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Chasman–Green Lattice
The Chasman–Green lattice, also known as a double bend achromat lattice (DBA lattice), is a special magnetic lattice (accelerator), periodic arrangement of magnets designed by Renate Chasman and George Kenneth Green of Brookhaven National Laboratory in the mid-1970s for synchrotrons. This lattice provides optimized bending and focusing of electrons in storage rings designed for synchrotron light sources. An electron storage ring constructed with a Chasman–Green lattice has the important property that the circulating Charged particle beam, electron beams have very low beam emittance, emittance, which results in the emission of synchrotron radiation, synchrotron light of exceptional brightness. For this reason it is the lattice of choice for most of the premier synchrotron light source facilities worldwide. Each period of the Chasman–Green lattice contains a focusing quadrupole magnet symmetrically located between a pair of identical dipole magnets, which transports incident el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Lattice (accelerator)
In accelerator physics, a magnetic lattice is a composition of electromagnets at given longitudinal positions around the vacuum tube of a particle accelerator, and thus along the path of the enclosed charged particle beam. The lattice properties have a large influence on the properties of the particle beam, which is shaped by magnetic fields. Lattices can be closed (cyclic accelerators like the synchrotrons), linear (for linac facilities) and are also used at interconnects between different accelerator structures (transfer beamlines). Such a structure is needed for focusing of the particle beam in modern, large-scale facilities. Its basic elements are dipole magnets for deflection, quadrupole magnets for strong focusing, sextupole magnets for correction of chromatic aberration In optics, chromatic aberration (CA), also called chromatic distortion, color aberration, color fringing, or purple fringing, is a failure of a lens to focus all colors to the same point. It is caused by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renate Chasman
Renate Wiener Chasman (January 10, 1932 – October 17, 1977) was a physicist. She was born Renate Wiener to German Jewish parents in Berlin. Her father, Hans Wiener, was a founder of the Social Democratic Party of Germany. In 1938, the Wiener family fled Nazi Germany through the Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ... to Sweden, where Wiener grew up and attended school in Stockholm. Wiener and her sister Edith went to Israel to attend Hebrew University of Jerusalem. Wiener graduated in 1955 with a M.Sc. in physics with minors in chemistry and mathematics. She earned her PhD in experimental physics in 1959. Her doctoral thesis demonstrated that a pseudoscalar component was not involved in Parity (physics), parity Conservation law (physics), nonconservation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |