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Measurement Of Prompt Gamma Ray Energy Distribution And Multiplicity Of U 235 Following Thermal Fission Using Steff
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Book Synopsis Measurement of Prompt Gamma-ray Energy Distribution and Multiplicity of U-235 Following Thermal Fission Using STEFF. by : Elizabeth Murray
Download or read book Measurement of Prompt Gamma-ray Energy Distribution and Multiplicity of U-235 Following Thermal Fission Using STEFF. written by Elizabeth Murray and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measuring the Energies and Multiplicities of Prompt Gamma-ray Emissions from Neutron-induced Fission of 235 U Using the STEFF Spectrometer by : James Ryan
Download or read book Measuring the Energies and Multiplicities of Prompt Gamma-ray Emissions from Neutron-induced Fission of 235 U Using the STEFF Spectrometer written by James Ryan and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Beta- and Gamma-ray Production Due to Thermal-neutron Fission of 235U, Spectral Distributions for Times After Fission Between 2 and 14000 Sec by : Oak Ridge National Laboratory. Neutron Physics Division
Download or read book Delayed Beta- and Gamma-ray Production Due to Thermal-neutron Fission of 235U, Spectral Distributions for Times After Fission Between 2 and 14000 Sec written by Oak Ridge National Laboratory. Neutron Physics Division and published by . This book was released on 1978 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Energies of Gamma-rays Following the Decay of Np-239 and Fission Products of U-235 by : Budi Santoso Sudarsono
Download or read book Measurement of Energies of Gamma-rays Following the Decay of Np-239 and Fission Products of U-235 written by Budi Santoso Sudarsono and published by . This book was released on 1961 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Emission of Prompt Gamma-Rays in Thermal Neutron Fission of U-235 by : S. S. KAPOOR (and RAMANNA (R.))
Download or read book Emission of Prompt Gamma-Rays in Thermal Neutron Fission of U-235 written by S. S. KAPOOR (and RAMANNA (R.)) and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Total Gamma-ray Energy and Multiplicity from the Fission of 252Cf Using STEFF. by : Andrew Joseph Pollitt
Download or read book Measurements of Total Gamma-ray Energy and Multiplicity from the Fission of 252Cf Using STEFF. written by Andrew Joseph Pollitt and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delayed Fission Gamma-ray Characteristics of Th-232 U-233 U-235 U-238 and Pu-239 by :
Download or read book Delayed Fission Gamma-ray Characteristics of Th-232 U-233 U-235 U-238 and Pu-239 written by and published by . This book was released on 2015 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delayed fission gamma-rays play an important role in determining the time dependent ioniz- ing dose for experiments in the central irradiation cavity of the Annular Core Research Reactor (ACRR). Delayed gamma-rays are produced from both fission product decay and from acti- vation of materials in the core, such as cladding and support structures. Knowing both the delayed gamma-ray emission rate and the time-dependent gamma-ray energy spectrum is nec- essary in order to properly determine the dose contributions from delayed fission gamma-rays. This information is especially important when attempting to deconvolute the time-dependent neutron, prompt gamma-ray, and delayed gamma-ray contribution to the response of a diamond photo-conducting diode (PCD) or fission chamber in time frames of milliseconds to seconds following a reactor pulse. This work focused on investigating delayed gamma-ray character- istics produced from fission products from thermal, fast, and high energy fission of Th-232, U-233, U-235, U-238, and Pu-239. This work uses a modified version of CINDER2008, a transmutation code developed at Los Alamos National Laboratory, to model time and energy dependent photon characteristics due to fission. This modified code adds the capability to track photon-induced transmutations, photo-fission, and the subsequent radiation caused by fission products due to photo-fission. The data is compared against previous work done with SNL- modified CINDER2008 [1] and experimental data [2, 3] and other published literature, includ- ing ENDF/B-VII. 1 [4]. The ability to produce a high-fidelity (7,428 group) energy-dependent photon fluence at various times post-fission can improve the delayed photon characterization for radiation effects tests at research reactors, as well as other applications.
Book Synopsis U-235 Gamma Radiation by : R. L. Macklin
Download or read book U-235 Gamma Radiation written by R. L. Macklin and published by . This book was released on 1949 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta and Gamma Decay Heat Measurements Between 0.1s - 50,000s for Neturon Fission of 235U, 238U and 239Pu. Progress Report, June 1, 1992--December 31, 1994 by :
Download or read book Beta and Gamma Decay Heat Measurements Between 0.1s - 50,000s for Neturon Fission of 235U, 238U and 239Pu. Progress Report, June 1, 1992--December 31, 1994 written by and published by . This book was released on 1997 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the investigations reported here, a helium-jet/tape-transport system was used for the rapid transfer of fission products to a low-background environment where their aggregate beta and gamma-ray spectra were measured as a function of delay time after neutron induced fission of 235U, 238U and 239Pu. Beta and gamma-ray energy distributions have been deduced for delay times as short as 0.2 s and extending out to 100,000s. Instrumentation development during the initial phase of the project included: (1) assembly and characterization of a NaI(Tl) spectrometer for determining aggregate gamma-ray energy distributions, (2) development and characterization of a beta spectrometer (having excellent gamma-ray rejection) for measuring aggregate beta-particle energy distributions, (3) assembly and characterization of a Compton-suppressed HPGe spectrometer for determining gamma-ray intensities of individual fission products to deduce fission-product yields. Spectral decomposition and analysis codes were developed for deducing energy distributions from measured aggregate beta and gamma spectra. The aggregate measurements in the time interval 0.2 - 20s after fission are of special importance since in this region data from many short-lived nuclei are missing and summation calculations in this region rely on model calculations for a large fraction of their predicted beta and gamma decay heat energy spectra. Comparison with ENDF/B-VI fission product data was performed in parallel with the measurements through a close collaboration with Dr. T. England at LANL, assisted by one of our graduate students. Such aggregate measurements provide tests of the Gross Theory of beta decay used to calculated missing contributions to this data base. Fission-product yields deduced from the HPGe studies will check the accuracy of the semi-empirical Gaussian dispersion model used presently by evaluators in the absence of measured yields.
