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On The Photofission Cross Sections Near Threshold Of Nuclei In The Region Of The Very Heavy Elements
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Book Synopsis On the Photofission Cross Sections Near Threshold of Nuclei in the Region of the Very Heavy Elements by : Kenneth M. Clarke
Download or read book On the Photofission Cross Sections Near Threshold of Nuclei in the Region of the Very Heavy Elements written by Kenneth M. Clarke and published by . This book was released on 1958 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variations in the photofission cross section near ''threshold'' with initial kind of nucleus were investigated for seven spheroidal nuclei in the region of atomic numbers 90, 92, 93. The photofission cross sections at the two discrete energies 6.14 and 7.0 Mev were determined for the following even-even nuclides: Th-232, U-234, U-236, and U-238; and also the odd-A nuclides. U-233, U-235 and Np-237. This problem was suggested partly by the qualitative proposals of A. Bohr concerning odd-parity states and low energy photofission and partly by the results of betatron studies at low energies on the very heavy elements.
Book Synopsis ON THE PHOTOFISSION CROSS SECTIONS NEAR THRESHOLD OF NUCLEI IN THE REGION OF THE VERY HEARY ELEMENTS (thesis). by :
Download or read book ON THE PHOTOFISSION CROSS SECTIONS NEAR THRESHOLD OF NUCLEI IN THE REGION OF THE VERY HEARY ELEMENTS (thesis). written by and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Variations in the photofission cross section near ''threshold'' with initial kind of nucleus were investigated for seven spheroidal nuclei in the region of atomic numbers 90, 92, 93. The photofission cross sections at the two discrete energies 6.14 and 7.0 Mev were determined for the following even-even nuclide . Th/sup 232/, U/sup 234/, U/;sup 236/, and U/sup 238/; and also the odd- A nuclides. U/sup 233/, U/sup 235/ and Np/sup 237/. Nuclear excitation of the target nuclei was achieved via gamma rays from nuclear capture of protons on fluorine. Protons of 1.380- and 3.645-Mev energy impinged on a thick CaF/sub 2/ target. The highenergy quanta of 5.14, 6.91, and 7.12 Mev so obtained represent the well-known ground state transitions in O/sup 16/, whose relative intensities change with bombarding energy of the proton. The fission counting was done in a double-region ionization chamber of 2 pi geometry. The heavy-element samples were nearly uniform oxide deposits of about one mg/cm/sup 2/, on platinum. Employing the known thick target relative gamma-ray intensity ratio, I(6.91 + 7.12)/I(6.14), plus the measured gamma flux and fission counting yield at each of the two above proton energies, the ( gamma , fission) cross sections at 6.14 snd 7.0 Mev were calculated. The ( gamma , fission) cross sections for Th/sup 232/ and U/sup 238/ are greater at 6.0 Mev than at 7.0 Mev, as indicated by earlier betatron results. U/sup 236/ also exhibits a strong resonance at about 6.0 Mev. However, the other even-even uranium isotope investigated, U/sup 234/, does not show this behavior. Its ( gamma , fission) cross section appears to be increasing monotonically with energy between 6.0 and 7.0 Mev. The odd-A uranium isotopes U/sup 233/ and U/sup 235/ also do not show any unusual behavior in this energy interval. The ( gamma , fission) cross section for U/sup 234/ appears to be essentially constant, which again is a confirmation of earlier betatron studies. For U/sup 233/ the cross section is increasing with energy. The one oddproton nuclide examined, Np/sup 237/ appears also to exhibit a resonance behavior at or about 6.0 Mev. Experimental results are correlated with existing information on low-energy photofission and other nuclear data to explain tentatively the small bumps or resonances in the photofission excitation curves. (auth).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photofission and Total Photoabsorption Cross Sections at the Shadowing Effect Energy Region by :
Download or read book Photofission and Total Photoabsorption Cross Sections at the Shadowing Effect Energy Region written by and published by . This book was released on 2006 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Isotopic Power Sources ... written by and published by . This book was released on 1961 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalog of Technical Reports by : United States. Dept. of Commerce. Office of Technical Services
Download or read book Catalog of Technical Reports written by United States. Dept. of Commerce. Office of Technical Services and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photonuclear Reactions by : International Atomic Energy Agency
Download or read book Photonuclear Reactions written by International Atomic Energy Agency and published by . This book was released on 1964 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Threshold Photoneutron Cross Sections for Medium and Heavy Nuclei by : Robert Joseph Baglan
Download or read book Threshold Photoneutron Cross Sections for Medium and Heavy Nuclei written by Robert Joseph Baglan and published by . This book was released on 1970 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Accelerator Health Physics by : H. Wade Patterson
Download or read book Accelerator Health Physics written by H. Wade Patterson and published by Elsevier. This book was released on 2012-12-02 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerator Health Physics tackles the importance of health physics in the field of nuclear physics, especially to those involved with the use of particle accelerators. The book first explores concepts in nuclear physics, such as fundamental particles, radiation fields, and the responses of the human body to radiation exposure. The book then shifts to its intended purpose and discusses the uses of particle accelerators and the radiation they emit; the measurement of the radiation fields - radiation detectors, the history, design, and application of accelerator shielding; and measures in the implementation of a health physics program. The text is recommended for health physicists who want to learn more about particle accelerators, their effects, and how these effects can be prevented. The book is also beneficial to physicists whose work involves particle accelerators, as the book aims to educate them about the hazards they face in the workplace.
Book Synopsis The Nuclear Fission Process by : Cyriel Wagemans
Download or read book The Nuclear Fission Process written by Cyriel Wagemans and published by CRC Press. This book was released on 1991-09-20 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides a comprehensive review of knowledge regarding nuclear fission from both the purely scientific and practical points of view. Topics discussed include fission barriers, spontaneous fission, neutron-induced fission cross-sections, photon- and electron-induced fission, charged particle induced fission fragment angular momentum and ternary fission. The characteristics of other reaction products are also discussed. Contributed articles from several distinguished nuclear scientists guarantee adequate treatment of some of the specialized research fields included in the text. Intended primarily as an introduction to nuclear fission for graduate students, this book will also provide useful information for nuclear physicists involved with research or teaching.
Book Synopsis High Energy Nuclear Reactions by : Jerome Hudis
Download or read book High Energy Nuclear Reactions written by Jerome Hudis and published by . This book was released on 1960 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The literature has been searched for references pertaining to high energy reactions of interest to nuclear chemists. Nuclear Science Abstracts was the main source of references and wherever possible the complete abstract was retained.
Download or read book TID. written by and published by . This book was released on 1960 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Nuclear Fission by : Robert Vandenbosch
Download or read book Nuclear Fission written by Robert Vandenbosch and published by Elsevier. This book was released on 2012-12-02 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Fission provides a comprehensive account of nuclear fission. This book is organized into 14 chapters. Chapter I introduces and discusses the discovery of fission, followed by a treatment of transition nucleus in Chapters II to VIII. Chapter IX deals with the theories of mass and energy distributions. The kinetic energy release in fission is described in Chapter X, while the distribution of mass and charge in fission is considered in Chapter XI. Chapters XII and XIII consider the emission of neutrons and ? rays from fission. Detailed studies of the ? particles accompanying fission are covered in the last chapter. This volume is intended for students, but is also valuable to research scientists interested in the physics and chemistry of fission.
Download or read book OTS Selective Bibliography written by and published by . This book was released on with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
