Seminars Archive

LCLS-II: The Next Leap for X-ray Science, the old troubles for optical engineers

Abstract
LCLS the Linac Coherent Light Source of the SLAC National Accelerator laboratory, is undergoing a major upgrade, from 120 Hz to 1 MHz. With the predictable improvement of science outcome and novel techniques possible, a new challenge come at the horizon for the photon transport system. Since the set goal is to preserve the beam quality, completely novel optical system has to be developed to face the unprecedented issues associated to this unique source. After a brief introduction to the existing LCLS performances and expected characteristic of the novel source, the main technical challenges to transport, almost unperturbed, the beam, from the source to the experimental chamber, will be presented. Problem like wavefront preservation, in the presence of high heat load, never addressed before, damage, diagnostics and testing set ups will be discussed. These issues pose new and exciting challenges for handling the photon transport system and novel approaches to beamline design has to be embraced and will be described in this presentation.