Book Synopsis Energy and Time Dependence of Delayed Gammas from Fission by : L. B. Engle
Download or read book Energy and Time Dependence of Delayed Gammas from Fission written by L. B. Engle and published by . This book was released on 1962 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gamma Ray Decay Heat Measurements Following U-238(n,f) and Pu-239(n,f) by : Edward Herbert Seabury
Download or read book Gamma Ray Decay Heat Measurements Following U-238(n,f) and Pu-239(n,f) written by Edward Herbert Seabury and published by . This book was released on 1996 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Statistical Distribution of the Number of Prompt Gamma Rays Emitted in the Fission of 235U by : Chuncheng Ji
Download or read book The Statistical Distribution of the Number of Prompt Gamma Rays Emitted in the Fission of 235U written by Chuncheng Ji and published by . This book was released on 2004 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of the Recent TSF Secondary Gamma-ray Experiment by : F. L. Keller
Download or read book Analysis of the Recent TSF Secondary Gamma-ray Experiment written by F. L. Keller and published by . This book was released on 1958 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of [235]U Content and Flow of UF[6] Using Delayed Neutrons Or Gamma Rays Following Induced Fission by :
Download or read book Measurement of [235]U Content and Flow of UF[6] Using Delayed Neutrons Or Gamma Rays Following Induced Fission written by and published by . This book was released on 1996 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of [235]U Content and Flow of UF[6] Using Delayed Neutrons Or Gamma Rays Following Induced Fission by : David C. Stromswold
Download or read book Measurement of [235]U Content and Flow of UF[6] Using Delayed Neutrons Or Gamma Rays Following Induced Fission written by David C. Stromswold and published by . This book was released on 1996 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gamma-ray Energy Pseudospectra for U235 Fission Products and for Various Times After Fission by : C. F. Ksanda
Download or read book Gamma-ray Energy Pseudospectra for U235 Fission Products and for Various Times After Fission written by C. F. Ksanda and published by . This book was released on 1965 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gamma-ray energy spectrum of U-235 fission products following a nuclear explosion is made up of hundreds of different photon energies whose relative contributions to the spectrum change with time after fission. Gammaradiation attenuation and shielding calculations can be greatly simplified by the use of 'pseudospectra' that closely approximate the attenuation obtained with the 'true' spectra. A technique for computing pseudospectra weighting fractions to obtain such simplified spectra composed of only 5 representative photon energies is described. Pseudospectra weighting fractions and pseudospectra for air and iron attenuation are presented. A flow chart and an IBM-704 computer program of the technique are also presented, along with the input data and examples of the printed output values. Throughout the time range considered (from 1.7 sec to 301 days after fission), the maximum attenuation error is less than plus or minus 5%. The technique is valid for resolving almost any spectral attenuation data into five or fewer energy components, and may be used to solve problems involving five simultaneous equations in five unknowns with prescribed constraints. (Author).
Book Synopsis Beta and Gamma Decay Heat Measurements Between 0.1s--50,000s for Neutron Fission of {sup 235}U, {sup 238}U and {sup 239}Pu. Final Report, June 1, 1992--December 31, 1996 by :
Download or read book Beta and Gamma Decay Heat Measurements Between 0.1s--50,000s for Neutron Fission of {sup 235}U, {sup 238}U and {sup 239}Pu. Final Report, June 1, 1992--December 31, 1996 written by and published by . This book was released on 1996 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a final reporting on the composition of separate beta and gamma decay heat measurements following neutron fission of 235U and 238U and 239Pu and on cumulative and independent yield measurements of fission products of 235U and 238U. What made these studies unique was the very short time of 0.1 s after fission that could be achieved by incorporating the helium jet and tape transport system as the technique for transporting fission fragments from the neutron environment of the fission chamber to the low-background environment of the counting area. This capability allowed for the first time decay heat measurements to extend nearly two decades lower on the logarithmic delay time scale, a region where no comprehensive aggregate decay heat measurements had extended to. This short delay time capability also allowed the measurement of individual fission products with half lives as short as 0.2s. The purpose of such studies was to provide tests both at the aggregate level and at the individual nuclide level of the nation`s evaluated nuclear data file associated with fission, ENDF/B-VI. The results of these tests are in general quite encouraging indicating this data base generally predicts correctly the aggregate beta and aggregate gamma decay heat as a function of delay time for 235U, 238U and 239Pu. Agreement with the measured individual nuclide cumulative and independent yields for fission products of 235U and 238U was also quite good although the present measurements suggest needed improvements in several individual cases.
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