Review and combination of experimental results for neutron emission per fission of 232Th
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Review and combination of experimental results for neutron emission per fission of 232Th

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Published by Dept. of Energy, Office of Energy Technology, National Laboratory, Neutron Physics Division, for sale by the National Technical Information Service in Oak Ridge, Tenn, Springfield, Va .
Written in English


  • Neutrons

Book details:

Edition Notes

StatementR. Gwin
SeriesORNL/TM ; 6245
ContributionsOak Ridge National Laboratory. Neutron Physics Division
The Physical Object
Paginationiii, 15 p. :
Number of Pages15
ID Numbers
Open LibraryOL14881489M

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The prompt neutron emission in spontaneous fission of Cf has been investigated applying digital signal electronics. The goal was to compare the results of this digital data acquisition and. Excitation functions for inelastic neutron scattering from the keV, the keV, and the – MeV levels in Th have been measured in the energy range – MeV. The experimental results show that the structure in the fission cross section of Th near the fission threshold cannot be adequately interpreted in terms of competition between fission and neutron by: 7.   The preliminary results of experimental data analysis on neutron production in the thin and thick lead targets induced by protons are discussed here. A comparison of the measured neutron production double-differential cross section with the data of KEK, for and GeV, and ITEP, for GeV and GeV, is shown in Figure : Vladimir Yurevich. The results are used in parallel with the measurements of fast-neutron induced fission of \(^{}\)U and spontaneous fission of \(^{}\)Cf to assess the potential of such reactions and.

  Nuclear fission, discovered in [], provides one of the most dramatic examples of a nuclear decay, whereby the nucleus splits preferentially into two smaller fragments releasing a large amount of n is a unique tool for probing the nuclear potential-energy landscape and its evolution, as a function of elongation, mass asymmetry, spin, and excitation energy, from the single Cited by: prompt neutron spectra both the shape and the average multiplicity. • Also, the calculated energy spectra for fixed angles agree rather well with experimentally obtained ones. • There is a minor distinction which is that the calculation (A 2 = 0) gives overestimated value of fission neutron yield as compared with experimental data. Results. In low-energy fission (spontaneous fission, thermal neutron induced fission) the distribution of total neutron emission numbers is Gaussian-like, with centers at the average neutron multiplicity. Very early in the history of fission research it was remarked that the Gaussians are universal, i.e. identical. A survey of theoretical representations of two of the observables in neutron emission in fission is given, namely, the prompt fission neutron spectrum N(E) and the average prompt neutron multiplicity {bar {nu}}{sub p}. Early representations of the two observables are presented and their deficiencies are discussed. This is followed by summaries and some examples of recent theoretical models for Cited by: 8.

21 Summary and Conclusions Correlations between properties of fission fragment and prompt neutrons has been studied in U(n,f) induced by resonance neutrons at GELINA. The TKE dependence of the number of neutrons emitted per fission shows an inverse slope dTKE/dν ~35% smaller than observed in studies of thermal neutron induced fission. STUDY OF SPONTANEOUS FISSION OF CF: STRUCTURE OF NEUTRON-RICH NUCLEI, GAMMA-RAY ANGULAR CORRELATION AND G-FACTOR MEASUREMENTS By Ke Li Dissertation Submitted to the Faculty of the Graduate School of Vanderbilt University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in Physics May, Nashville File Size: 1MB. The paper discusses two techniques for studying the multiplicity spectrum of neutron emission in cold fusion experiments. In the first method the multiplicity distribution of counts in 20 ms time intervals is analysed to give information about the statistics of neutron emission in cold fusion. The results of six such experiments indicate that File Size: KB. Spontaneous fission (SF) is a form of radioactive decay that is found only in very heavy chemical nuclear binding energy of the elements reaches its maximum at an atomic mass number of about 56; spontaneous breakdown into smaller nuclei and a few isolated nuclear particles becomes possible at greater atomic mass numbers.