Analyzing powers of the /sup 6/Li(N(pol),t)/sup 4/He reaction. [0. 2 to 1. 4 MeV]
Conference
·
· Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States)
OSTI ID:7365010
Analyzing powers have been measured for the /sup 6/Li(n Vector, t)/sup 4/He reaction for neutron energies between 0.2 and 1.4 MeV. An energy continuum of neutrons was produced by bombarding a thick lithium metal target with a 3.5-MeV, nanosecond-pulsed proton beam. The partially polarized neutrons emitted at 50/sup 0/ were incident on an evaporated /sup 6/Li metal target. A silicon surface barrier detector was used to measure triton and ..cap alpha..-particle yields as a function of particle energy. Tritons were distinguished from ..cap alpha.. particles with time-of-flight techniques. Yield asymmetries were determined at laboratory angles of 35/sup 0/, 60/sup 0/ and 80/sup 0/ with angular resolutions of +- 5/sup 0/. The ..cap alpha..-particle yield asymmetries were converted to backward angle triton asymmetries, providing data at six angles. Analyzing powers as a function of angle were deduced. Although results are tentative, analyzing powers near 90/sup 0/ and 250 keV are negative (approximately -0.3) while above 700 keV they are large and positive (approximately +0.9) and vary slowly with neutron energy. 4 figures. (auth)
- Research Organization:
- Univ. of Oregon, Eugene
- OSTI ID:
- 7365010
- Conference Information:
- Journal Name: Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) Journal Volume: 425
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
ASYMMETRY
BARYON REACTIONS
BEAMS
CHARGED PARTICLES
DIRECT REACTIONS
DISTRIBUTION
EVEN-EVEN NUCLEI
HADRON REACTIONS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
LITHIUM 6 TARGET
MULTI-NUCLEON TRANSFER REACTIONS
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PICKUP REACTIONS
POLARIZED BEAMS
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TRITONS
TWO-NUCLEON TRANSFER REACTIONS
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
ASYMMETRY
BARYON REACTIONS
BEAMS
CHARGED PARTICLES
DIRECT REACTIONS
DISTRIBUTION
EVEN-EVEN NUCLEI
HADRON REACTIONS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
LITHIUM 6 TARGET
MULTI-NUCLEON TRANSFER REACTIONS
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PICKUP REACTIONS
POLARIZED BEAMS
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TRITONS
TWO-NUCLEON TRANSFER REACTIONS