Polarized 3He Neutron Spin Filters for Neutron Scattering at Oak Ridge National Laboratory
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چکیده
منابع مشابه
Polarized 3He Spin Filters for Slow Neutron Physics
Polarized (3)He spin filters are needed for a variety of experiments with slow neutrons. Their demonstrated utility for highly accurate determination of neutron polarization are critical to the next generation of betadecay correlation coefficient measurements. In addition, they are broadband devices that can polarize large area and high divergence neutron beams with little gamma-ray background,...
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The large spin dependence of the absorption cross section for neutrons by He gas provides a method to polarize neutron beams. For certain applications, such polarized He-based neutron ”spin filters” have advantages over conventional neutron optical polarizing methods. Spin filters operate at all neutron wavelengths, can cover a large angular range and/or a large energy range, and decouple neutr...
متن کاملNeutron beam effects on spin-exchange-polarized 3He.
We have observed depolarization effects when high intensity cold neutron beams are incident on alkali-metal spin-exchange-polarized 3He cells used as neutron spin filters. This was first observed as a reduction of the maximum attainable 3He polarization and was attributed to a decrease of alkali-metal polarization, which led us to directly measure alkali-metal polarization and spin relaxation o...
متن کاملOak Ridge National Laboratory.
A seminar workshop will be held at the Oak Ridge National Laboratory on August 14, 15, and 16, 1967, under the sponsorship of the Radiation Shielding Information Center and the Computing Technology Center (CTC) with the general theme "The Discrete Ordinates (S Method for Radiation Transport Calculations." The purpose of i! ) he seminar is to review the state-of-the,-art of the Discrete Ordinate...
متن کاملNeutron single spin asymmetries from semi-inclusive deep inelastic scattering off transversely polarized 3He
A study of semi-inclusive deep inelastic scattering off transversely polarized 3He is presented. The formal expressions of the Collins and Sivers contributions to the azimuthal single spin asymmetry for the production of leading pions are derived, in impulse approximation, and estimated in the kinematics of forth-coming experiments at JLab. The AV18 interaction has been used for a realistic des...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations and Advances
سال: 2014
ISSN: 2053-2733
DOI: 10.1107/s2053273314098520