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Open Access Publications from the University of California

Status of the ALS brightness upgrade


The Advanced Light Source (ALS) at Berkeley Lab while one of the earliest 3rdgeneration light sources remains one of the brightest sources for soft x-rays worldwide. Amultiyear upgrade of the ALS is currently under way, which includes new and replacementx-ray beamlines, a replacement of many of the original insertion devices and many upgradesto the accelerator. The accelerator upgrade that affects the ALS performance most directlyis the ALS brightness upgrade, which will reduce the horizontal emittance from 6.3 to 2.2nm (2.6 nm effective). This will result in a brightness increase by a factor of three forbendmagnet beamlines and at least a factor of two for insertion device beamlines. Magnetsfor this upgrade are currently in production and will be installed starting later thisyear. Copyright © 2012 by IEEE.

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