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AbstractAbstract
[en] Brief information concerning thorium as an element, its reserves, mining, and use as nuclear fuel, especially in accelerator driven systems and for the production of uranium 233, is presented. (P.A.)
Original Title
Thorium, jaderne palivo budoucnosti
Primary Subject
Secondary Subject
Source
Based on the paper by Dolan, P.: Thorium - the nuclear fuel of the future?, Nuclear Future 2007 No. 2 p. 91-93, as translated by V. Vanek
Record Type
Journal Article
Journal
Energetika (Prague); ISSN 0375-8842;
; v. 57(7); p. 237

Country of publication
ACTINIDE NUCLEI, ACTINIDES, ALPHA DECAY RADIOISOTOPES, BEAMS, ELEMENTS, ENERGY SOURCES, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, FUELS, HEAVY ION DECAY RADIOISOTOPES, HEAVY ION REACTIONS, HEAVY NUCLEI, ISOTOPES, MATERIALS, METALS, NEON 24 DECAY RADIOISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEON BEAMS, PARTICLE BEAMS, RADIOISOTOPES, REACTOR MATERIALS, SPONTANEOUS FISSION RADIOISOTOPES, TARGETS, THORIUM ISOTOPES, TRANSMUTATION, URANIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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Tavares, O.A.P.; Duarte, S.B.; Morcelle, V.; Deppman, A.
Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil)2005
Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil)2005
AbstractAbstract
[en] A new approach to evaluate nuclear photo fissilities at incident photon energies above the pion photoproduction threshold has been recently developed and proved to describe successfully the fissilities of natPb and 232Th target nuclei at energies ∼ 0.2-4.0 GeV. The method is merely a simple, semiempirical description of the photofission reactions in which fissility, f, is governed by two basic quantities, namely, 1) the first-chance fission probability, f-bar1, for the average cascade residual, and 2) the slope, s-bar, of the chance-fission probability associated with the average evaporative sequence of fissionable residuals. In the present work we have extended this approach to analyse photofission data that have been accumulated over the past forty years or so, measured at 1 GeV, for nearly forty target nuclei extending from Ti up to Np. Results have shown that the variation of fissility with Z2/A could be described quite satisfactorily by the proposed model. (author)
Primary Subject
Source
Aug 2005; 7 p; ISSN 0029-3865;
; Also available from ftp://ftp2.biblioteca.cbpf.br/pub/apub/2005/nf/nf_zip/nf01505.pdf; 28 refs., 2 figs., 1 tab.

Record Type
Report
Report Number
Country of publication
ACTINIDE NUCLEI, ACTINIDES, ALPHA DECAY RADIOISOTOPES, BOSONS, CALCULATION METHODS, ELEMENTARY PARTICLES, ELEMENTS, EVEN-EVEN NUCLEI, FISSION, HADRONS, HEAVY ION REACTIONS, HEAVY NUCLEI, ISOTOPES, MESONS, METALS, NUCLEAR REACTIONS, NUCLEI, PHOTONUCLEAR REACTIONS, PSEUDOSCALAR MESONS, RADIOISOTOPES, SPONTANEOUS FISSION RADIOISOTOPES, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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AbstractAbstract
[en] The cross sections for neutron capture and fission of 232Th have been evaluated for ENDF/B-IV
Primary Subject
Source
Magurno, B.A. (ed.); Brookhaven National Lab., Upton, N.Y. (USA); p. 192-206; Apr 1975
Record Type
Report
Report Number
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BARYON REACTIONS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, ELECTROMAGNETIC RADIATION, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HADRON REACTIONS, HEAVY NUCLEI, IONIZING RADIATIONS, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, RADIATIONS, RADIOISOTOPES, TARGETS, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
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AbstractAbstract
[en] An overview of the authors personal view is presented on open questions in regard to still required research and development work for the thorium fuel cycle before its application in a technical-industrial scale may be tackled. For a better understanding, all stations of the back-end of the thorium fuel cycle are briefly illustrated and their special features discussed. They include storage and transportation measures, all steps of reprocessing, as well as the entire radioactive waste treatment. Knowledge gaps are, as far as they are obvious, identified and proposals put forward for additional worthwile investigations. (orig.)
[de]
Es wird eine Darstellung der nach Meinung des Autors noch offenen Fragestellungen im Bereich der Forschung und Entwicklung fuer den Thoriumbrennstoffkreislauf gegeben, bevor eine Umsetzung in den technisch-industriellen Massstab in Angriff genommen werden kann. Zur Veranschaulichung werden alle Stationen der Entsorgung kurz beschrieben und ihre Besonderheiten diskutiert. Sie umfassen Lager- und Transportvorgaenge, die gesamte Wiederaufarbeitung sowie die radioaktive Abfallbehandlung. Kenntnisluecken werden, soweit augenscheinlich, identifiziert und Vorschlaege fuer nuetzliche weiterfuehrende Untersuchungen gemacht. (orig.)Original Title
Wiederaufarbeitung im Thoriumbrennstoffkreislauf
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Secondary Subject
Source
Jan 1984; 91 p
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Report
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AbstractAbstract
No abstract available
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Secondary Subject
Source
(c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CARBON ISOTOPES, DISTRIBUTION, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY ION REACTIONS, HEAVY NUCLEI, ISOTOPES, LIGHT NUCLEI, NUCLEAR FRAGMENTS, NUCLEAR REACTIONS, NUCLEI, RADIOISOTOPES, SPONTANEOUS FISSION RADIOISOTOPES, STABLE ISOTOPES, TARGETS, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
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Ajithkumar, B.P.; Varier, K.M.; Thomas, R.G.; Mahata, K.; John, B.V.; Saxena, A.; Kailas, S.; Rajprakash
DAE-BRNS symposium on nuclear physics: contributed papers. V. 47B2004
DAE-BRNS symposium on nuclear physics: contributed papers. V. 47B2004
AbstractAbstract
[en] The fragment anisotropies of the 13C+232Th system was measured for a range of energies both below and above the barrier
Primary Subject
Source
Singh, P.; Pant, L.M. (Nuclear Physics Div., Bhabha Atomic Research Centre, Mumbai (India)) (eds.); Board of Research in Nuclear Sciences, Dept. of Atomic Energy, Mumbai (India); 660 p; Dec 2004; p. 224-225; 47. DAE-BRNS symposium on nuclear physics; Banaras (India); 6-10 Dec 2004; 7 refs., 2 figs.
Record Type
Book
Literature Type
Conference
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, DISTRIBUTION, ENERGY, EVEN-EVEN NUCLEI, HEAVY ION REACTIONS, HEAVY NUCLEI, ISOTOPES, NUCLEAR FRAGMENTS, NUCLEAR POTENTIAL, NUCLEAR REACTIONS, NUCLEI, POTENTIAL ENERGY, POTENTIALS, RADIOISOTOPES, SPONTANEOUS FISSION RADIOISOTOPES, TARGETS, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] Comprehensive fission measurements, including mass-angle distributions, for the reaction of 32S with the prolate deformed nucleus 232Th at near-barrier energies show two distinct components in both mass and angle; surprisingly, both have characteristics of quasifission. Their relative probabilities vary rapidly with the ratio of the beam energy to the capture barrier, suggesting a relationship with deformation aligned (sub-barrier), or antialigned (above-barrier), configurations at contact
Primary Subject
Source
(c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
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Arruda Neto, J.D.T.; Likhachev, V.P.; Garcia, F.
Proceedings of the 20. Brazilian workshop on nuclear physics1997
Proceedings of the 20. Brazilian workshop on nuclear physics1997
AbstractAbstract
[en] The mean excitation energy E-barx of 232 Th, following photoabsorption in the interval of 40 - 110 MeV, is determined from the nuclear photo fissility measured at Saclay using a novel technique developed at our Laboratory. It is found that E-barx of 2'32 Th is considerably lower than obtained from INC-Monte Carlo calculations which, by their turn, describe fairly well the preequilibrium in heavier actinides. It is suggested that this fact could possibly be associated with a higher nuclear transparency of 232 Th. (author)
Primary Subject
Source
Souza, Sergio R. (ed.); Sociedade Brasileira de Fisica, Sao Paulo, SP (Brazil); 482 p; ISBN 981-02-3429-5;
; 1997; p. 312-316; 20. Brazilian workshop on nuclear physics; Guaratingueta, SP (Brazil); 31 Aug - 4 Sep 1997; 7 refs., 3 figs.

