Advanced Light Source elliptical wiggler

A Robinson Wiggler Proposal for the Metrology Light Source

The Metrology Light Source (MLS), situated in Berlin (Germany) is owned by the Physikalisch-Technische Bundesanstalt andwas built / is operated by theHelmholtz-Zentrum Berlin. It is an electron storage ring operating from 105MeV to 630MeV. The MLS serves as the national primary source standard from the near infrared to the extreme ultraviolet spectral region [1]. Users of synchrotron radiation ...

Advanced Light Source April 1997

Chemical Crystallography at the Advanced Light Source

Chemical crystallography at synchrotrons was pioneered at the Daresbury SRS station 9.8. The chemical crystallography beamlines at the Advanced Light Source seek to follow that example, with orders of magnitude more flux than a lab source, and various in situ experiments. This article attempts to answer why a chemist would require synchrotron X-rays, to describe the techniques available at the ...

Status of the Robinson Wiggler Project at the Metrology Light Source

The beam lifetime in electron storage rings concerns machines running in decay mode as well as machines doing topup. A standard procedure to increase the lifetime is via bunch lengthening as the lifetime depends on the electron density in the bunch. Bunch lengthening is typically achieved with higher harmonic (Landau) cavities. As noted in [1], there are several advantages in using a different ...

Model Calibration and Symmetry Restoration of the Advanced Light Source*

The symmetry of the ALS magnetic lattice is crucial in suppressing nonlinear structural resonances. Breaking the symmetry of the lattice can lead to a reduction in the dynamic aperture. The degree of symmetry breaking can be determined by fitting a magnetic lattice model to the measured orbit response matrix. This reveals a large beating of the vertical beta-function caused mainly by gradient e...