Completion of the Brightness Upgrade of the ALS

17th Pan-American Synchrotron Radiation Instrumentation Conference

Steier, C.^1 ; Madur, A.^1 ; Bailey, B.^1 ; Berg, K.^1 ; Biocca, A.^1 ; Black, A.^1 ; Casey, P.^1 ; Colomb, D.^1 ; Gunion, B.^1 ; Li, N.^1 ; Marks, S.^1 ; Nishimura, H.^1 ; Pappas, C.^1 ; Petermann, K.^1 ; Portmann, G.^1 ; Prestemon, S.^1 ; Rawlins, A.^1 ; Robin, D.^1 ; Rossi, S.^1 ; Scarvie, T.^1 ; Schlueter, R.^1 ; Sun, C.^1 ; Tarawneh, H.^1 ; Wan, W.^1 ; Williams, E.^1 ; Yin, L.^2 ; Zhou, Q.^2 ; Jin, J.^2 ; Zhang, J.^2 ; Chen, C.^2 ; Wen, Y.^2 ; Wu, J.^2

LBNL, Berkeley, CA 94720, United States^1

SINAP, Shanghai, China^2

关键词: Advanced light sources;    Emittances;    Insertion device;    Soft X-ray;    X-ray beamlines;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/493/1/012030/pdf
DOI  :  10.1088/1742-6596/493/1/012030

来源: IOP

【 摘 要 】

The Advanced Light Source (ALS) at Berkeley Lab remains one of the brightest sources for soft x-rays worldwide. A multiyear upgrade of the ALS is underway, which includes new and replacement x-ray beamlines, a replacement of many of the original insertion devices and many upgrades to the accelerator. The accelerator upgrade that affects the ALS performance most directly is the ALS brightness upgrade [1], which reduces the horizontal emittance from 6.3 to 2.0 nm (2.5 nm effective). Magnets for this upgrade were installed in late 2012 and early 2013 followed by user operation with the reduced emittance.