Study on the response of IFMIF fission chambers to mixed neutron-gamma fields: PH-2 experimental tests

Rapisarda, D.; Vermeeren, L.; Garcia, A.; Cabellos de Francisco, Oscar Luis; Garcia, J.M.; Ibarra, A.; Gómez Ros, J.M.; Mota, F.; Casal, N. y Queral, V. (2011). Study on the response of IFMIF fission chambers to mixed neutron-gamma fields: PH-2 experimental tests. "Fusion Engineering and Design", v. 86 (n. 6-8); pp. 1232-1235. ISSN 0920-3796. https://doi.org/10.1016/j.fusengdes.2011.03.079.

Descripción

Título: Study on the response of IFMIF fission chambers to mixed neutron-gamma fields: PH-2 experimental tests
Autor/es:
  • Rapisarda, D.
  • Vermeeren, L.
  • Garcia, A.
  • Cabellos de Francisco, Oscar Luis
  • Garcia, J.M.
  • Ibarra, A.
  • Gómez Ros, J.M.
  • Mota, F.
  • Casal, N.
  • Queral, V.
Tipo de Documento: Artículo
Título de Revista/Publicación: Fusion Engineering and Design
Fecha: Octubre 2011
Volumen: 86
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Nuclear [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The engineering design of fissionchambers as on-line radiation detectors for IFMIF is being performed in the framework of the IFMIF-EVEDA works. In this paper the results of the experiments performed in the BR2 reactor during the phase-2 of the foreseen validation activities are addressed. Two detectors have been tested in a mixedneutron-gamma field with high neutron fluence and gamma absorbed dose rates, comparable with the expected values in the HFTM in IFMIF. Since the neutron spectra in all BR2 channels are dominated by the thermal neutron component, the detectors have been surrounded by a cylindrical gadolinium screen to cut the thermal neutron component, in order to get a more representative test for IFMIF conditions. The integrated gamma absorbed dose was about 4 × 1010 Gy and the fast neutron fluence (E > 0.1 MeV) 4 × 1020 n/cm2. The fissionchambers were calibrated in three BR2 channels with different neutron-to-gamma ratio, and the long-term evolution of the signals was studied and compared with theoretical calculations

Más información

ID de Registro: 11166
Identificador DC: http://oa.upm.es/11166/
Identificador OAI: oai:oa.upm.es:11166
Identificador DOI: 10.1016/j.fusengdes.2011.03.079
Depositado por: Memoria Investigacion
Depositado el: 26 Jun 2012 08:48
Ultima Modificación: 20 Abr 2016 19:19
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