A method for polarization control and analysis on Bonse-Hart double-crystal USANS instruments

Kenneth C. Littrell; Wai Tung Lee

doi:10.1016/j.physb.2003.11.065

A method for polarization control and analysis on Bonse-Hart double-crystal USANS instruments

Kenneth C. Littrell, Wai Tung Lee

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The use of polarized beams and polarization analysis is an area of increasing interest to the small-angle neutron scattering (SANS) community. Since the angular acceptance of a DCD USANS instrument is very narrow, magnetic prisms can be exploited to select polarization. We compare two schemes by which this can be accomplished and describe how this method can be adapted for use on time-of-flight DCD USANS instruments. The wavelength dispersion of the prism can be used on steady-state instruments to select or suppress higher harmonics of the characteristic incident wavelength.

Original language	English
Pages (from-to)	246-249
Number of pages	4
Journal	Physica B: Physics of Condensed Matter
Volume	345
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physb.2003.11.065
State	Published - Mar 1 2004
Externally published	Yes
Event	Proceedings of the Conference on Polarised Neutron - Venice, Italy Duration: Aug 4 2003 → Aug 6 2003

Funding

Argonne National Laboratory is managed by the University of Chicago for the U.S. Department of Energy under Contract No. W-31-109-ENG-38.

Funders	Funder number
U.S. Department of Energy	W-31-109-ENG-38
Argonne National Laboratory
University of Chicago

Keywords

Instrumentation
Magnetism
Neutron Scattering
Polarization
Prism
USANS

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10.1016/j.physb.2003.11.065

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abstract = "The use of polarized beams and polarization analysis is an area of increasing interest to the small-angle neutron scattering (SANS) community. Since the angular acceptance of a DCD USANS instrument is very narrow, magnetic prisms can be exploited to select polarization. We compare two schemes by which this can be accomplished and describe how this method can be adapted for use on time-of-flight DCD USANS instruments. The wavelength dispersion of the prism can be used on steady-state instruments to select or suppress higher harmonics of the characteristic incident wavelength.",

keywords = "Instrumentation, Magnetism, Neutron Scattering, Polarization, Prism, USANS",

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T1 - A method for polarization control and analysis on Bonse-Hart double-crystal USANS instruments

AU - Littrell, Kenneth C.

AU - Lee, Wai Tung

PY - 2004/3/1

Y1 - 2004/3/1

N2 - The use of polarized beams and polarization analysis is an area of increasing interest to the small-angle neutron scattering (SANS) community. Since the angular acceptance of a DCD USANS instrument is very narrow, magnetic prisms can be exploited to select polarization. We compare two schemes by which this can be accomplished and describe how this method can be adapted for use on time-of-flight DCD USANS instruments. The wavelength dispersion of the prism can be used on steady-state instruments to select or suppress higher harmonics of the characteristic incident wavelength.

AB - The use of polarized beams and polarization analysis is an area of increasing interest to the small-angle neutron scattering (SANS) community. Since the angular acceptance of a DCD USANS instrument is very narrow, magnetic prisms can be exploited to select polarization. We compare two schemes by which this can be accomplished and describe how this method can be adapted for use on time-of-flight DCD USANS instruments. The wavelength dispersion of the prism can be used on steady-state instruments to select or suppress higher harmonics of the characteristic incident wavelength.

KW - Instrumentation

KW - Magnetism

KW - Neutron Scattering

KW - Polarization

KW - Prism

KW - USANS

UR - http://www.scopus.com/inward/record.url?scp=1142292274&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2003.11.065

DO - 10.1016/j.physb.2003.11.065

M3 - Conference article

AN - SCOPUS:1142292274

SN - 0921-4526

VL - 345

SP - 246

EP - 249

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 1-4

T2 - Proceedings of the Conference on Polarised Neutron

Y2 - 4 August 2003 through 6 August 2003

ER -

A method for polarization control and analysis on Bonse-Hart double-crystal USANS instruments

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