Summary of Working Group 7: Radiation Generation and Advanced Concepts

This paper presents a summary of the presentations and discussions of Working Group 7 (WG7): Radiation and Advanced Concepts. This working group was part of the 2018 Advanced Accelerator Concepts Workshop held at Breckenridge, Colorado, from August 12 to 17, 2018. There was wide-range of topics covered by this working group raging from electromagnetic radiation generated by beams (both as a diagnostic and as a source) and advanced concepts that fall outside the scope of the other working groups.