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N. V. Antonenko - One of the best experts on this subject based on the ideXlab platform.
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Induced Fission modes of Fermium and Nobelium isotopes
Nuclear Physics A, 2018Co-Authors: H. Paşca, G. G. Adamian, A. V. Andreev, N. V. AntonenkoAbstract:Abstract The mass distributions of fragments resulting from the Fission of the isotopes of Fm and No at excitation energies 0–50 MeV are studied with the statistical scission-point Fission model. The available experimental mass distributions in the spontaneous and thermal-neutron-Induced Fission are well described and the origin of transition between asymmetric and symmetric Fission modes with variations of neutron number and excitation energy is explored.
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mass distributions for Induced Fission of different hg isotopes
Physical Review C, 2012Co-Authors: A. V. Andreev, G. G. Adamian, N. V. AntonenkoAbstract:With the improved scission-point model the mass distributions are calculated for Induced Fission of different Hg isotopes with the masses 180-196. The drastic change in the shape of the mass distribution from asymmetric to symmetric is revealed with increasing mass number of the Fissioning Hg isotope, and the reactions are proposed to verify this prediction experimentally. The asymmetric mass distribution of Fission fragments observed in the recent experiment on the Fission of 180Hg is explained. The calculated mass distribution and mean total kinetic energy of Fission fragments are in a good agreement with the available experimental data.
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Transfer-Induced Fission of superheavy nuclei
Physical Review C, 2010Co-Authors: G. G. Adamian, N. V. Antonenko, V. V. Sargsyan, Werner Scheid, A. S. ZubovAbstract:Possibilities of transfer-Induced Fission of new isotopes of superheavy nuclei with charge numbers 103-108 are studied for the first time in the reactions {sup 48}Ca+{sup 244,246,248}Cm at energies near the corresponding Coulomb barriers. The predicted cross sections are found to be measurable with the detection of three-body final states.
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Isotopic dependence of the cross section for the Induced Fission of heavy nuclei
Physics of Atomic Nuclei, 2009Co-Authors: O. N. Bolgova, G. G. Adamian, N. V. Antonenko, A. S. Zubov, S. P. Ivanova, Werner ScheidAbstract:The cross sections for the Induced Fission of 211−223Ra, 203−211Rn, and 221−231Th nuclei undergoing peripheral collisions with 208Pb nuclei are calculated on the basis of the statistical model. The role of the N = 126 neutron shell is studied. The level density in excited nuclei is determined within the Fermi gas model and a model that takes into account the collective enhancement of the level density. The inclusion of a particle—hole excitation in addition to a collective Coulomb excitation makes it possible to obtain a satisfactory description of experimental cross sections for the Fission of radium isotopes. The calculated ratios of the cross sections for the Induced Fission of 236U (237U) and 238U (239U) nuclei agree with experimental data.
S. Ganesan - One of the best experts on this subject based on the ideXlab platform.
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Studies on Neutron, Photon (Bremsstrahlung) and Proton Induced Fission of Actinides and Pre-Actinides
Journal of Nuclear Physics Material Sciences Radiation and Applications, 2015Co-Authors: Haladhara Naik, A. Goswami, V. T. Nimje, S. V. Suryanarayana, K. C. Mittal, Guinyun Kim, K. Kim, M.w. Lee, Ganesh Sanjeev, S. GanesanAbstract:We present the yields of various Fission products determined in the reactor neutron, 3.7-18.1 MeV quasi-mono energetic neutron, 8-80 MeV bremsstrahlung and 20-45 MeV proton Induced Fission of 232 Th and 238 u using radiochemical and off-line beta or gamma ray counting. The yields of the Fission products in the bremsstrahlung Induced Fission nat Pb and 209 Bi with 50- 70 MeV and 2.5 GeV based on off-line gamma ray spectrometric technique were also presented. From the yields of Fission products, the mass chains yields were obtained using charge distribution correction. From the mass yield distribution, the peak-to-valley (P/V) ratio was obtained. The role of excitation energy on the peak-to-valley ratio and fine structure such as effect of shell closure proximity and even-odd effect of mass yield distribution were examined. The higher yields of the Fission products around A=133-134, 138-140 and 143-144 and their complementary products explained from the nuclear structure effect and role of standard I and II mode of asymmetric Fission. In the neutron, photon (bremsstrahlung) and proton Induced Fission, the asymmetric mass distribution for actinides (Th, u) and symmetric
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Fission Product Yield in the Neutron-Induced Fission of 232Th with Average Energies of 5.42, 7.75, and 10.09 MeV
Nuclear Science and Engineering, 2014Co-Authors: P. M. Prajapati, Haladhara Naik, S. V. Suryanarayana, S. Mukherjee, B. S. Shivashankar, Rita Crasta, V. K. Mulik, K. C. Jagadeesan, S. V. Thakre, S. GanesanAbstract:AbstractThe yields of various Fission products in the neutron-Induced Fission of 232Th have been determined a using recoil catcher and off-line gamma-ray spectrometric technique with flux-averaged energies of 5.42, 7.75, and 10.09 MeV. The neutrons were generated using the 7Li(p,n) reaction at the BARC-TIFR [Bhabha Atomic Research Centre–Tata Institute of Fundamental Research] Pelletron facility, Mumbai, India. The Fission product–yield data in the 10.09-MeV neutron-Induced Fission of 232Th are determined for the first time. The yields of the different Fission products in the neutron-Induced Fission of 232Th with flux-averaged energies of 5.42 and 7.75 MeV from the present work have been compared with similar data of comparable neutron energy from the literature and are found to be in good agreement. The effect of nuclear structure on Fission product yields as a function of neutron energy has been examined.
