Present and future optics challenges at CHESS and for proposed energy recovery linac source of synchrotron radiation

Abstract

We present recent test results and discuss design challenges on x-ray optical components for the wiggler sources at CHESS and for the proposed energy recovery linac (ERL) source at Cornell. For the existing wiggler sources, a new white-beam collimating mirror has been installed and tested at F-line and some preliminary test results are presented. For the proposed ERL, three types of x-ray optical components are identified and considered: (1) high-heat-load capable optics for high-power and high-power-density insertion-device sources, (2) brilliance preserving optics that can provide high transverse coherence, and (3) optics used to manipulate, preserve and produce short x-ray pulses.

Fourth-generation light sources

“…A strong connection between these different 'fourth generation' facilities is needed to tackle what are becoming joint challenges. Looking even further ahead, a higher diversity of sources including energy-recovery linacs (Shen, 2001), and compact accelerators utilizing high-power laser technologies (Graves et al, 2017), may benefit from such synergies and serve the needs of structural science with both specialized instrumentation for particular types of measurements or test beds for further development. IUCrJ will continue to chart the exciting outcomes emerging from this and future generations of sources.…”