Revised hafnium evaluations for ENDF/B-VI

Conference · Wed Jan 01 04:00:00 EST 1992 · Transactions of the American Nuclear Society; (United States)

OSTI ID:7144602

Wright, R Q ^[1]

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1. Oak Ridge National Lab., TN (United States)

An important application of the element hafnium is its use in control rods in nuclear reactors. For this reason, it is desirable to determine the absorption cross sections of the hafnium isotopes to a high accuracy. This requires that the self-shielded cross sections be determined accurately because the hafnium resonances can be heavily self-shielded. The ENDF/B-V evaluations for natural hafnium and the six hafnium isotopes were completed in 1976. Since 1976, new experimental data have become available. By utilizing these new experimental data, significant improvements in the evaluated nuclear data files for the hafnium isotopes have been achieved. The primary emphasis in this work was placed on the resolved and unresolved resonance regions. but new experimental data were also used to improve the evaluations for energies above the unresolved resonance range.

• OSTI ID: 7144602
• Report Number(s): CONF-920606--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 65
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220100* -- Nuclear Reactor Technology-- Theory & Calculation
ABSORPTION
ACCURACY
BARYONS
CAPTURE
CONTROL ELEMENTS
CONTROL SYSTEMS
CROSS SECTIONS
DATA
DAYS LIVING RADIOISOTOPES
ELEMENTARY PARTICLES
EVALUATED DATA
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HAFNIUM 176
HAFNIUM 177
HAFNIUM 178
HAFNIUM 179
HAFNIUM 180
HAFNIUM ISOTOPES
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR DATA COLLECTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
PHYSICS
RADIOISOTOPES
REACTOR COMPONENTS
REACTOR CONTROL SYSTEMS
REACTOR PHYSICS
RESONANCE
SECONDS LIVING RADIOISOTOPES
SELF-SHIELDING
SHIELDING
SORPTION
STABLE ISOTOPES
THERMAL NEUTRONS
YEARS LIVING RADIOISOTOPES