Published 1989 | Version v1
Book Metadata-only

Fission in the astrophysical r-process

Creators

  • 1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  • 2. Univ. of Oklahoma, Norman (United States)

Description

Areas in the nuclear chart where neutron-induced and β--delayed fission are of importance are identified and methods to predict their values are discussed. Presently available theoretical fission barrier heights seem to over-estimate both processes, in comparison to experimental information. Therefore, a judgment of the extent to which they affect r-process calculations can only be preliminary. The authors expect that the influence on the chronometer ratios 232Th/238U and 235U/238U is small. Whether nuclei heavier than Z = 100 can be produced in the r-process can only be decided after calculations with improved mass formulas and fission barrier heights

Additional details

Publishing Information

Publisher
American Nuclear Society, Inc.
Imprint Place
La Grange Park, IL (United States)
Imprint Title
Fifty years with nuclear fission. Volume 2
Imprint Pagination
493 p.
Journal Page Range
p. 592-600.

Conference

Title
Fifty years with nuclear fission.
Dates
25-28 Apr 1989.
Place
Gaithersburg, MD (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23023465
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALPHA DECAY; BETA DECAY; CALCULATION METHODS; CAPTURE; ELEMENT ABUNDANCE; EXCITED STATES; FISSION; FISSION BARRIER; GALACTIC EVOLUTION; MASS FORMULAE; NEUTRON REACTIONS; NUCLEOSYNTHESIS; Q-VALUE; R PROCESS; SOLAR SYSTEM; SPONTANEOUS FISSION; THERMONUCLEAR REACTIONS; TRANS 104 ELEMENTS
Descriptors DEC
BARYON REACTIONS; DECAY; ELEMENTS; ENERGY; ENERGY LEVELS; HADRON REACTIONS; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEON REACTIONS; POTENTIAL ENERGY; QUANTITY RATIO; STAR EVOLUTION; SYNTHESIS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS

Optional Information

Secondary number(s)
CONF-890406--Vol.2.