AVERAGE RADIATIVE CAPTURE CROSS SECTIONS FOR 7- TO 170-kev NEUTRONS

Journal Article · Sat Apr 01 04:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.122.182· OSTI ID:4029584

Gibbons, J H; Macklin, R L; Miller, P D; Neiler, J H

Measurements of neutron radiative capture cross sections in the kev region were made using fast (millimicrosecond) time-of-flight techniques and a large liquid scintillator tank. Two series of measurements were completed on a number of nuclides. These are determinations of (1) cross sections relative to that of indium at 30 kev and at 65 kev for 49 elements, and (2) cross sections as a function of neutron energy for the following nuclei: Br, Nb, Pd, Ag, Cd, In, Sb, I, Pr, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ta, W, Pt, and Au. Curve fits, using the statistical model, were obtained for Br, Nb, Ag, In, Sb, I, Pr, Tb, Ho, Tm, Lu, Ta, and Au. The results demonstrate the presence of the 2p giant resonance near A = 100 predicted by the optical model. The average nuclear parameters obtained are in good agreement with recent low-energy total cross- section results, but are in poor agreement with earlier results. Possible reasons for these disagreements are discussed. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• NSA Number: NSA-15-016485
• OSTI ID: 4029584
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 122; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANTIMONY
BROMINE
CADMIUM
CAPTURE
COLLECTIVE MODEL
CROSS SECTIONS
DIAGRAMS
DYSPROSIUM
ENERGY
ENERGY RANGE
ERBIUM
EXCITATION
GADOLINIUM
GAMMA RADIATION
GOLD
HOLMIUM
INDIUM
IODINE
LIQUIDS
LUTETIUM
MEASURED VALUES
NEUTRON SPECTROMETERS
NEUTRONS
NIOBIUM
NUCLEAR MODELS
NUCLEI
OPTICAL MODEL
PALLADIUM
PHOSPHORS
PHYSICS
PLATINUM
PRASEODYMIUM
RESONANCE
SAMARIUM
SCINTILLATION COUNTERS
SILVER
STANDARDS
STATISTICS
TANTALUM
TERBIUM
THULIUM
TUNGSTEN
VELOCITY
YTTERBIUM