The measurement of electric dipole moment in storage rings can potentially exceed the sensitivity tests with neutral systems. spin dynamics under such conditions is described by Bargmann-Michel-Telegdi equation. It be derived semiclassical approximation several assumptions one which zero pseudoscalar bilinear. However, many promising extensions to standard model consider scalar-pseudoscalar cou...

Electrostatic storage rings combine a number of very interesting characteristics that make them an attractive tool in the low energy range. In contrast to magnetic rings, all of the fields in an electrostatic storage ring are completely mass independent. At the same particle energy and charge state, ions from light protons to heavy biomolecules can in principal be stored with identical field se...

Some of the characteristics of recent ultralow-emittance storage-ring designs and possibly future diffraction-limited storage rings are a compact lattice combined with small magnet apertures. Such requirements present a challenge for the design and performance of the vacuum system. The vacuum system should provide the required vacuum pressure for machine operation and be able to handle the heat...

Efficient production and collection of a large number of muons is needed to make a neutrino factory based on a muon storage ring viable. Results of extensive MARS simulations for 2–30GeV protons on various targets in a 20T hybrid solenoid followed by a matching section and decay channel are reported. Part I describes pion and muon yields, targetry issues, and beam energy and power consideration...

In this paper, we study distributed storage problems over unidirectional ring networks. A lower bound on the reconstructing bandwidth to recover total original data for each user is proposed, and it is achievable for arbitrary parameters. If a distributed storage scheme can achieve this lower bound with equality for each user, we say it an optimal reconstructing distributed storage scheme (ORDS...

The Robust Conjugate Direction Search (RCDS) [1] optimizer is applied for online optimizations of the ESRF accelerators. This paper presents the successful application of the algorithm in reducing vertical emittance, improving injection efficiency and increasing lifetime. A new set of sextupole settings to increase chromaticity has been obtained with lifetimes comparable to the existing one. Th...

Lingyun Yang Storage Ring Lattice Modeling and Its Applications Small amplitude particle motion around its closed orbit in an accelerator can be well approximated by the linear betatron oscillation. This linearized betatron oscillation is simple harmonic motion governed by Hill’s equation. The closed orbit may be distorted by a dipole error or an orbit bump, and the observed distortion divided ...

An electron beam in a storage ring seems to be a perfect driver for a free electron laser. The understanding of storage rings is very well advanced to.project designs with high peak current, small beam sizesand short damping times. Since the beam is recycled after passage through the optical cavity we can expect a relatively high overall efficiency. On the other hand, however the fact that we d...