Ring Current Decay

The Terrestrial Ring Current: Origin, Formation, and Decay

The terrestrial ring current is an electric current flowing toroidally around the Earth, centered at the equatorial plane and at altitudes of ;10,000–60,000 km. Changes in this current are responsible for global decreases in the Earth’s surface magnetic field, which are known as geomagnetic storms. Intense geomagnetic storms have severe effects on technological systems, such as disturbances or ...

Decay ring status / studies

The aim of "beta-beams" is to produce highly energetic pure electron neutrino and anti-neutrino beams coming from β-decay of radioactive ions. In CERN baseline, after accelerating, the ions 6 He 2+ and 18 Ne 10+ are stored in a racetrack-shaped-decay ring until they are lost [1]. Consequently, the injection compensates the losses which occurred between two cycles. Two main loss sources were ide...

On the decay of a turbulent vortex ring

Muon Polarimeter in a Neutrino Factory Decay Ring

Monitoring the muon beam properties in the final stage of the Neutrino Factory (the Decay Ring) is important for the understanding of the beam itself and a crucial piece of information for the downstream physics. The main topics to be assessed are: knowledge of the muon beam energy and polarization, divergence of the beam and beam current. In the framework of the International Design Study for ...

Persistent spin current in anisotropic spin ring

The persistent spin current in an anisotropic spin ring penetrated by a SU(2) flux is studied by the Schwinger–Boson mean-field approach. The anisotropy in spin coupling can facilitate the persistent spin current. Ground-state energy and excitation-energy gap are also studied. A peak of spin current occurs at the maximum value of the ground-state energy. r 2006 Published by Elsevier B.V. PACS: ...