Neutron multiplication in uranium bombarded with 300?660-MeV protons

Vasil'kov, R.G.; Goldanskii, V. I.; Pimenov, B. A.; Pokotilovskii, Yu. N.; Chistyakov, L.V.

doi:10.1007/bf01124414

Cited by 7 publications

(7 citation statements)

References 9 publications

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“…Many computational-theoretical investigations and numerous experiments studying neutron generation and energy production in heavy targets in proton beams are now being conducted. Examples are [4][5][6][7][8][9][10][11][12][13].…”

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confidence: 99%

Analysis of the main nuclear-physical characteristics of the interaction of proton beams with heavy metal targets

et al. 2008

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It is shown that the concept of relativistic heavy-nuclear energy is untenable. Using a large group of different experiments in the proton energy range 0. it is demonstrated that the high-energy hadron transport program SHIELD, which is based on modern nuclear models, has predictive power. The interaction of protons with energy ranging from 0.1 to 100 GeV with a simple model system target + blanket, containing heavy elements (lead, thorium, depleted and enriched uranium), is examined. The energy release, neutron production, and production of fissile isotopes in the system are calculated. It is found that for all values of the proton energy which are considered the useful yield of energy in weakly fissile media is inadequate (thorium, depleted uranium) and is completely absent in non-fissile media (lead). A blanket containing enriched uranium will be necessary in order to use the scheme for useful production of energy. In this variant, the optimal proton energy is 1-3 GeV, which corresponds to the conventional concept of electronuclear facilities whose main purpose is to transmute nuclear wastes and produce electricity at the same time.The concept of commercial production of energy using accelerators to accelerate heavy charged particles has been discussed since the beginning of the 1950s. According to this concept, a beam of protons or ions with sufficiently high energy should generate a large number of neutrons on interacting with a heavy target. Facilities which function according to this principle are said to be electronuclear facilities. The accelerator must be a high-current accelerator in order to produce more neutrons, and for this reason the target is a complicated technical system. An advantage of electronuclear facilities over conventional nuclear reactors is that there is no possibility of reactivity accidents.

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confidence: 99%

Analysis of the main nuclear-physical characteristics of the interaction of proton beams with heavy metal targets

et al. 2008

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“…In paper [24] (R.G. Vasilkov et al) for a large natural uranium target with a mass of about 3.5 t (due to asymmetric beam input, the effective mass was about 7 t), the fission total number of 18.5 ± 1.7 per 1 proton with an energy of 0.66 GeV was obtained.…”

Section: Estimation Of the Beam Power Gainmentioning

confidence: 98%

“…Using these results from the paper [24], the beam power gain values for the TA Quinta were extrapolated [14] for a quasi-infinite uranium assembly in which all the generated neutrons are completely utilized (see the values G ∞ in the Table 5).…”

Section: Estimation Of the Beam Power Gainmentioning

confidence: 99%

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Experimental Studies of the Nuclear-Physical Characteristics of the Extended Uranium Target Irradiated by Relativistic Protons, Deutrons and 12c Nuclei

Zhadan¹,

Sotnikov²,

Voronko³

et al. 2020

Problems of Atomic Science and Technology

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In 2011-2017 in the framework of the international collaboration project “Energy and Transmutation of RAW”, a series of experimental studies on the deep subcritical uranium assembly QUINTA were carried out. The massive uranium target (512 kg of natU) was irradiated with 0.66 GeV proton, deuterons and 12C nuclei (1 to 4 AGeV) from the Phasotron and Nuclotron accelerators (JINR, Dubna). The main results of experimental studies carried out with the participation of the Kharkov group of collaboration are presented.

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“…The use of proton beams for energy production in accelerator-driven systems (ADS) was extensively investigated [1]- [3] and the general opinion is that the optimal energy of proton beam lies in the range 1-3 GeV. The possibility to use heavy-ion beams for ADS was less analyzed and the conclusions of authors are contradictory [4]- [5].…”

Section: Introductionmentioning

confidence: 99%

Study of neutron spectra in extended uranium target. New experimental data

Paraipan

2017

EPJ Web Conf.

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Abstract. The spatial distribution of neutron fluences in the extended uranium target ("Quinta" assembly) irradiated with 0.66 GeV proton, 4 AGeV deuteron and carbon beams was studied using the reactions with different threshold energy (E th ). The data sets were obtained with 59 Co samples. The accumulation rates for the following isotopes: 60 Co (E th 0 MeV), 59 Fe (E th 3 MeV), 58 Co (E th 10 MeV), 57 Co (E th 20 MeV), 56 Co (E th 32 MeV), 47 Sc (E th 55 MeV) , and 48 V (E th 70 MeV) were measured with HPGe spectrometer. The experimental accumulation rates were compared with the predictions of the simulations with Geant4 code. Substantial difference between the reconstructed and the simulated data for the hard part of the neutron spectrum was analyzed.

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Neutron multiplication in uranium bombarded with 300?660-MeV protons

Cited by 7 publications

References 9 publications

Analysis of the main nuclear-physical characteristics of the interaction of proton beams with heavy metal targets

Analysis of the main nuclear-physical characteristics of the interaction of proton beams with heavy metal targets

Experimental Studies of the Nuclear-Physical Characteristics of the Extended Uranium Target Irradiated by Relativistic Protons, Deutrons and 12c Nuclei

Study of neutron spectra in extended uranium target. New experimental data

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