Cumulative Yields from the 14-MeV Neutron Fission of 238U PDF Download
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Author: David John Gorman
Publisher:
ISBN:
Category : Fission products
Languages : en
Pages : 196
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Book Description
Author: David John Gorman
Publisher:
ISBN:
Category : Fission products
Languages : en
Pages : 196
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Book Description
Author: Gorman, David John
Publisher: s.l. : s.n.
ISBN:
Category : Fission products
Languages : en
Pages : 196
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Book Description
Author: Ellen Edwards
Publisher:
ISBN:
Category :
Languages : en
Pages : 102
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Book Description
Precisely-known fission yield distributions are used to determine a fissioning isotope and the incident neutron energies in nuclear security applications. 14 MeV neutrons from DT fusion at the National Ignition Facility (NIF) induced fission in depleted uranium (DU) contained in the target assembly hohlraum. The fission yields of Kr isotopes (85m, 87, 88, 89, and 90) were measured relative to the cumulative yield of 88Kr. The fission gas was pumped from the target chamber, collected, and analyzed in the Radiochemical Analysis of Gaseous Samples (RAGS) diagnostic. Isotopes with half-lives ranging 8 s-9 hr can be measured. Kr fission yields have been measured both from the fission of DU in the hohlraum and DU doped into the capsule ablator. Since the mass of U was not known, the relative amounts of Kr isotopes were calculated and compared to existing fission product distribution tables. It was found that measurements can be performed with high precision for isotopes with half lives longer than 4 minutes. A more precise quantification of gas transport needs to be achieved to quantify isotopes with shorter half lives to a precision of the published tables.
Author: Don Edward Adams
Publisher:
ISBN:
Category : Uranium
Languages : en
Pages : 220
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Abstract ([2] leaves) bound in.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Author: Manchery Prabhakara Menon
Publisher:
ISBN:
Category : Nuclear fission
Languages : en
Pages : 308
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Book Description
Abstract ([4] leaves) bound in.
Author: Terry C. Chapman (CAPT, USAF.)
Publisher:
ISBN:
Category : Fission products
Languages : en
Pages :
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Author: Terry C. Chapman
Publisher:
ISBN:
Category : Neutron irradiation
Languages : en
Pages : 79
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Book Description
The yields of 28 mass chains have been measured for fission of U235 and U238 induced by neutrons at four different energies from 6.0 to 9.1 MeV. This is the first experimental measurement where sufficient energy resolution was obtained to observe the effect of the onset of second chance fission in the case of symmetric fission. The Ag111 results are compared with measurements at other neutron energies and with previous theoretical predictions. Several of the nuclide results are presented in graphical form and all nuclide are presented in tabular form, as a function of neutron energy. The mass chains measured range from 84 to 156, and their half-lives range from 18 minutes to 30 years. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Author: United Kingdom Atomic Energy Authority. Research Group
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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