Beam by design: laser manipulation of electrons in modern accelerators
By E. Hemsing, G. Stupakov, D. Xiang, Alexander Zholents. 2014
137 citations recorded by the source corpus.
Accelerator-based light sources such as storage rings and free-electron lasers use relativistic electron beams to produce intense radiation over a wide spectral range for fundamental research in physics, chemistry, materials science, biology and medicine. More than a dozen such sources operate worldwide, and new sources are being built to deliver radiation that meets with the ever increasing sophistication and depth of new research. Even so, conventional accelerator techniques often cannot keep pace with new demands and, thus, new approaches continue to emerge. In this article, we review a variety of recently developed and promising techniques that rely on lasers to manipulate and rearrange the electron distribution in order to tailor the properties of the radiation. Basic theories of electron-laser interactions, techniques to create micro- and nano-structures in electron beams, and techniques to produce radiation with customizable waveforms are reviewed. We overview laser-based techniques for the generation of fully coherent x-rays, mode-locked x-ray pulse trains, light with orbital angular momentum, and attosecond or even zeptosecond long coherent pulses in free-electron lasers. Several methods to generate femtosecond pulses in storage rings are also discussed. Additionally, we describe various schemes designed to enhance the performance of light sources through precision beam preparation including beam conditioning, laser heating, emittance exchange, and various laser-based diagnostics. Together these techniques represent a new emerging concept of "beam by design" in modern accelerators, which is the primary focus of this article
Subfields: Electrical and Electronic Engineering, Nuclear and High Energy Physics, Radiation
View Paper: https://www.semanticscholar.org/paper/d752fd37e0615413d0644bea2da3c7506ef9976f
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In Electrical and Electronic Engineering
Citations in the corpus
- Stimulated Raman adiabatic passage in physics, chemistry, and beyond (2016, background): “particular, in Sec. II.E, seem to rule out any possibility of implementing STIRAP with radiation in the x-ray regime. However, looking ahead a few years we can be encouraged by new radiation sources (Hemsing et al., 2014) and the use of temporally-coherent light and pulse lengths as long as a few ps”