Application of the EXtrapolated Efficiency Method (EXEM) to infer the gamma-cascade detection efficiency in the actinide region
| Autor: | L. Mathieu, M. Aiche, Q. Ducasse, B. Jurado, Paola Marini, B. Morillon, I. Tsekhanovich |
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| Přispěvatelé: | Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Direction des Applications Militaires (DAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Work (thermodynamics) Physics - Instrumentation and Detectors Fission Gamma-cascade detection efficiency FOS: Physical sciences [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] 01 natural sciences Measure (mathematics) 0103 physical sciences Neutron Statistical physics [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Nuclear Experiment (nucl-ex) 010306 general physics Nuclear Experiment Instrumentation Physics Extrapolated-Efficiency Method 010308 nuclear & particles physics Actinide Instrumentation and Detectors (physics.ins-det) Cascade Surrogate-reaction method Transfer-induced decay probabilities |
| Zdroj: | Nucl.Instrum.Meth.A Nucl.Instrum.Meth.A, 2016, 826, pp.60-64. ⟨10.1016/j.nima.2016.04.083⟩ |
| DOI: | 10.1016/j.nima.2016.04.083⟩ |
| Popis: | International audience; The study of transfer-induced gamma-decay probabilities is very useful for understanding the surrogate-reaction method and, more generally, for constraining statistical-model calculations. One of the main difficulties in the measurement of gamma-decay probabilities is the determination of the gamma-cascade detection efficiency. In Boutoux et al. (2013) [10] we developed the EXtrapolated Efficiency Method (EXEM), a new method to measure this quantity. In this work, we have applied, for the first time, the EXEM to infer the gamma-cascade detection efficiency in the actinide region. In particular, we have considered the 238 U(d,p) 239 U and 238 U( 3 He,d) 239 Np reactions. We have performed Hauser–Feshbach calculations to interpret our results and to verify the hypothesis on which the EXEM is based. The determination of fission and gamma-decay probabilities of 239 Np below the neutron separation energy allowed us to validate the EXEM. |
| Databáze: | OpenAIRE |
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