DOE's SLAC National Accelerator Laboratory issued a supplement analysis for the Linac Coherent Light Source-II environmental assessment (DOE/EA-1975).
Office of NEPA Policy and Compliance
December 15, 2023
minute read time
Low Emittance Injector for LINAC Coherent Light Source-Il High Energy Project; San Mateo County, California
The U.S. Department of Energy (DOE) issued a supplement analysis for the LINAC Coherent Light Source-Il (LCLS-II) environmental assessment (DOE/EA-1975). This document analyzes whether the environmental impacts of the proposed Low Emittance Injector (LEI) project would be within the original scope and impact envelope considered in the 2014 environmental assessment. The LEI facility will provide lower emittance bunches from the injector with minimal disruption to the photon science program. The new injector will be qualified and commissioned while the current injector remains in operation, and then used to drive the X-ray free electron laser (XFEL) exclusively or in combination with bunches from the original injector. The proposed LEI project will provide supporting infrastructure for this injector.