Spallation-Fission Competition in Heaviest Elements; Helium IonInduced Reactions in Plutonium Isotopes

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Excitation functions have been determined for the spallation and fission reactions induced in plutonium isotopes by 20 to 50 Mev helium ions. The method employed consisted of cyclotron bombardments of plutonium oxide followed by the chemical isolation and alpha or beta counting of radioactive reaction products. Formation cross sections are given where possible for the curium and americium spallation products corresponding to ({alpha},n), ({alpha},2n), ({alpha},3n), ({alpha},4n), ({alpha}5n), ({alpha},p), ({alpha},pn or d), ({alpha},p2n or t), and ({alpha},p3n) reactions in Pu{sup 238} , Pu{sup 239}, and Pu{sup 242}. Fission yield curves and fission cross sections for Pu{sup 238} and Pu{sup 239} serve ... continued below

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Glass, Richard A.; Carr, Robert J.; Cobble, James W. & Seaborg,Glenn T. June 1, 1956.

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Excitation functions have been determined for the spallation and fission reactions induced in plutonium isotopes by 20 to 50 Mev helium ions. The method employed consisted of cyclotron bombardments of plutonium oxide followed by the chemical isolation and alpha or beta counting of radioactive reaction products. Formation cross sections are given where possible for the curium and americium spallation products corresponding to ({alpha},n), ({alpha},2n), ({alpha},3n), ({alpha},4n), ({alpha}5n), ({alpha},p), ({alpha},pn or d), ({alpha},p2n or t), and ({alpha},p3n) reactions in Pu{sup 238} , Pu{sup 239}, and Pu{sup 242}. Fission yield curves and fission cross sections for Pu{sup 238} and Pu{sup 239} serve to define the characteristics of the ({alpha},f) reaction for plutonium isotopes. Chemical procedures are outlined for the separation of both spallation and fission product elements in a sequence of operations performed on the entire dissolved target.

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  • Report No.: UCRL--3437
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.2172/915452 | External Link
  • Office of Scientific & Technical Information Report Number: 915452
  • Archival Resource Key: ark:/67531/metadc878415

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  • June 1, 1956

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 3, 2016, 8:01 p.m.

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Glass, Richard A.; Carr, Robert J.; Cobble, James W. & Seaborg,Glenn T. Spallation-Fission Competition in Heaviest Elements; Helium IonInduced Reactions in Plutonium Isotopes, report, June 1, 1956; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc878415/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.