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Título: Application of reactivity method to MTR fuel burn-up measurement
Autor: Zúñiga, Agustín
Cuya, Teobaldo
Matjaž, Ravnik
Temas: Reactividad
Elementos combustibles
Grado de quemado
Reactor RP-10
Reactor MTR
Fecha de publicación: jun-2002
Lugar de publicación: Lima
Citación: Zúñiga A, et al. Application of reactivity method to MTR fuel burn-up measurement. Instituto Peruano de Energía Nuclear. Informe Científico Tecnológico 1998-2001. Lima: IPEN; 2002. p. 87-89.
Resumen: Fuel element burn-up has been measured for the first time by reactivity method in a MTR reactor. The measurement was performed in RP-10 reactor of Peruvian Institute for Nuclear Energy (IPEN) in Lima. It is a pool type 10MW material testing reactor using standard 20% enriched uranium plate type fuel elements. A fresh element and an element with well defined burn-up were selected as reference elements. Several elements in the core were selected for burn-up measurement. Each of them was replaced in its original position by both reference elements. Change in reactivity was measured using control rod calibration curve. The burn-up reactivity worth of fuel elements was plotted as a function of their calculated burn-up. Corrected burn-up values of the measured fuel elements were calculated using the fitting function at experimental reactivity for all elements. Good agreement between measured and calculated burn-up values was observed indicating that the reactivity method can be successfully applied also to MTR fuel element burn-up determination.
Identificador digital (URI): http://dspace.ipen.gob.pe/handle/ipen/188
ISSN: 1684-1662
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