Fission Fragment Angular Distribution measurements of<sup>235</sup>U and<sup>238</sup>U at CERN n_TOF facility

Leal-Cidoncha, E.; Durán, I.; Paradela, C.; Tarrío, D.; Leong, L.S.; Tassan‐Got, L.; Audouin, L.; Altstadt, S.; Andrzejewski, J.; Barbagallo, M.; Bécares, V.; Bečvář, F.; Belloni, F.; Berthoumieux, E.; Billowes, J.; Boccone, V.; Bosnar, D.; Brügger, M.; Calviani, M.; Calviño, F.; Cano‐Ott, D.; Carrapiço, C.; Cerutti, F.; Chiaveri, E.; Chin, M.; Colonna, N.; Cortés, G.; Cortés‐Giraldo, M. A.; Diakaki, Μ.; Domingo‐Pardo, C.; Dressler, R.; Dzysiuk, N.; Eleftheriadis, C.; Ferrari, A.; Fraval, K.; Ganesan, S.; García, A. R.; Giubrone, G.; Gómez-Hornillos, M.B.; Gonçalves, I. F.; González‐Romero, E.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Gurusamy, P.; Hernández-Prieto, A.; Jenkins, D. G.; Jericha, E.; Kadi, Y.; Käppeler, F.; Karadimos, D.; Kivel, N.; Koehler, P.; Kokkoris, M.; Krtička, M.; Kroll, J.; Lampoudis, C.; Langer, C.; Lederer, C.; Leeb, H.; Meo, S. Lo; Losito, R.; Mallick, A.; Manousos, A.; Marganiec, J.; Martínez, T.; Massimi, C.; Mastinu, P.; Mastromarco, M.; Meaze, M.; Mendoza, E.; Mengoni, A.; Milazzo, Paolo; Mingrone, F.; Mirea, M.; Mondelaers, W.; Pavlik, A.; Perkowski, J.; Plompen, A.; Praena, J.; Quesada, J. M.; Rauscher, T.; Reifarth, R.; Riego, A.; Robles, M.; Román, F.; Rubbia, C.; Sabaté-Gilarte, M.; Sarmento, R.; Saxena, A.; Schillebeeckx, P.; Schmidt, S.; Schumann, D.; Tagliente, G.; Taín, J. L.; Tsinganis, A.; Valenta, S.; Vannini, G.; Variale, V.; Vaz, P.; Ventura, Alessandro; Versaci, R.; Vermeulen, M. J.; Vlachoudis, V.; Vlastou, R.; Wallner, A.; Ware, T.; Weigand, M.; Weiß, C.; Wright, T.; Žugec, P.

doi:10.1051/epjconf/201611110002

Cited by 14 publications

(10 citation statements)

References 7 publications

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“…-For all actinide the anisotropy increases with the opening of each fission chance (n,f), (n,nf), (n,2nf), etc. -In the neutron energy range below 20 MeV our data agree well with the numerous previously obtained results [9][10][11][12][13][14][15][16][17][18][19][20]. This confirms the reliability of the used method of measurement of angular distributions of fission fragments.…”

Section: Resultssupporting

confidence: 91%

“…As for 238 U isotope, the fission fragment anisotropies obtained by different experimental setup are approximately the same within the experimental errors. Herewith, uncertainties of our data are much smaller than those presented by LealCidoncha et al [15] and Ryzhov et al [12]. Up to now, there were no experimental data on the fragment's angular anisotropy of 233 U for incident neutrons above 24 MeV.…”

Section: Resultscontrasting

confidence: 52%

“…The 235 U anisotropy data by Leal-Cidoncha [15] are located systematically above (∼2-3%) the data available in EXFOR. In neutron energy range above 50 MeV these data are higher than our data [1] (∼8% at 100 MeV).…”

Section: Resultsmentioning

confidence: 66%

“…This work was performed with the use of quasi-monochromatic neutron source. Therefore, it seems appropriate to compare their results with data obtained recently at TOF spectrometers such as GNEIS (PNPI) [1,2], n TOF (CERN) [13][14][15] and WNR (LANSCE) [16]. This analysis gives the possibility to determine anisotropy of angular distribution of fission fragments and estimate systematical errors of used methods and experimental setups.…”

Section: Resultsmentioning

confidence: 99%

“…At the same time, the data for the 238 U nucleus [13][14][15] are the Figure 6. Anisotropy of fission fragment of investigated actinide nuclei compared with the experimental data of other authors [9][10][11][12][13][14][15][16][17][18][19][20]. The solid curve on each graph is only the eye guide to the experimental data.…”

Section: Resultsmentioning

confidence: 99%

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Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

et al. 2017

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Abstract. Angular distributions of fission fragments from the neutron-induced fission of 232 Th, 233 U, 235 U, 238 U and 209 Bi have been measured in the energy range 1-200 MeV at the neutron TOF spectrometer GNEIS based on the spallation neutron source at 1 GeV proton synchrocyclotron of the PNPI (Gatchina, Russia). The multiwire proportional counters have been used as a position sensitive fission fragment detector. A description of the experimental equipment and measurement procedure is given. The anisotropy of fission fragments deduced from the data on measured angular distributions is presented in comparison with experimental data of other authors, first of all, the recent data from WNR at LANSCE (Los Alamos, USA) and n TOF(CERN).

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Section: Resultssupporting

confidence: 91%

Section: Resultscontrasting

confidence: 52%

Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

et al. 2017

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Determination of the number of 238U target nuclei and simulation of the neutron induced fission fragment energy spectrum

Bai

Jiang

et al. 2019

Applied Radiation and Isotopes

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The measurement programme at the neutron time-of-flight facility n_TOF at CERN

Gunsing¹,

Aberle²,

Andrzejewski³

et al. 2017

EPJ Web Conf.

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Abstract. Neutron-induced reaction cross sections are important for a wide variety of research fields ranging from the study of nuclear level densities, nucleosynthesis to applications of nuclear technology like design, and criticality and safety assessment of existing and future nuclear reactors, radiation dosimetry, medical applications, nuclear waste transmutation, accelerator-driven systems and fuel cycle investigations. Simulations and calculations of nuclear technology applications largely rely on evaluated nuclear data libraries. The evaluations in these libraries are based both on experimental data and theoretical models. CERN's neutron time-of-flight facility n TOF has produced a considerable amount of experimental data since it has become fully operational with the start of its scientific measurement programme in 2001. While for a long period a single measurement station (EAR1) located at 185 m from the neutron production target was available, the construction of a second beam line at 20 m (EAR2) in 2014 has substantially increased the measurement capabilities of the facility. An outline of the experimental nuclear data activities at n TOF will be presented.

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Fission Fragment Angular Distribution measurements of²³⁵U and²³⁸U at CERN n_TOF facility

Cited by 14 publications

References 7 publications

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Determination of the number of 238U target nuclei and simulation of the neutron induced fission fragment energy spectrum

The measurement programme at the neutron time-of-flight facility n_TOF at CERN

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Fission Fragment Angular Distribution measurements of235U and238U at CERN n_TOF facility

Cited by 14 publications

References 7 publications

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Angular distributions and anisotropy of fission fragments from neutron-induced fission in intermediate energy range 1–200 MeV

Determination of the number of 238U target nuclei and simulation of the neutron induced fission fragment energy spectrum

The measurement programme at the neutron time-of-flight facility n_TOF at CERN

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Product

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Fission Fragment Angular Distribution measurements of²³⁵U and²³⁸U at CERN n_TOF facility