Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches

S. Slutsky; C. M. Swank; A. Biswas; R. Carr; J. Escribano; B. W. Filippone; W. C. Griffith; M. Mendenhall; N. Nouri; C. Osthelder; A. Pérez Galván; R. Picker; B. Plaster

doi:10.1016/j.nima.2017.05.005

Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches

S. Slutsky, C. M. Swank, A. Biswas, R. Carr, J. Escribano, B. W. Filippone, W. C. Griffith, M. Mendenhall, N. Nouri, C. Osthelder, A. Pérez Galván, R. Picker, B. Plaster

Physics And Astronomy

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7 Scopus citations

Abstract

A magnetic coil operated at cryogenic temperatures is used to produce spatial, relative field gradients below 6 ppm/cm, stable for several hours. The apparatus is a prototype of the magnetic components for a neutron electric dipole moment (nEDM) search, which will take place at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory using ultra-cold neutrons (UCN). That search requires a uniform magnetic field to mitigate systematic effects and obtain long polarization lifetimes for neutron spin precession measurements. This paper details upgrades to a previously described apparatus [1], particularly the introduction of super-conducting magnetic shielding and the associated cryogenic apparatus. The magnetic gradients observed are sufficiently low for the nEDM search at SNS.

Original language	English
Pages (from-to)	36-48
Number of pages	13
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	862
DOIs	https://doi.org/10.1016/j.nima.2017.05.005
State	Published - Aug 1 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Cryogenic
Electric dipole moment
Geometric phase
Magnetic fields
Magnetic gradients
Superconducting

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2017.05.005

Cite this

Slutsky, S., Swank, C. M., Biswas, A., Carr, R., Escribano, J., Filippone, B. W., Griffith, W. C., Mendenhall, M., Nouri, N., Osthelder, C., Pérez Galván, A., Picker, R., & Plaster, B. (2017). Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 862, 36-48. https://doi.org/10.1016/j.nima.2017.05.005

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abstract = "A magnetic coil operated at cryogenic temperatures is used to produce spatial, relative field gradients below 6 ppm/cm, stable for several hours. The apparatus is a prototype of the magnetic components for a neutron electric dipole moment (nEDM) search, which will take place at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory using ultra-cold neutrons (UCN). That search requires a uniform magnetic field to mitigate systematic effects and obtain long polarization lifetimes for neutron spin precession measurements. This paper details upgrades to a previously described apparatus [1], particularly the introduction of super-conducting magnetic shielding and the associated cryogenic apparatus. The magnetic gradients observed are sufficiently low for the nEDM search at SNS.",

keywords = "Cryogenic, Electric dipole moment, Geometric phase, Magnetic fields, Magnetic gradients, Superconducting",

author = "S. Slutsky and Swank, {C. M.} and A. Biswas and R. Carr and J. Escribano and Filippone, {B. W.} and Griffith, {W. C.} and M. Mendenhall and N. Nouri and C. Osthelder and {P{\'e}rez Galv{\'a}n}, A. and R. Picker and B. Plaster",

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Slutsky, S, Swank, CM, Biswas, A, Carr, R, Escribano, J, Filippone, BW, Griffith, WC, Mendenhall, M, Nouri, N, Osthelder, C, Pérez Galván, A, Picker, R & Plaster, B 2017, 'Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 862, pp. 36-48. https://doi.org/10.1016/j.nima.2017.05.005

Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches. / Slutsky, S.; Swank, C. M.; Biswas, A. et al.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 862, 01.08.2017, p. 36-48.

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

TY - JOUR

T1 - Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches

AU - Slutsky, S.

AU - Swank, C. M.

AU - Biswas, A.

AU - Carr, R.

AU - Escribano, J.

AU - Filippone, B. W.

AU - Griffith, W. C.

AU - Mendenhall, M.

AU - Nouri, N.

AU - Osthelder, C.

AU - Pérez Galván, A.

AU - Picker, R.

AU - Plaster, B.

PY - 2017/8/1

Y1 - 2017/8/1

N2 - A magnetic coil operated at cryogenic temperatures is used to produce spatial, relative field gradients below 6 ppm/cm, stable for several hours. The apparatus is a prototype of the magnetic components for a neutron electric dipole moment (nEDM) search, which will take place at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory using ultra-cold neutrons (UCN). That search requires a uniform magnetic field to mitigate systematic effects and obtain long polarization lifetimes for neutron spin precession measurements. This paper details upgrades to a previously described apparatus [1], particularly the introduction of super-conducting magnetic shielding and the associated cryogenic apparatus. The magnetic gradients observed are sufficiently low for the nEDM search at SNS.

AB - A magnetic coil operated at cryogenic temperatures is used to produce spatial, relative field gradients below 6 ppm/cm, stable for several hours. The apparatus is a prototype of the magnetic components for a neutron electric dipole moment (nEDM) search, which will take place at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory using ultra-cold neutrons (UCN). That search requires a uniform magnetic field to mitigate systematic effects and obtain long polarization lifetimes for neutron spin precession measurements. This paper details upgrades to a previously described apparatus [1], particularly the introduction of super-conducting magnetic shielding and the associated cryogenic apparatus. The magnetic gradients observed are sufficiently low for the nEDM search at SNS.

KW - Cryogenic

KW - Electric dipole moment

KW - Geometric phase

KW - Magnetic fields

KW - Magnetic gradients

KW - Superconducting

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Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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