An optically polarised dense {sup 3}He target as a spin filter for slow-neutron beams

Journal Article · Fri Jan 31 00:00:00 EST 2003 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2003V033N01ABEH002359· OSTI ID:21470248

Kolachevsky, Nikolai N; Sobel'man, Igor I; Sorokin, Vadim N ^[1]; Prokof'ichev, Yu V; Skoi, V R ^[2]

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1. P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
2. I.M. Frank Neutron Physics Laboratory, Joint Institute of Nuclear Research, Dubna, Moscow region (Russian Federation)

The possibility of polarising {sup 3}He and preserving the polarisation in an external magnetic field of 0.05 Oe is demonstrated experimentally. A neutron filter with an extremely weak guiding field is fabricated for obtaining polarised neutron beams. The degree of polarisation equal to 25% was obtained for 0.025-eV neutrons. Some fields of application of other polarised noble gases are considered. The cross section for cross-relaxation of nuclear polarisation in the {sup 129}Xe - {sup 131}Xe mixture is estimated. (special issue devoted to the 80th anniversary of academician n g basov's birth)

• OSTI ID: 21470248
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 33, Issue 1; Other Information: DOI: 10.1070/QE2003v033n01ABEH002359; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
EV RANGE
FILTERS
HELIUM 3 TARGET
NEUTRON BEAMS
POLARIZATION
RARE GASES
RELAXATION
SLOW NEUTRONS
SPIN
XENON 129
XENON 131
ANGULAR MOMENTUM
BARYONS
BEAMS
DAYS LIVING RADIOISOTOPES
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EVEN-ODD NUCLEI
FERMIONS
FLUIDS
GASES
HADRONS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NEUTRONS
NONMETALS
NUCLEI
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
PARTICLE PROPERTIES
RADIOISOTOPES
STABLE ISOTOPES
TARGETS
XENON ISOTOPES