1. A Beginner’s Guide to Synchrotron Radiation and X-Ray Lasers

This chapter offers an in-depth exploration of synchrotron radiation and X-ray lasers, covering their fundamental principles, historical milestones, and modern applications. It begins with an overview of the basic components and operation of an electron storage ring radiation source, highlighting the importance of beam properties such as focus sizes and fluxes. The chapter also delves into the evolution of these sources, from the early surveys in 1992 to the recent major upgrades like the ESRF EBS. Additionally, it provides insights into the practical aspects of using synchrotron facilities, including machine status displays and the significance of beamlines. The chapter concludes with a discussion on the future directions and challenges in the field, making it a valuable resource for both beginners and specialists interested in the topic.