Dynamics of three simultaneously stored beams in a storage ring

In this study, the observation of three Headwear simultaneously rotating beams in the SOLEIL storage ring is reported.This event occurred in November 2007 while operating in a low momentum compaction factor mode.The dynamics of the three beams is simulated using the longitudinal equations of motion and the longitudinal phase-space Hamiltonian which

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Two-dipole model of the asymmetric Sun

The large-scale photospheric magnetic field is commonly thought to be mainly dipolar during sunspot minima, when magnetic fields of opposite polarity cover the solar poles.However, recent studies show that the octupole harmonics contribute comparably to the spatial power of the photospheric field at these times.Also, the even harmonics are non-zero

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