Measurement of sub-Coulomb-barrier charged particles emitted from aluminum and titanium bombarded by 15-MeV neutrons. [Cross sections]
Cross sections for (n,xp), (n,xd), and (n,x..cap alpha..) reactions induced by 15-MeV neutrons on /sup 27/Al, /sup 46/Ti, and /sup 48/Ti were measured with a quadrupole spectrometer. Particles with energies as low as 800 keV were detected. Large sub-Coulomb-barrier peaks are found in the proton spectra from /sup 27/Al and /sup 46/Ti, but not from /sup 48/Ti; alpha-particle and deuteron spectra do not show such a peak. The presence or absence of such a peak is found to be related to the importance of the (n,n'p) reaction for a given isotope. Enhancement of the total proton-production cross section by almost a factor of 2 through such reactions is found for /sup 27/Al and /sup 46/Ti. 9 figures, 1 table.
- Research Organization:
- Univ. of California, Livermore
- OSTI ID:
- 7120117
- Journal Information:
- Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 62:2; ISSN NSENA
- Country of Publication:
- United States
- Language:
- English
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ALUMINIUM 27 TARGET
BARYON REACTIONS
BARYONS
CHARGED PARTICLES
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DEUTERONS
DIRECT REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
FAST NEUTRONS
FERMIONS
HADRON REACTIONS
HADRONS
KINETICS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
NEUTRON REACTIONS
NEUTRONS
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
PROTONS
REACTION KINETICS
SPECTRA
STATISTICAL MODELS
TARGETS
TITANIUM 46 TARGET
TITANIUM 48 TARGET