Test of a continuously polarized 3He neutron spin filter with NMR-based polarization inversion on a single-crystal diffractometer

G. L. Jones; F. Dias; B. Collett; W. C. Chen; T. R. Gentile; P. M.B. Piccoli; M. E. Miller; A. J. Schultz; H. Yan; X. Tong; W. M. Snow; W. T. Lee; C. Hoffmann; J. Thomison

doi:10.1016/j.physb.2006.05.390

Test of a continuously polarized ³He neutron spin filter with NMR-based polarization inversion on a single-crystal diffractometer

G. L. Jones, F. Dias, B. Collett, W. C. Chen, T. R. Gentile, P. M.B. Piccoli, M. E. Miller, A. J. Schultz, H. Yan, X. Tong, W. M. Snow, W. T. Lee, C. Hoffmann, J. Thomison

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Spin filters based on the large spin dependence of the neutron absorption cross-section by ³He are currently being applied in neutron scattering. We report here the construction and test of a ³He neutron spin filter that incorporates (1) in situ continuous optical pumping to maximize the time-averaged polarization and maintain a stable ³He polarization during experiments, and (2) low-loss adiabatic-fast-passage inversion of the ³He polarization to eliminate the need for a neutron spin flipper. The device was successfully tested at the single-crystal diffractometer at the Intense-Pulsed Neutron Source, Argonne National Laboratory. This device can be used in measurements of static magnetic-materials as well as magnetic-relaxation phenomena with long relaxation times.

Original language	English
Pages (from-to)	1131-1133
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	385-386
DOIs	https://doi.org/10.1016/j.physb.2006.05.390
State	Published - Nov 15 2006
Externally published	Yes

Funding

This work was supported in part by the DOE, Basic Energy Sciences, Materials Sciences, under Contract no. W-31-109-ENG-38 and DE-FG02-03ER46093 and by Oak Ridge National Laboratory, managed for the DOE by UT-Battelle, LLC under Contract no. DE-AC05-00OR22725.

Funders	Funder number
Materials Sciences	W-31-109-ENG-38, DE-FG02-03ER46093
UT-Battelle, LLC
U.S. Department of Energy
Basic Energy Sciences
Oak Ridge National Laboratory

Keywords

Adiabatic fast passage
He neutron spin filter
Neutron polarization
Spin exchange optical pumping

Access to Document

10.1016/j.physb.2006.05.390

Cite this

Jones, G. L., Dias, F., Collett, B., Chen, W. C., Gentile, T. R., Piccoli, P. M. B., Miller, M. E., Schultz, A. J., Yan, H., Tong, X., Snow, W. M., Lee, W. T., Hoffmann, C., & Thomison, J. (2006). Test of a continuously polarized ³He neutron spin filter with NMR-based polarization inversion on a single-crystal diffractometer. Physica B: Physics of Condensed Matter, 385-386, 1131-1133. https://doi.org/10.1016/j.physb.2006.05.390

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abstract = "Spin filters based on the large spin dependence of the neutron absorption cross-section by 3He are currently being applied in neutron scattering. We report here the construction and test of a 3He neutron spin filter that incorporates (1) in situ continuous optical pumping to maximize the time-averaged polarization and maintain a stable 3He polarization during experiments, and (2) low-loss adiabatic-fast-passage inversion of the 3He polarization to eliminate the need for a neutron spin flipper. The device was successfully tested at the single-crystal diffractometer at the Intense-Pulsed Neutron Source, Argonne National Laboratory. This device can be used in measurements of static magnetic-materials as well as magnetic-relaxation phenomena with long relaxation times.",

keywords = "Adiabatic fast passage, He neutron spin filter, Neutron polarization, Spin exchange optical pumping",

author = "Jones, {G. L.} and F. Dias and B. Collett and Chen, {W. C.} and Gentile, {T. R.} and Piccoli, {P. M.B.} and Miller, {M. E.} and Schultz, {A. J.} and H. Yan and X. Tong and Snow, {W. M.} and Lee, {W. T.} and C. Hoffmann and J. Thomison",

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doi = "10.1016/j.physb.2006.05.390",

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Jones, GL, Dias, F, Collett, B, Chen, WC, Gentile, TR, Piccoli, PMB, Miller, ME, Schultz, AJ, Yan, H, Tong, X, Snow, WM, Lee, WT, Hoffmann, C & Thomison, J 2006, 'Test of a continuously polarized ³He neutron spin filter with NMR-based polarization inversion on a single-crystal diffractometer', Physica B: Physics of Condensed Matter, vol. 385-386, pp. 1131-1133. https://doi.org/10.1016/j.physb.2006.05.390

TY - JOUR

T1 - Test of a continuously polarized 3He neutron spin filter with NMR-based polarization inversion on a single-crystal diffractometer

AU - Jones, G. L.

AU - Dias, F.

AU - Collett, B.

AU - Chen, W. C.

AU - Gentile, T. R.

AU - Piccoli, P. M.B.

AU - Miller, M. E.

AU - Schultz, A. J.

AU - Yan, H.

AU - Tong, X.

AU - Snow, W. M.

AU - Lee, W. T.

AU - Hoffmann, C.

AU - Thomison, J.

PY - 2006/11/15

Y1 - 2006/11/15

N2 - Spin filters based on the large spin dependence of the neutron absorption cross-section by 3He are currently being applied in neutron scattering. We report here the construction and test of a 3He neutron spin filter that incorporates (1) in situ continuous optical pumping to maximize the time-averaged polarization and maintain a stable 3He polarization during experiments, and (2) low-loss adiabatic-fast-passage inversion of the 3He polarization to eliminate the need for a neutron spin flipper. The device was successfully tested at the single-crystal diffractometer at the Intense-Pulsed Neutron Source, Argonne National Laboratory. This device can be used in measurements of static magnetic-materials as well as magnetic-relaxation phenomena with long relaxation times.

AB - Spin filters based on the large spin dependence of the neutron absorption cross-section by 3He are currently being applied in neutron scattering. We report here the construction and test of a 3He neutron spin filter that incorporates (1) in situ continuous optical pumping to maximize the time-averaged polarization and maintain a stable 3He polarization during experiments, and (2) low-loss adiabatic-fast-passage inversion of the 3He polarization to eliminate the need for a neutron spin flipper. The device was successfully tested at the single-crystal diffractometer at the Intense-Pulsed Neutron Source, Argonne National Laboratory. This device can be used in measurements of static magnetic-materials as well as magnetic-relaxation phenomena with long relaxation times.

KW - Adiabatic fast passage

KW - He neutron spin filter

KW - Neutron polarization

KW - Spin exchange optical pumping

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