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Few Group Representation Of The Energy Spectra Of Delayed Neutrons
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Book Synopsis Few-group Representation of the Energy Spectra of Delayed Neutrons by :
Download or read book Few-group Representation of the Energy Spectra of Delayed Neutrons written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of delayed neutrons in reactor calculations has been well established. A recent evaluation of delayed neutron data has resulted in the compilation of a reference library containing emission probabilities, Pn's, and energy spectra for approx. 272 individual precursor nuclides. The library may be used to calculate aggregate spectra and total delayed neutron yields. 10 refs., 1 fig., 1 tab.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Energy Spectrum of the Delayed Neutrons from O17 by : Evans Hayward
Download or read book The Energy Spectrum of the Delayed Neutrons from O17 written by Evans Hayward and published by . This book was released on 1949 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technique for the Identification of Dominant Delayed Neutron Precursors by :
Download or read book Technique for the Identification of Dominant Delayed Neutron Precursors written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique for the identification of delayed neutron precursors has been developed based on the product of cumulative yield and probability of neutron emission. The motivation behind this work is to fix the decay constants of delayed neutrons to those of the dominant delayed neutron precursors. The desirability of identifying a single set of decay constants that would apply to all fissionable isotopes and be independent of the neutron energy spectrum has been addressed by several authors. The main advantages of a fixed-decay constant representation are simplifying the analysis of epithemal and fast reactors with multiple fissioning isotopes, and improving the fit to experimental data while preserving the inferred positive reactivity scale associated with the original six-group representation. It is well known that 27 1 delayed neutron precursors exist, but only a select number of those precursors contribute significantly to the decay of delayed neutron. Using data compiled by England and Rider, which lists fission yield and probability of neutron emission values for the 27 1 known delayed neutron precursors in 32 fissioning systems, thirteen precursors were identified that are consistently dominant for alI fissioning systems.
Book Synopsis Few Group Constants for Delayed Neutrons by : Lionel Friedman
Download or read book Few Group Constants for Delayed Neutrons written by Lionel Friedman and published by . This book was released on 1956 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reduced Delayed Neutron Group Representations by : R. E. Skinner
Download or read book Reduced Delayed Neutron Group Representations written by R. E. Skinner and published by . This book was released on 1959 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of Los Alamos Research by : Los Alamos National Laboratory
Download or read book Publications of Los Alamos Research written by Los Alamos National Laboratory and published by . This book was released on 1987 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Neutron Reduced Groups by Least Squares by : Thomas E. Springer
Download or read book Delayed Neutron Reduced Groups by Least Squares written by Thomas E. Springer and published by . This book was released on 1964 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Obdachlosigkeit written by and published by . This book was released on 1971 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Neutrons by : George Robert Keepin
Download or read book Delayed Neutrons written by George Robert Keepin and published by . This book was released on 1955 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review is given of existing measurements as of October 1955 on the properties of delayed neutrons from various fissionable isotopes. The relation of these measurements to current theory and practice is discussed.
Book Synopsis Transactions of the American Nuclear Society by : American Nuclear Society
Download or read book Transactions of the American Nuclear Society written by American Nuclear Society and published by . This book was released on 1989 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Neutrons from Fissionable Isotopes of Uranium, Plutonium, and Thorium by : George Robert Keepin
Download or read book Delayed Neutrons from Fissionable Isotopes of Uranium, Plutonium, and Thorium written by George Robert Keepin and published by . This book was released on 1957 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Validation of Aggregate Delayed Neutron Spectra Calculated from Precursor Data by :
Download or read book Validation of Aggregate Delayed Neutron Spectra Calculated from Precursor Data written by and published by . This book was released on 1989 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive reference library of delayed neutron data has been compiled which contains fission yields and branchings, delayed neutron emission probabilities, and spectra for 271 precursors. These data have been used to calculate the aggregate behavior of delayed neutrons following a fission event in 43 fissioning systems. Least-squares techniques were used to produce fitted decay constants and abundances in the conventional six-group formalism from these calculated activity curves. A consistent set of six-group spectra have also been calculated for each of the fissioning systems. Recent measurements at the University of Lowell have produced measured energy spectra for delayed neutrons following the thermal fission (T) of 235U and 239Pu, and the fast fission (F) of 238U. These measured spectra provide data that may be used to validate the precursor data base and the fitted six-group data. This summary presents results of this validation effort. Both the individual precursor data and the six-group data have been used to calculate aggregate equilibrium spectra for 235U(T), 238U(F), and 239Pu(T) via summation techniques. The important precursors in each case are identified, and the status of their data reviewed. 8 refs., 3 figs., 3 tabs.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 1534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Activation Analysis by : Zeev Alfassi
Download or read book Activation Analysis written by Zeev Alfassi and published by CRC Press. This book was released on 1990-01-05 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely publication covers prompt measurements as well as delayed activation measurements used in chemical analysis of the elements. It describes the various possibilities of activation: neutrons, charged ions, and photons. Also discussed are the advantages and disadvantages of each activation method. These volumes are important for those in geology, archaeology, biology, analytical chemistry, radioanalytical and nuclear chemistry, the semiconductor industry, and others.
Book Synopsis The Determination of the Ranges of the Fission Fragments Emitting Delayed Neutrons Chemical Identification of the 4.51s Delayed Neutron Activity by : N. Sugarman
Download or read book The Determination of the Ranges of the Fission Fragments Emitting Delayed Neutrons Chemical Identification of the 4.51s Delayed Neutron Activity written by N. Sugarman and published by . This book was released on 1946 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Data for Science and Technology by : K.H. Bockhoff
Download or read book Nuclear Data for Science and Technology written by K.H. Bockhoff and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1049 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International Conference, Antwerp, Belgium, September 6-10, 1982
