation effects 02 engineering and technology 01 natural sciences 7. Clean energy Thermoluminescence 030218 nuclear medicine & medical imaging fission research reactors 0302 clinical medicine Sensitivity fission reactor fuel design studies Inductors mixed gamma-neutron field thermoluminescence dosimetry Physics Monte Carlo methods gamma heating measurements 021001 nanoscience & nanotechnology low-power reactors Neutron temperature neutron effects calibration step Thermoluminescent dosimeter 0210 nano-technology EOLE reactor Nuclear and High Energy Physics Materials science photon calculation schemes LiF CANDELLE experiment Astrophysics::High Energy Astrophysical Phenomena QC1-999 neutron spectrum pure neutron field calibration thermal neutron field Radiation [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] nuclear heating measurements neutron detection 03 medical and health sciences gamma heating assessment irradiation conditions 0103 physical sciences Calibration Dosimetry Nuclear Energy platform gamma-ray detection Neutron Irradiation Electrical and Electronic Engineering fast neutron field Neutrons CANDELLE project Dosimeter 010308 nuclear & particles physics Attenuation research nuclear reactors thermoluminescent dosimeters (TLDs) core dimensions Heating systems calibration neutron sensitivity correction factors LiF TLDs Photonics neutron calibration glow curves Nuclear Energy and Engineering thermoluminescent dosimeters neutron sensitivity Neutron source neutron components |
| Zdroj: | EPJ Web of Conferences, Vol 170, p 04014 (2018) IEEE Transactions on Nuclear Science IEEE Transactions on Nuclear Science, 2018, 65 (9), pp.2426-2433. ⟨10.1109/TNS.2018.2857498⟩ IEEE Trans.Nucl.Sci. IEEE Trans.Nucl.Sci., 2018, 65 (9), pp.2426-2433. ⟨10.1109/TNS.2018.2857498⟩ IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2018, 65 (9), pp.2426-2433. ⟨10.1109/TNS.2018.2857498⟩ EPJ Web Conf. International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA 2017) International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA 2017), Jun 2017, Liège, Belgium. pp.04014, ⟨10.1051/epjconf/201817004014⟩ |
| ISSN: | 0018-9499 |
| Popis: | As part of the design studies of future power and research nuclear reactors, the validation of neutron and photon calculation schemes requires the implementation of nuclear heating measurements. Such measurements are usually performed in very low-power reactors, whose core dimensions are accurately known and where irradiation conditions are entirely controlled. The use of thermoluminescent dosimeters is particularly well suited to gamma heating measurements, although the TLDs are also sensitive to neutrons depending on their composition. Hence, for gamma heating assessment in a mixed gamma–neutron field, the neutron sensitivity correction factors of TLDs has to be accurately determined to ensure a better interpretation of doses measured in a reactor with reduced uncertainties. This paper presents the CANDELLE experiment, which is dedicated to the implementation of a pure neutron field calibration of lithium-enriched TLDs, by using the Platform for Studies and Research on Nuclear Energy platform of LPSC. This calibration step is part of a promising approach that has been recently developed at INFN for medical purposes, aiming at determining the gamma and neutron contributions to the doses measured by LiF TLDs in the mixed field, from the peak height ratios of the gamma and neutron calibration glow curves of this type of TLDs. The test irradiations conducted at LPSC within the first phase of the CANDELLE project allowed retrieving the peak height of LiF TLDs in fast neutron field, hence providing an early assessment of the neutron components of doses measured in the EOLE reactor at CEA Cadarache with around 10% uncertainty at $1\sigma$ . From these preliminary results, the second phase of the project will be devoted, on the one hand, to the use of moderator screens aiming at achieving a thermal neutron field while avoiding a too strong attenuation of the flux, and on the other hand, to the determination of the neutron spectrum at different locations within the irradiation area. |
| Databáze: | OpenAIRE |
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