Gamma Ray Production Cross Sections for the Interactions of 14.9 MeV Neutrons with C, Al, V, Fe and Nb at 90 Degrees PDF Download
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Author: International Atomic Energy Agency
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ISBN:
Category : Aluminum
Languages : en
Pages : 32
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Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 32
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Author: Tang Lin
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Category :
Languages : en
Pages :
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Author: Tang Lin
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Category :
Languages : en
Pages : 32
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Author: TANG. LIN
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Category :
Languages : en
Pages :
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Author: R. L. Bywater
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Category : Gamma rays
Languages : en
Pages : 19
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Author:
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Category :
Languages : en
Pages : 38
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The initial purpose of this experiment was to provide a consistent data base of neutron-induced gamma-ray production cross sections over a large energy range for use in estimating elemental composition of the martian surface by observing gamma rays produced by cosmic ray interactions on the planet's surface [Bo02]. However, these data should be useful for other projects such as oil-well logging, accelerator transmutation of nuclear waste, shielding calculations, gamma-ray heating for nuclear reactors and verification of nuclear model calculations and databases. The goal of the measurements was to collect data on the strongest gamma rays from many samples of interest. Because of the available beam time this meant that many of the measurcments were rather short. Despite the short running time the large samples used and the good beam intensity resulted in very satisfactory results. The samples, chosen mainly as common constituents of rock and soil and measured in the same few week period, include: B &, BN, C, Al, Mg, Si, S, Cay Ti, Cr, Mn, and Fe. Be was also used as a neutron scatterer that only produces one gamma ray (478 keV from 7Li) with appreciable intensity. Thus Be can serve as a measure of neutron-induced backgrounds. In this first paper we present results for Fe.
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Category :
Languages : en
Pages :
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Author: Victor J. Orphan
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Category :
Languages : en
Pages : 182
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The Linac time-of-flight technique has been used to measure the differential gamma-ray production cross sections for neutron interactions with natural Fe and Al in the neutron energy range 0.9 to 17 MeV. Ring-shaped scattering samples were placed at the terminus of a 51-meter neutron flight path at the Gulf Radiation Technology Linac facility. The gamma rays from (n, x gamma) reactions were detected with an 80-cc Ge(Li) detector placed on the centerline of the flight path so as to observe gamma rays emitted from the samples at an angle of about 125 degrees with respect to the incident neutron beam. This angle minimized the effect of gamma-ray anisotropy on the determination of the angle-integrated cross section. (Author).
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Category :
Languages : en
Pages : 30
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Author:
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Category : Neutron counters
Languages : en
Pages : 8
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