Simultaneous measurement of the neutron capture and fission yields of <sup>233</sup>U

Berthoumieux, E.; Abbondanno, U.; Aerts, G.; Álvarez, H.; Álvarez‐Velarde, F.; Andriamonje, S.; Andrzejewski, J.; Assimakopoulos, P.A.; Audouin, L.; Badurek, G.; Baumann, P.; Bečvář, F.; Calviño, F.; Calviani, M.; Cano‐Ott, D.; Capote, R.; Carrapiço, C.; Cennini, P.; Chepel, V.; Chiaveri, E.; Colonna, N.; Cortés, G.; Couture, A.; Cox, James W.; Dahlfors, M.; David, S.; Dillmann, I.; Domingo‐Pardo, C.; Dridi, W.; Durán, I.; Eleftheriadis, C.; Embid‐Segura, M.; Ferrant, L.; Ferrari, A.; Ferreira‐Marques, R.; Fujii, K.; Furman, W.; Gonçalves, I. F.; González‐Romero, E.; Gramegna, F.; Guerrero, C.; Gunsing, F.; Haas, B.; Haight, R. C.; Heil, M.; Herrera-Martı́nez, A.; Igashira, M.; Jericha, E.; Käppeler, F.; Kadi, Y.; Karadimos, D.; Karamanis, D.; Kerveno, M.; Koehler, P.; Kossionides, E.; Krtička, M.; Lampoudis, C.; Leeb, H.; Lindote, A.; Lopes, I.; Lozano, M.; Lukić, S.; Marganiec, J.; Marrone, S.; Martínez, T.; Massimi, C.; Mastinu, P.; Mengoni, A.; Milazzo, Paolo; Moreau, C.; Mosconi, M.; Neves, F.; Oberhummer, H.; O’Brien, S.; Pancin, J.; Papachristodoulou, C.; Papadopoulos, C.; Paradela, C.; Patronis, N.; Pavlik, A.; Pavlopoulos, P.; Perrot, L.; Pigni, Marco T.; Plag, R.; Plompen, A.; Plukis, A.; Poch, A.; Praena, J.; Pretel, C.; Quesada, J. M.; Rauscher, T.; Reifarth, R.; Rubbia, C.; Rudolf, G.; Rullhusen, P.; Salgado, J.; Santos, C.; Sarchiapone, L.; Savvidis, I.; Stéphan, C.; Tagliente, G.; Taín, J. L.; Tassan‐Got, L.; Tavora, L.; Terlizzi, R.; Vannini, G.; Vaz, P.; Ventura, Alessandro; Villamarı́n, D.; Vincente, M. C.; Vlachoudis, V.; Vlastou, R.; Voß, F.; Walter, S.; Wiescher, M.; Wisshak, K.

doi:10.1051/ndata:07665

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…The results from capture measurements of non-fissile isotopes at n TOF have reached an accuracy better than 4%. However, in the case of 233 U and due to the background from fission reactions the accuracy was limited to only 10% [7]. Such an accuracy is remarkable with respect to previous measurements, but still not sufficient for some actinides taking into account the nuclear data requirements in the field of nuclear technologies.…”

Section: Introductionmentioning

confidence: 59%

Simultaneous measurement of neutron-induced capture and fission reactions at CERN

et al. 2012

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Abstract. The measurement of the capture cross-section of fissile elements, of utmost importance for the design of innovative nuclear reactors and the management of nuclear waste, faces particular difficulties related to the γ-ray background generated in the competing fission reactions. At the CERN neutron time-of-flight facility n TOF we have combined the Total Absorption Calorimeter (TAC) capture detector with a set of three 235 U loaded MicroMegas (MGAS) fission detectors for measuring simultaneously two reactions: capture and fission. The results presented here include the determination of the three detection efficiencies involved in the process: ε T AC (n, f ), εTAC(n, γ) and εMGAS(n, f ). In the test measurement we have succeeded in measuring simultaneously with a high total efficiency the 235 U capture and fission cross-sections, disentangling accurately the two types of reactions. The work presented here proves that accurate capture cross-section measurements of fissile isotopes are feasible at n TOF.

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Section: Introductionmentioning

confidence: 59%

Simultaneous measurement of neutron-induced capture and fission reactions at CERN

et al. 2012

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“…A second neutron capture detector has become availabe in 2004 [38][39][40]. It consists of a 4π 100% efficiency total absorption capture detector, made up of 40 BaF 2 crystals contained in 10 B loaded carbon fibre capsules, coupled to XP4512B photomultipliers equipped with for this purpose designed voltage dividers.…”

Section: Detectors and Data Acquisitionmentioning

confidence: 99%

Neutron resonance spectroscopy at n_TOF at CERN

Gunsing

Abbondanno

Andriamonje

et al. 2007

Nd2007

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Abstract. Neutron resonance spectroscopy plays an important role in the investigation of neutron induced reaction cross sections and nuclear structure in the MeV excitation range. Neutron time-of-flight facilities are the most used installations to explore neutron resonances. In this paper we describe the basic features of neutron resonance spectroscopy together with recent results from the time-of-flight facility n TOF at CERN.

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