Energy-Dependent Multiplicities of Continuum <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>γ</mi></math></span> Rays

J. O. Newton; I. Y. Lee; R. S. Simon; M. M. Aleonard; Y. El Masri; F. S. Stephens; R. M. Diamond

doi:10.1103/PhysRevLett.38.810

Energy-Dependent Multiplicities of Continuum $γ$ Rays

J. O. Newton, I. Y. Lee, R. S. Simon, M. M. Aleonard, Y. El Masri, F. S. Stephens, and R. M. Diamond

Phys. Rev. Lett. 38, 810 – Published 11 April 1977

Abstract

Multiplicities as a function of $γ$ -ray energy have been measured for continuum $γ$ ray spectra produced in argon reactions at several bombarding energies on various targets. With the heavier systems there exist regions in the spectra that have particularly high multiplicites which can be associated with the yrast (collective) cascade. The results suggest that the angular momentum in the $γ$ -ray cascade is limited by $α$ emission for $Z ≲ 60$ and by fission for $Z ≳ 60$ .

Received 17 January 1977

DOI:https://doi.org/10.1103/PhysRevLett.38.810

Authors & Affiliations

J. O. Newton^*, I. Y. Lee, R. S. Simon^†, M. M. Aleonard^‡, Y. El Masri^§, F. S. Stephens, and R. M. Diamond

Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720

^*Nuclear Physics Department, The Australian National University, Canberra, Australian Capital Territory 2600, Australia.
^†On leave from Sektion Physik der Ludwig-Maximilians-Universität München, 8046 Garching, Germany; sponsored by the Bundesministerium für Forschung und Technologie.
^‡On leave from Centre d'Etudes Nucléaires de Bordeaux-Gradignan, Domaine du Haut-Vigneau, 33170 Gradignan, France.
^§On leave from Institut de Physique Corpusculaire, B-1348 Louvain-la-Neuve, Belgium.