First experiments on transmutation studies of129I and237Np using relativistic protons of 3.7 GeV

Krivopustov, M.I.; Adam, J.; Bradnová, V.; Brandt, R.; Butsev, V.S.; Golubev, P.; Kalinnikov, V. G.; Karachuk, J. T.; Kulakov, B.A.; Langrock, E.-J.; Modolo, Giuseppe; Ochs, M.; Odoj, R.; Premyshev, A. N.; Pronskich, V. S.; Schmidt, Th.; Stegailov, V. I.; Wan, J.-S.; Zupko-Sitnikov, V.M.

doi:10.1007/bf02034284

Cited by 15 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [11] the results for protons with energy 2.0 GeVtransmutation is 0.13%. In [35,36] at the proton beam with the energy of 3.67 GeV (Nuclotron JINR), lead target (d = 8 cm, l = 20cm, paraffin moderator) transmutation of 129 I was 0.9% (10 mA, 30 days). Grows of transmutation is associated from energy, obviously with increase the yield of spallation neutrons from the target (70 ± 20%) and including -thermal, making the main contribution to the reaction (n,γ) -more than 92%.…”

Section: Thmentioning

confidence: 99%

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

Adam

Chilap

Furman

et al. 2016

Applied Radiation and Isotopes

Self Cite

View full text Add to dashboard Cite

The natural uranium assembly, "QUINTA", was irradiated with 2, 4, and 8 GeV deuterons. The 232 Th, 127 I, and 129 I samples have been exposed to secondary neutrons produced in the assembly at a 20-cm radial distance from the deuteron beam axis. The spectra of gamma rays emitted by the activated 232 Th, 127 I, and 129 I samples have been analyzed and several tens of product nuclei have been identified. For each of those products, neutron-induced reaction rates have been determined. The transmutation power for the 129 I samples is estimated. Experimental results were compared to those calculated with well-known stochastic and deterministic codes.

show abstract

Section: Thmentioning

confidence: 99%

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

Adam

Chilap

Furman

et al. 2016

Applied Radiation and Isotopes

Self Cite

View full text Add to dashboard Cite

show abstract

“…Neutron capture or neutron induced fission reactions are the most efficient way to transmute long-lived isotopes into stable or short-lived elements. Although, both processes occur in a reactor neutron spectrum, the necessity of a hard neutron spectrum combined with controllable criticality leads to the use of ADSystem [1][2][3][4][5][6][7]. A detailed engineering design of an ADSystem requires a performance optimization in terms of neutron production as well as an assessment of the radiation field intensity.…”

Section: Introductionmentioning

confidence: 99%

Hadron multiplicity studies on a combined Pb/U-blanket spallation source: Experimental and simulation benchmark analysis

Stoulos

Fragopoulou

Manolopoulou

et al. 2009

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

“…They studied the transmutation capacity of thermal neutrons, produced by 1 GeV protons interacting with a lead target within an extended subcritical nuclear power plant. Our team has backed their theoretical approach with experiments and published a series of papers on the transmutation of 129 I, 237 Np, nat U, and stable 139 La in recent years [4][5][6][7][8]. We used a small metallic target system surrounded by 6 cm paraffin as partial moderator irradiated with low-intensity relativistic proton beams of the Synchrophasotron at the Laboratory of High Energies, Joint Institute for Nuclear Research (JINR), Dubna, in Russia.…”

Section: Introductionmentioning

confidence: 99%

Transmutation of²³⁹Pu and other nuclides using spallation neutrons produced by relativistic protons reacting with massive U- and Pb-targets

Brandt¹,

Westmeier²,

Odoj³

et al. 2002

Radiochimica Acta

Self Cite

View full text Add to dashboard Cite

Experimental studies on the transmutation of some long-lived radioactive waste nuclei, such as 129 I, 237 Np, and 239 Pu, as well as on natural uranium and lanthanum were carried out at the Synchrophastron of the Laboratory for High Energies at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. The radioactive targets (I, Np and Pu) were contained in weld-sealed aluminium holders produced by the Institute of Physics and Power Engineering, Obninsk, Russia. Spallation neutrons were produced by relativistic protons with energies in the range of 0.5 GeV ≤ E p ≤ 1.5 GeV interacting with 20 cm long uranium or lead target stacks. The metallic targets were surrounded by 6 cm thick paraffin moderators. The uranium and lanthanum samples were positioned on the outside of the moderator surface and typically contained approximately 0.5 to 1.0 gram of uranium or lanthanum. The highest fluence of spallation neutrons was observed in the region of 5 to 10 cm downstream the entrance of the primary

show abstract

First experiments on transmutation studies of129I and237Np using relativistic protons of 3.7 GeV

Cited by 15 publications

References 5 publications

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

Hadron multiplicity studies on a combined Pb/U-blanket spallation source: Experimental and simulation benchmark analysis

Transmutation of²³⁹Pu and other nuclides using spallation neutrons produced by relativistic protons reacting with massive U- and Pb-targets

Contact Info

Product

Resources

About

First experiments on transmutation studies of129I and237Np using relativistic protons of 3.7 GeV

Cited by 15 publications

References 5 publications

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

Hadron multiplicity studies on a combined Pb/U-blanket spallation source: Experimental and simulation benchmark analysis

Transmutation of239Pu and other nuclides using spallation neutrons produced by relativistic protons reacting with massive U- and Pb-targets

Contact Info

Product

Resources

About

Transmutation of²³⁹Pu and other nuclides using spallation neutrons produced by relativistic protons reacting with massive U- and Pb-targets