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Yields of Fission Products in the Gamma Induced Fission of Preactinides and Actinides
Journal of the Korean Physical Society, 2011Co-Authors: Guinyun Kim, Haladhara Naik, S. Ganesan, Manwoo Lee, Moo-hyun Cho, Won NamkungAbstract:Nuclear data such as Fission cross-sections and yields of Fission products in neutronand gammaInduced Fission of pre-actinides and actinides are important for the Accelerator-Driven Subcritical systems (ADSs). Particularly yields of Fission products in high energy neutronand gamma-Induced Fission of long lived minor actinides (Np, Pu, Am and Cm) and pre-actinides (e.g., Pb and Bi) are needed for decay heat calculation. This is because in ADSs high energy (GeV) proton beam from accelerator are bombarded on Pb and Bi to produce high energy neutron by spallation process, which can incinerate minor actinides and transmute long-lived Fission products to solve the problem of radioactive hazard. In this process high energy γ-ray also produce, which can cause reaction and Fission of the spallation source and minor actinides. We present the yields of Fission products from the bremsstrahlung Induced Fission of Bi and Pb by using 50, 60, 70 MeV and 2.5 GeV electron beam of the Pohang Accelerator Laboratory, Korea. The yields of Fission products obtained in the 8 – 10 MeV bremsstrahlung Induced Fission of Th, U and Pu using Microtron at Mangalore University and electron LINAC at EBC centre, Kharghar, New-Mumbai, India are also discussed.
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Mass distribution in the bremsstrahlung-Induced Fission of 232Th, 238U and 240Pu
Nuclear Physics A, 2011Co-Authors: Haladhara Naik, A. Goswami, V. T. Nimje, Devesh Raj, S. V. Suryanarayana, Sarbjit Singh, S.n. Acharya, K. C. Mittal, S. Ganesan, P. ChandrachoodanAbstract:Abstract The yields of various Fission products in the 10 MeV bremsstrahlung-Induced Fission of 232Th, 238U and 240Pu were determined using a recoil catcher and off-line γ-ray spectrometric techniques. From the yield data, mass yield distributions were obtained using charge distribution corrections. The higher yields of Fission products around mass numbers 133–135, 138–140, 143–145 and their complementary products in the neutron and bremsstrahlung-Induced Fission of 232Th, 238U and 240Pu were interpreted based on nuclear structure effects. From the mass yield distribution, the peak-to-valley ( P / V ) ratio was also obtained for the above Fissioning systems. The present data, along with data from the literature on different bremsstrahlung- and mono-energetic neutron-Induced Fissions of 232Th and 238U are interpreted to examine the influence of excitation energy on the peak to valley ratio. For the same compound nucleus 240Pu⁎, the data in the 10–30 MeV bremsstrahlung-Induced Fission of 240Pu were compared with similar data of thermal to 14 MeV neutron-Induced Fission of 239Pu and the spontaneous Fission of 240Pu to examine the role of excitation energy due to bremsstrahlung radiation and mono-energetic neutrons.
Alexander V. Prokofiev - One of the best experts on this subject based on the ideXlab platform.
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Systematics of Proton-Induced Fission Cross Sections for Intermediate Energy Applications
arXiv: Nuclear Theory, 2002Co-Authors: Alexander V. Prokofiev, Stepan G. Mashnik, W. B. WilsonAbstract:The recent systematics of proton-Induced Fission cross sections is extended to a wider range of target nuclei and incident energies. Reasonable agreement with available experimental data is demonstrated. The extended systematics is employed to generate a data library for use in the CINDER'90 transmutation inventory code.
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Proton- and Neutron-Induced Fission Cross Sections and Fission Probability in the Intermediate Energy Region
Journal of Nuclear Science and Technology, 2002Co-Authors: A. N. Smirnov, V. P. Eismont, I.v. Ryzhov, Henri Condé, Nils Olsson, Per-ulf Renberg, Alexander V. ProkofievAbstract:New results are presented of the intermediate energy neutron- and proton-Induced Fission cross sections of nuclei in the lead region. These results, together with earlier ones, are used for comparison of the Fission probability of nuclei Induced by protons and neutrons. Possible physical reasons of observed differences in proton- and neutron-Induced Fission cross sections are discussed.
