Published February 15, 2005 | Version v1
Journal article Metadata-only

Polarized 3He spin filters in neutron scattering

Creators

  • 1. National Institute of Standards and Technology, 100 Bureau Dr, MS 8461, Gaithersburg, MD 20899 (United States)
  • 2. University of Wisconsin-Madison, Madison, WI (United States)
  • 3. Indiana University, Bloomington, IN 47408 (United States)
  • 4. Hamilton College, Clinton, NY 13323 (United States)
  • 5. Spallation Neutron Source, Oak Ridge, TN (United States)
  • 6. University of Maryland at College Park, College Park, MD (United States)
  • 7. Argonne National Laboratory, Argonne, IL (United States)

Description

We report progress in the development and application of neutron spin filters based on transmission through polarized 3He gas. Tests and application of these devices are underway at the National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) and the Intense Pulsed Neutron Source (IPNS). The results of application to polarization analysis for diffuse reflectometry is discussed, along with an example of the issues in choosing the flipping ratio for such applications. The status of our development of polarized gas production using both spin-exchange (SEOP) and metastability-exchange (MEOP) optical pumping will be presented. For SEOP, we currently obtain 70-75% 3He polarization in cells up to 500cm3 in volume

Additional details

Identifiers

DOI
10.1016/j.physb.2004.10.056;
PII
S0921-4526(04)01075-0;

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
356
Journal Issue
1-4
Journal Page Range
p. 96-102
ISSN
0921-4526
CODEN
PHYBE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36058098
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
FILTERS; HELIUM 3; NEUTRON DIFFRACTION; NEUTRON SOURCES; NEUTRONS; OPTICAL PUMPING; POLARIZATION; SPIN; SPIN EXCHANGE
Descriptors DEC
ANGULAR MOMENTUM; BARYONS; COHERENT SCATTERING; DIFFRACTION; ELEMENTARY PARTICLES; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; NUCLEI; NUCLEONS; PARTICLE PROPERTIES; PARTICLE SOURCES; PUMPING; RADIATION SOURCES; SCATTERING; STABLE ISOTOPES

Optional Information

Copyright
Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.