High-energy fission cross sections induced by deuterons on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mn>232</mml:mn></mml:msup></mml:math>Th and protons on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mi>nat</mml:mi></mml:msup></mml:math>Pb targets

Zamani, M.; Stoulos, S.; Fragopoulou, M.; Krivopustov, M.I.

doi:10.1103/physrevc.87.067602

Cited by 1 publication

(3 citation statements)

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“…It models spallation targets taking into account the time evolution of their composition due to primary and secondary nuclear interactions and radioactive decays including nuclear reactions on spallation products. NuCoD was validated against available experimental data on nuclide composition in a Pb spallation target after its irradiation by a proton beam [23] and also against recently measured total cross sections of deuteron-induced fission of 232 Th and 238 U [18,20].…”

Section: Discussionmentioning

confidence: 99%

“…In order to illustrate a general trend of the total fission cross section as a function of beam energy the following analytical parametrization of r df from Ref. [18]: [16][17][18] for 232 Th and [16,19,20] is also shown in Fig. 1.…”

Section: Mcads -Monte Carlo Model For Accelerator Driven Systemsmentioning

confidence: 99%

“…Nevertheless, since the deuteron-induced fission of target nuclei is one of the key processes of neutron production, we have performed MCADS simulations to find the fractions of fission events in thin actinide targets irradiated by deuterons. The total deuteron-induced fission cross sections r df were estimated from these simulations and compared with the respective experimental data for 232 Th [16][17][18] and 238 U [16,19,20] nuclei in Fig. 1.…”

Section: Mcads -Monte Carlo Model For Accelerator Driven Systemsmentioning

confidence: 99%

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Synthesis of neutron-rich transuranic nuclei in fissile spallation targets

Mishustin¹,

Malyshkin²,

Pshenichnov³

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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a b s t r a c tA possibility of synthesizing neutron-rich superheavy elements in spallation targets of Accelerator Driven Systems (ADS) is considered. A dedicated software called Nuclide Composition Dynamics (NuCoD) was developed to model the evolution of isotope composition in the targets during a long-time irradiation by intense proton and deuteron beams. Simulation results show that transuranic elements up to 249 Bk can be produced in multiple neutron capture reactions in macroscopic quantities. However, the neutron flux achievable in a spallation target is still insufficient to overcome the so-called fermium gap. Further optimization of the target design, in particular, by including moderating material and covering it by a reflector could turn ADS into an alternative source of transuranic elements in addition to nuclear fission reactors.

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Section: Discussionmentioning

confidence: 99%