Excitation Functions for Spallation Products and Fission Isomers in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Np</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>237</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mrow><msup><mrow><mo>(</mo><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mo>,</mo><mi>x</mi><mi>n</mi><mo>)</mo></mrow><mrow><mn>2</mn><mn>4</mn><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msup></mrow></math></span> Am Reactions

Alain Fleury; F. H. Ruddy; M. N. Namboodiri; John M. Alexander

doi:10.1103/PhysRevC.7.1231

Excitation Functions for Spallation Products and Fission Isomers in ${}^{237}{Np} {({}^{4}{He}, x n)}^{241 - x}$ Am Reactions

Alain Fleury, F. H. Ruddy, M. N. Namboodiri, and John M. Alexander

Phys. Rev. C 7, 1231 – Published 1 March 1973

Abstract

Cross sections as a function of energy (19-46 MeV) have been measured for the following products from the reactions of ${}^{4}{He}$ with ${}^{237}{Np}$ : ${}^{237 g}{Am}$ , ${}^{238 g}{Am}$ , ${}^{238 m}{Am}$ , ${}^{239 g}{Am}$ , ${}^{239 m}{Am}$ , ${}^{240 g}{Am}$ . The prompt fission and total reaction cross sections have also been determined from 19 to 23 MeV. Isomer ratios as a function of excitation energy are presented for several fission isomers.

Received 13 October 1972

DOI:https://doi.org/10.1103/PhysRevC.7.1231

Authors & Affiliations

Alain Fleury

Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11790
Centre d'Etudes Nucléaires de Bordeaux-Gradignan, Gradignan, France

F. H. Ruddy^*, M. N. Namboodiri^†, and John M. Alexander

Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11790

^*Present address: Nuclear Radiation Center and Department of Chemistry, Washington State University, Pullman, Washington 99163.
^†Present address: Cyclotron Institute, Texas A & M University, College Station, Texas.

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Vol. 7, Iss. 3 — March 1973

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Physical Review C

covering nuclear physics