Search results for "Atomic and molecular processes in external fields"

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Optically pumped Cs magnetometers enabling a high-sensitivity search for the neutron electric dipole moment

2020

An array of 16 laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 2016. It was deployed to measure the gradients of the experiment's magnetic field and to monitor their temporal evolution. The originality of the array lies in its compact design, in which a single near-infrared diode laser drives all magnetometers that are located in a high-vacuum chamber, with a selection of the sensors mounted on a high-voltage electrode. We describe details of the Cs sensors' construction and modes of operation, emphasizing the accuracy and sensitivity of the magnetic-field readout. We present two app…

experimental methodsAtomic Physics (physics.atom-ph)EXPERIMENTAL LIMITPhysics Atomic Molecular & Chemicalnucl-ex01 natural sciencesPhysics - Atomic PhysicsHigh Energy Physics - Experimentlaw.inventionHigh Energy Physics - Experiment (hep-ex)law[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment (nucl-ex)n: spinNuclear ExperimentPhysicsn: electric momentPhysicsincluding interactions with strong fields and short pulsesMagnetic fieldAtomic and molecular processes in external fieldsPhysical SciencesParticle Physics - ExperimentNeutron electric dipole momentMagnetometerOther Fields of PhysicsFOS: Physical sciencesmagnetic field: gradient[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]physics.atom-phOptics0103 physical sciencesNeutronNuclear Physics - ExperimentSensitivity (control systems)010306 general physicsDiodeScience & Technology010308 nuclear & particles physicsbusiness.industryhep-exScalar (physics)OpticssensitivityLaser[PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]laserfield strengthtime dependencebusinessexperimental results
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