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Compilation and systematics of proton-Induced Fission cross-section data
Nuclear Instruments and Methods in Physics Research Section A: Accelerators Spectrometers Detectors and Associated Equipment, 2001Co-Authors: Alexander V. ProkofievAbstract:Abstract A compilation of proton-Induced Fission cross-section data in EXFOR has been performed. Cross-section parameterizations for target nuclei from 165 Ho to 239 Pu have been made on the basis of comparative critical analysis and selection of the data. The overall systematics that was created allows predictions to be made for nuclei for which experimental data do not exist.
Andrea Mattera - One of the best experts on this subject based on the ideXlab platform.
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Production of Sn and Sb isotopes in high-energy neutron-Induced Fission of natU
The European Physical Journal A, 2018Co-Authors: Andrea Mattera, Heikki Penttilä, Ali Al-adili, Mattias Lantz, Iain Moore, Sami Rinta-antila, Stephan Pomp, Vasileios Rakopoulos, Andreas Solders, Tommi EronenAbstract:The first systematic measurement of neutron-Induced Fission yields has been performed at the upgraded IGISOL-4 facility at the University of Jyvaskyla, Finland. The Fission products from high-energ ...
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nIGISOL 2016 : Measurement of n-Induced Fission yields of tin and antimony
2017Co-Authors: Andrea MatteraAbstract:The first run of neutron-Induced Fission yields measurement at IGISOL-4 was performed from Friday December 9th to Monday December 12th, 2016.After mass separation of the Fission products with the d ...
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Development of a neutron converter for studies of neutron-Induced Fission fragments at the IGISOL facility
2014Co-Authors: Mattias Lantz, Dmitry Gorelov, Ali Al-adili, Ari Jokinen, Andrea Mattera, Kolhinen, Sami Rinta-antila, H Penttilää, Stephan Pomp, RakoupoulosAbstract:Development of a neutron converter for studies of neutron-Induced Fission fragments at the IGISOL facility
G. G. Adamian - One of the best experts on this subject based on the ideXlab platform.
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Induced Fission modes of Fermium and Nobelium isotopes
Nuclear Physics A, 2018Co-Authors: H. Paşca, G. G. Adamian, A. V. Andreev, N. V. AntonenkoAbstract:Abstract The mass distributions of fragments resulting from the Fission of the isotopes of Fm and No at excitation energies 0–50 MeV are studied with the statistical scission-point Fission model. The available experimental mass distributions in the spontaneous and thermal-neutron-Induced Fission are well described and the origin of transition between asymmetric and symmetric Fission modes with variations of neutron number and excitation energy is explored.
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mass distributions for Induced Fission of different hg isotopes
Physical Review C, 2012Co-Authors: A. V. Andreev, G. G. Adamian, N. V. AntonenkoAbstract:With the improved scission-point model the mass distributions are calculated for Induced Fission of different Hg isotopes with the masses 180-196. The drastic change in the shape of the mass distribution from asymmetric to symmetric is revealed with increasing mass number of the Fissioning Hg isotope, and the reactions are proposed to verify this prediction experimentally. The asymmetric mass distribution of Fission fragments observed in the recent experiment on the Fission of 180Hg is explained. The calculated mass distribution and mean total kinetic energy of Fission fragments are in a good agreement with the available experimental data.
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Transfer-Induced Fission of superheavy nuclei
Physical Review C, 2010Co-Authors: G. G. Adamian, N. V. Antonenko, V. V. Sargsyan, Werner Scheid, A. S. ZubovAbstract:Possibilities of transfer-Induced Fission of new isotopes of superheavy nuclei with charge numbers 103-108 are studied for the first time in the reactions {sup 48}Ca+{sup 244,246,248}Cm at energies near the corresponding Coulomb barriers. The predicted cross sections are found to be measurable with the detection of three-body final states.
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Isotopic dependence of the cross section for the Induced Fission of heavy nuclei
Physics of Atomic Nuclei, 2009Co-Authors: O. N. Bolgova, G. G. Adamian, N. V. Antonenko, A. S. Zubov, S. P. Ivanova, Werner ScheidAbstract:The cross sections for the Induced Fission of 211−223Ra, 203−211Rn, and 221−231Th nuclei undergoing peripheral collisions with 208Pb nuclei are calculated on the basis of the statistical model. The role of the N = 126 neutron shell is studied. The level density in excited nuclei is determined within the Fermi gas model and a model that takes into account the collective enhancement of the level density. The inclusion of a particle—hole excitation in addition to a collective Coulomb excitation makes it possible to obtain a satisfactory description of experimental cross sections for the Fission of radium isotopes. The calculated ratios of the cross sections for the Induced Fission of 236U (237U) and 238U (239U) nuclei agree with experimental data.