A New Light for Berkeley Lab—the Advanced Light Source Upgrade
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
The Advanced Light Source Upgrade Project (ALS-U) will leverage multibend achromat technology to endow the ALS with revolutionary soft X-ray capabilities, and has recently received formal approval to proceed to the preliminary design phase. Soft X-rays are a critical diagnostic tool for enabling the understanding and control of heterogeneous, hierarchical functional materials and chemical synthesis platforms since they can reveal chemical, electronic, and magnetic properties with very high sensitivity. Although the ALS has a strong track record in soft X-ray science over the last 25 years, it, like most other existing storage-ring-based X-ray light sources, lacks the simultaneous combination of nanometer spatial resolution, diverse spectroscopic contrast, and broad temporal sensitivity required to image the location of molecules, ions, and electrons, and to measure how their components migrate and interact to support efficient function. The high coherent flux of the upgraded ALS willenable a suite of tools that encompass 3D nanoscale imaging with high spectral sensitivity over broad space and time scales, dramatically amplifying the already high impact of ALS soft X-ray spectroscopies. Relative to many other synchrotron light source upgrade projects or new facilities being built today, the upgraded ALS will operate at a low electron-beam energy of 2 GeV and a high current of 500 mA, and is optimized for soft X-rays. Its soft X-ray coherent flux will be orders of magnitude higher than that of the existing ALS and beyond the coherent flux of any storage-ring-based light source operating, under construction, or currently planned. In total, the upgraded facility will provide an unprecedented combination of high stability, quasi-continuous radiation, and the highest possible coherent soft X-ray flux.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1510763
- Journal Information:
- Synchrotron Radiation News, Vol. 32, Issue 1; ISSN 0894-0886
- Publisher:
- Taylor & FrancisCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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