Neutron-Induced Fission of233U,238U,232Th,239Pu,237Np,natPb and209Bi Relative to235U in the Energy Range 1-200 MeV

Shcherbakov, O. A.; Donets, A. Yu.; Evdokimov, A.V.; Фомичев, А. В.; Fukahori, Tokio; Hasegawa, Akira; Laptev, A.; Maslov, V. M.; Petrov, G. A.; Soloviev, S. M.; Tuboltsev, Yuri; Vorobyev, A. S.

doi:10.1080/00223131.2002.10875081

Cited by 107 publications

(45 citation statements)

References 3 publications

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“…3a) shows the results in comparison with the STARS data and the ENDF/B-VII.0 database and direct measurement data from Shcherbakov et al 8 These results agree within 6%. In Fig.…”

Section: Resultssupporting

confidence: 75%

The Surrogate Method: Past, Present and Future

Lesher¹,

Bernstein²,

Burke³

et al. 2008

Fission and Properties of Neutron-Rich Nuclei

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The STARS/LiBerACE collaboration has been exploring the surrogate technique with success in the actinide region. This method uses a direct reaction to measure the decay probability of the same compound nucleus produced via a neutron-induced channel. This paper serves as an overview of these activities. Using the STARS array at 88-inch Cyclotron at Lawrence Berkeley National Laboratory we have explored the following surrogate reactions:

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“…3a) shows the results in comparison with the STARS data and the ENDF/B-VII.0 database and direct measurement data from Shcherbakov et al 8 These results agree within 6%. In Fig.…”

Section: Resultssupporting

confidence: 75%

The Surrogate Method: Past, Present and Future

Lesher¹,

Bernstein²,

Burke³

et al. 2008

Fission and Properties of Neutron-Rich Nuclei

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“…1 to 4 illustrate the recommended cross sections for the above mentioned reactions as calculated in the present work compared with CINDA library. The results are in good agreement with the measured data [2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Recommended Cross Sectionsupporting

confidence: 81%

Optical Model Potential Using CINDA Library for Neutron Induced Cross Section Reactions for Spherical Uranium-235,238 Isotopes

Al-Alawy

Ali

2015

ILCPA

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ABSTRACT. The calculation are based mainly on the nuclear optical model potential and relevant parameters are collected and selected from References Input Parameter Library (RIPL) which is being developed under the international project coordinated by the International Atomic Energy Agency (IAEA). The analyzing of a complete energy range has done starting from threshold energy for each reaction. The cross sections are reproduced in fine steps of incident neutron energy with 0.01MeV intervals with their corresponding errors. The recommended cross sections for available experimental data taken from CINDA library have been calculated for all the considered neutron induced reactions for spherical U-235 and U-238 isotopes. The calculated results are analyzed and compared with the experimental data. The optimized optical potential model parameters give a very good agreement with the experimental data over the energy range 0.001-20MeV for neutron induced cross section reactions (n,f), (n,tot), (n,el), (n,inl), (n,2n), (n,3n), and (n,γ) for spherical U-235 and U-238 target elements.

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“…6a along with the direct measurement from Ref. [23] and adopted cross section data from the Np(n,f) reaction and b) Ratio for the 237 Np(n,f) to 235 U(n,f) cross sections of this work along with measured and evaluated data. The ratio for this work in b) was generated using the 235 U(n,f) data from ENDF/B-VII.0.…”

Section: Resultsmentioning

confidence: 99%

The (3He,tf) as a surrogate reaction to determine (n,f) cross sections in the 10–20 MeV energy range

Basunia¹,

Clark²,

Goldblum³

et al. 2009

Nuclear Instruments and Methods in Physics Research Section B:

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The surrogate reaction 238 IntroductionNeutron-induced reaction cross section data for radioactive nuclei are important for various basic and applied sciences [1, 2], however, target preparation for such studies is often complicated by material accessibility, availability, and radioactivity. The Surrogate Method provides access to such nuclear data indirectly [3]. In this method, the compound nucleus of a desired neutron-induced reaction is produced via a surrogate reaction and the decay probability of the compound nucleus to the desired exit channel, for example: fission, is measured experimentally by tagging on a fission event in coincidence with the ejected particle of the surrogate reaction, for example: 't' in the ( 3 He,t) reaction.Earlier work on the indirect determination of neutron-induced fission cross section was reported in the 1970s [4][5][6]. In recent years, there has been a renewed effort both in the forefront of theory and experiment to utilize indirect methods more effectively to address 2 nuclear data needs [7][8][9][10][11][12] MeV energy range. The Surrogate MethodIn the Hauser-Feshbach formulation [14], the cross-section, σ αχ , for forming a compound nucleus (CN) via entrance channel α and its subsequent decay via exit channel χ ( 237 Np+n and fission, respectively here) can be expressed as:where E* , J, and π are the excitation energy, total angular momentum, and parity of the CN, σ α CN is the compound nuclear formation cross section via entrance channel α and CN G χ is the probability of the CN decay through exit channel χ. In the case for neutrons incident on 237 Np,

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Neutron-Induced Fission of²³³U,²³⁸U,²³²Th,²³⁹Pu,²³⁷Np,^natPb and²⁰⁹Bi Relative to²³⁵U in the Energy Range 1-200 MeV

Cited by 107 publications

References 3 publications

The Surrogate Method: Past, Present and Future

The Surrogate Method: Past, Present and Future

Optical Model Potential Using CINDA Library for Neutron Induced Cross Section Reactions for Spherical Uranium-235,238 Isotopes

The (3He,tf) as a surrogate reaction to determine (n,f) cross sections in the 10–20 MeV energy range

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