A Laser Optically Pumped Polarized He-3 Target For Storage-Rings

K. LEE; J.O. HANSEN; J.F.J. van den Brand; R.G. MILNER

doi:10.1016/0168-9002(93)91169-N

A Laser Optically Pumped Polarized He-3 Target For Storage-Rings

K. LEE^*, J.O. HANSEN, J.F.J. van den Brand, R.G. MILNER

^*Corresponding author for this work

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

Abstract

A polarized He-3 target for use in a storage ring has been constructed and tested. The target employs an infrared laser to polarize He-3 atoms by metastability exchange optical pumping in a Pyrex glass cell which is connected by a glass capillary to a windowless target storage cell. The target polarization direction is determined by a 3 mT magnetic field. With 3 W of incident laser power, equilibrium polarizations of 50% at a flow rate of 1 x 10(17) He-3 atoms/s have been routinely achieved. Two techniques have been investigated to rapidly reverse the He-3 target polarization. Further, a scheme to interface the glass pumping cell with the storage ring vacuum has been developed.

Original language	English
Pages (from-to)	294-303
Number of pages	10
Journal	Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
Volume	333
Issue number	2-3
DOIs	https://doi.org/10.1016/0168-9002(93)91169-N
Publication status	Published - 1 Sept 1993
Externally published	Yes

Keywords

QUASI-ELASTIC SCATTERING
ELECTRONS

Access to Document

10.1016/0168-9002(93)91169-N

Cite this

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title = "A Laser Optically Pumped Polarized He-3 Target For Storage-Rings",

abstract = "A polarized He-3 target for use in a storage ring has been constructed and tested. The target employs an infrared laser to polarize He-3 atoms by metastability exchange optical pumping in a Pyrex glass cell which is connected by a glass capillary to a windowless target storage cell. The target polarization direction is determined by a 3 mT magnetic field. With 3 W of incident laser power, equilibrium polarizations of 50% at a flow rate of 1 x 10(17) He-3 atoms/s have been routinely achieved. Two techniques have been investigated to rapidly reverse the He-3 target polarization. Further, a scheme to interface the glass pumping cell with the storage ring vacuum has been developed.",

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author = "K. LEE and J.O. HANSEN and {van den Brand}, J.F.J. and R.G. MILNER",

year = "1993",

month = sep,

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doi = "10.1016/0168-9002(93)91169-N",

language = "English",

volume = "333",

pages = "294--303",

journal = "Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment",

issn = "0168-9002",

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number = "2-3",

}

A Laser Optically Pumped Polarized He-3 Target For Storage-Rings. / LEE, K.; HANSEN, J.O.; van den Brand, J.F.J. et al.
In: Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, Vol. 333, No. 2-3, 01.09.1993, p. 294-303.

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

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T1 - A Laser Optically Pumped Polarized He-3 Target For Storage-Rings

AU - LEE, K.

AU - HANSEN, J.O.

AU - van den Brand, J.F.J.

AU - MILNER, R.G.

PY - 1993/9/1

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N2 - A polarized He-3 target for use in a storage ring has been constructed and tested. The target employs an infrared laser to polarize He-3 atoms by metastability exchange optical pumping in a Pyrex glass cell which is connected by a glass capillary to a windowless target storage cell. The target polarization direction is determined by a 3 mT magnetic field. With 3 W of incident laser power, equilibrium polarizations of 50% at a flow rate of 1 x 10(17) He-3 atoms/s have been routinely achieved. Two techniques have been investigated to rapidly reverse the He-3 target polarization. Further, a scheme to interface the glass pumping cell with the storage ring vacuum has been developed.

AB - A polarized He-3 target for use in a storage ring has been constructed and tested. The target employs an infrared laser to polarize He-3 atoms by metastability exchange optical pumping in a Pyrex glass cell which is connected by a glass capillary to a windowless target storage cell. The target polarization direction is determined by a 3 mT magnetic field. With 3 W of incident laser power, equilibrium polarizations of 50% at a flow rate of 1 x 10(17) He-3 atoms/s have been routinely achieved. Two techniques have been investigated to rapidly reverse the He-3 target polarization. Further, a scheme to interface the glass pumping cell with the storage ring vacuum has been developed.

KW - QUASI-ELASTIC SCATTERING

KW - ELECTRONS

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DO - 10.1016/0168-9002(93)91169-N

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JF - Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment

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