Fast-neutron interactions with /sup 182/W, /sup 184/W and /sup 186/W

Technical Report · Mon Jun 01 00:00:00 EDT 1981

DOI:https://doi.org/10.2172/6181810· OSTI ID:6181810

Guenther, P T; Smith, A B; Whalen, J F

Neutron total cross sections of /sup 182/W, /sup 184/W and /sup 186/W are measured from approx. = 0.3 to 5.0 MeV at intervals of less than or equal to 50 keV to accuracies of 1 to 3%. Differential neutron elastic- and inelastic-scattering cross sections of the same three isotopes are measured at scattering angles in the range 20 to 160/sup 0/ and at incident-neutron energy intervals of approx. = 100 keV from 1.5 to 4.0 MeV. Approximately thirty scattered-neutron groups are observed for each of the isotopes. Prominent of these are excitations attributed to collective rotational and vibrational bands. The experimental results are interpreted in terms of optical-statistical and coupled-channels models with particular attention to the direct excitation of ground-state-rotational and ..beta..- and ..gamma..-vibrational bands. The strengths of the direct interactions and the magnitudes of the collective deformations are inferred from the interpretations and compared with similar values previously reported elsewhere. The experimental results are used to deduce experimentally-based evaluated data sets for /sup 182/W, /sup 184/W and /sup 186/W over the energy range 0.1 - approx. = 5.0 MeV.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6181810
• Report Number(s): ANL/NDM-56; ON: DE81028481; TRN: 81-015731
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NEUTRON REACTIONS
ELASTIC SCATTERING
INELASTIC SCATTERING
TOTAL CROSS SECTIONS
TUNGSTEN 182
ENERGY LEVELS
TUNGSTEN 182 TARGET
TUNGSTEN 184
TUNGSTEN 184 TARGET
TUNGSTEN 186
TUNGSTEN 186 TARGET
DIFFERENTIAL CROSS SECTIONS
EXCITATION
EXPERIMENTAL DATA
KEV RANGE 100-1000
MEV RANGE 01-10
ROTATIONAL STATES
VIBRATIONAL STATES
BARYON REACTIONS
CROSS SECTIONS
DATA
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITED STATES
HADRON REACTIONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
KEV RANGE
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
SCATTERING
STABLE ISOTOPES
TARGETS
TUNGSTEN ISOTOPES
651825* - Nuclear Properties & Reactions
A=150-189
Experimental- Nuclear Reactions & Scattering- (-1987)
651823 - Nuclear Properties & Reactions
A=150-189
Experimental- Energy Levels & Transitions- (-1987)