Record Type
Book
Literature Type
Conference
Country of publication
ACTINIDE NUCLEI, ACTINIDES, ALPHA DECAY RADIOISOTOPES, ELEMENTS, EMISSION, EVEN-EVEN NUCLEI, FISSION, HEAVY ION REACTIONS, HEAVY NUCLEI, ISOTOPES, METALS, NUCLEAR REACTIONS, NUCLEI, PHOTONUCLEAR REACTIONS, PHYSICS, RADIOISOTOPES, SECONDARY EMISSION, SPONTANEOUS FISSION RADIOISOTOPES, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] The cross section for the neutron-induced fission of 232Th target nuclei, σf (En), was described within statistical theory. The spectra of the mean multiplicity, v-bar (En), and the mean energy, E-bar(En), of secondary neutrons accompanying 232Th fission induced by neutrons of energy extending up to En = 20 MeV were analyzed on the basis of the chance structure of the cross section.
Primary Subject
Source
Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BARYON REACTIONS, BARYONS, ELEMENTARY PARTICLES, ENERGY RANGE, EVEN-EVEN NUCLEI, FERMIONS, FISSION NEUTRONS, HADRON REACTIONS, HADRONS, HEAVY NUCLEI, ISOTOPES, MATHEMATICAL MODELS, NEUTRONS, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, NUCLEONS, RADIOISOTOPES, SPONTANEOUS FISSION RADIOISOTOPES, TARGETS, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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Thomas, R.G.; Choudhury, R.K.; Nayak, B.K.; Kapoor, S.S.
DAE symposium on nuclear physics: contributed papers. V. 42B1999
DAE symposium on nuclear physics: contributed papers. V. 42B1999
AbstractAbstract
[en] The effect of entrance channel mass asymmetry on the fission fragment angular distribution in heavy ion induced fission reactions of fissile targets for certain barrier energies has been explained by the pre equilibrium fission model. In the present study the available experimental data have been analysed on the basis of the pre equilibrium fission model, incorporating two components of fission events
Primary Subject
Source
Chatterjee, A.; John, Bency (Nuclear Physics Div., Bhabha Atomic Research Centre, Mumbai (India)) (eds.); Department of Atomic Energy, Mumbai (India); 505 p; Dec 1999; p. 214-215; DAE symposium on nuclear physics; Chandigarh (India); 27-31 Dec 1999; 4 refs., 1 fig.
Record Type
Book
Literature Type
Conference
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, DISTRIBUTION, ELECTRIC FIELDS, EVEN-EVEN NUCLEI, HEAVY ION REACTIONS, HEAVY NUCLEI, ISOTOPES, NUCLEAR FRAGMENTS, NUCLEAR REACTIONS, NUCLEI, RADIOISOTOPES, SPATIAL DISTRIBUTION, SPONTANEOUS FISSION RADIOISOTOPES, TARGETS, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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