Photofissility of Actinide Nuclei at Intermediate Energies

Deppman, A.; Tavares, O. A. P.; Duarte, S. B.; Oliveira, Evandro Chaves de; Arruda‐Neto, J. D. T.; Pina, S.R. de; Likhachev, V.P.; Rodriguez, Oscar Maurício Hernandez; Mesa, J.; Gonçalves, Marco Antônio

doi:10.1103/physrevlett.87.182701

Cited by 40 publications

(37 citation statements)

References 25 publications

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“…This code has been developed for more than ten years [8][9][10][11][12][13][14] and it has been applied in the study of fission induced by photons and protons, and for the study of hyper-nuclear decay [15]. It has also been used in the development of new nuclear reactor technologies [16][17][18].…”

Section: Methodsmentioning

confidence: 99%

Photon and proton induced fission on heavy nuclei at intermediate energies

Andrade-II

Karapetyan

Deppman

et al. 2014

EPJ Web of Conferences

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Abstract. We present an analysis of fission induced by intermediate energy protons or photons on actinides. The 660 MeV proton induced reactions are on 241 Am, 238 U, and 237 Np targets and the Bremmstrahlung-photons with end-point energies at 50 MeV and 3500 MeV are on 232 Th and 238 U targets. The study was performed by means of the Monte Carlo simulation code CRISP. A multimodal fission extension was added to the code within an approach which accounts for the contribution of symmetric and asymmetric fission. This procedure allowed the investigation of fission cross sections, fissility, number of evaporated nucleons and fission-fragment charge distributions. The comparison with experimental data show a good agreement between calculations and experiments.

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Section: Methodsmentioning

confidence: 99%

Photon and proton induced fission on heavy nuclei at intermediate energies

Andrade-II

Karapetyan

Deppman

et al. 2014

EPJ Web of Conferences

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“…The results obtained were published in journals of international renown. 83,84,85,86,87,88,89,90,91,92,93 When it comes to applied and experimental nuclear physics, projects associated with the development of nuclear methods of analysis, which are used in applications in the areas of medical physics, geological prospecting, agriculture, industry, radiological protection, dosimetry and the environment, continued to be pursued. They were also used to model and simulate nuclear and radioactive processes, and to collect nuclear data for nuclear techniques, among others.…”

Section: Development Of the Second Stagementioning

confidence: 99%

On the Development of Nuclear Physics in Cuba

Díaz-Balart

2017

Nuclear Physics News

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“…The decay of the CN takes into account all accessible channels, with the related branchings calculated in terms of the nuclear level densities of the daughter nuclei. The basic steps to calculate the relative probabilities between the competing channels (particle evaporation and nuclear fission) are described elsewhere [1,18,19]. Even though these approaches have successfully described neutron multiplicities and photofission probability, they were also characterized by an oversimplification for the evaluation of the kinetic energies of the emitted particles, which were arbitrarily fixed at 2.0 MeV.…”

Section: B the Evaporation Monte Carlo Modelmentioning

confidence: 99%

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

et al. 2007

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A comprehensive analysis of electrodisintegration yields of protons on 90 Zr is proposed taking into account the giant dipole resonance, isovector giant quadrupole resonance (IVGQR), and quasideuteron contributions to the total photoabsorption cross section from 10 to 140 MeV. The calculation applies the MCMC intranuclear cascade to address the direct and pre-equilibrium emissions and another Monte Carlo-based algorithm to describe the evaporation step. The final results of the total photoabsorption cross section for 90 Zr and relevant decay channels are obtained by fitting the (e, p) measurements from the National Bureau of Standards and show that multiple proton emissions dominate the photonuclear reactions at higher energies. These results provide a consistent explanation for the exotic and steady increase of the (e, p) yield and also a strong evidence of a IVGQR with a strength parameter compatible with the E2 energy-weighted sum rule. The inclusive photoneutron cross sections for 90 Zr and nat Zr, derived from these results and normalized with the (e, p) data, are in agreement within 10% with both Livermore and Saclay data up to 140 MeV.

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Photofissility of Actinide Nuclei at Intermediate Energies

Cited by 40 publications

References 25 publications

Photon and proton induced fission on heavy nuclei at intermediate energies

Photon and proton induced fission on heavy nuclei at intermediate energies

On the Development of Nuclear Physics in Cuba

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

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