Published 1991 | Version v1
Book Metadata-only

Charged-particle-emission from highly excited 149Tb* composite nuclei

Creators

  • 1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  • 2. State Univ. of New York, Stony Brook (United States)
  • 3. Lawrence Berkeley Lab., CA (United States)
  • 4. Univ. of Richmond, VA (United States)

Description

The authors studied a series of reactions in reversed kinematics using 86Kr, 98Mo, and 121Sb beams to produce 149Tb* composite nuclei at excitation energies between 135 and 240 MeV. The de-excitation pathways of the hot, high-spin nuclei were probed via measurements of fission (FF), light-charged-particles (LCP), and intermediate-mass-fragment (IMF) emission. Coincidence data between FF-LCP, FF-IMF, LCP-LCP, and LCP-IMF provided distinctions of emission mechanisms, and detailed comparisons of particle spectra with reaction-simulation calculations allowed determination of multiplicities and cross sections for the several emission sources. Multiplicities in the 149Tb* decay channels are compared for various entrance channels to ascertain the roles of energy and spin, and particle-particle correlations are related to the properties of the nuclear evaporation cascades

Additional details

Publishing Information

Publisher
American Chemical Society.
Imprint Place
Washington, DC (United States)
Imprint Title
American Chemical Society, Division of Nuclear Chemistry and Technology
Imprint Pagination
34 p.
Journal Page Range
p. 1, Paper NUCL 3.

Conference

Title
201. American Chemical Society (ACS) national meeting.
Dates
14-19 Apr 1991.
Place
Atlanta, GA (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23009787
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTIMONY 121; CROSS SECTIONS; KRYPTON 86 BEAMS; MEV RANGE 100-1000; MOLYBDENUM 98; MULTIPLICITY; PARTICLE KINEMATICS; TERBIUM 149
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; ANTIMONY ISOTOPES; BEAMS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ENERGY RANGE; EVEN-EVEN NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; ION BEAMS; ISOTOPES; MEV RANGE; MINUTES LIVING RADIOISOTOPES; MOLYBDENUM ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; RARE EARTH NUCLEI; STABLE ISOTOPES; TERBIUM ISOTOPES

Optional Information

Secondary number(s)
CONF-910402--.