1. Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches.
- Author
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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., and Plaster, B.
- Subjects
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ELECTROMAGNETS , *CRYOGENICS , *MAGNETIC shielding , *NEUTRON electric moments , *DIPOLE moments - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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