Latest experiences and future plans on NSLS-II insertion devices

Abstract

Abstract. National Synchrotron Light Source-II (NSLS-II) is the latest storage ring of 3 GeV energy at the Brookhaven National Laboratory (BNL). The horizontal emittance of the electron beam with the currently installed six damping wigglers is 0.9 nm.rad, which could be further reduced to 0.5 nm.rad with more insertion devices (IDs). With only one RF cavity the beam current is restricted to 200 mA. Five hundred mA operation is envisaged for next year with an addition of the second cavity. Six (plus two branches) beamlines have been commissioned in the initial phase of the project. In July 2015, three NIH funded beamlines called "Advanced Beamlines for Biological Investigations with Xrays" (ABBIX) will be added for operation. This paper describes the experiences of ID development, installation, and commissioning for the NSLS-II project as well as our future plans to improve the performance of the facility in terms of source development.

Latest Experience on Insertion Devices at the National Synchrotron Light Source-II

“…22, theˆrstˆeld integral values inferred from the electron beam could be signiˆcantly diŠerent from those expected from the magneticˆeld measurement at the ID-MMF. Since multiple measurement results at the ID-MMF were cross checked by other facilities, it is almost certain that the electron beam must be experiencing a diŠerentˆeld when it passes through the ID.…”