High-Brightness Beam Technology Development for a Future Dynamic Mesoscale Materials Science Capability
| Autor: | Quinn R. Marksteiner, Nikolai Yampolsky, Bruce E. Carlsten, Cris W. Barnes, Petr M. Anisimov, River Robles |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Brightness
Photon 010308 nuclear & particles physics business.industry Mesoscale meteorology Undulator high-brightness electron beam Laser 01 natural sciences lcsh:QC1-999 law.invention law 0103 physical sciences lcsh:QC770-798 X-ray free-electron laser eSASE lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Thermal emittance Radio frequency Aerospace engineering 010306 general physics business Instrumentation lcsh:Physics Beam (structure) |
| Zdroj: | Instruments Volume 3 Issue 4 Instruments, Vol 3, Iss 4, p 52 (2019) |
| ISSN: | 2410-390X |
| DOI: | 10.3390/instruments3040052 |
| Popis: | A future capability in dynamic mesoscale materials science is needed to study the limitations of materials under irreversible and extreme conditions, where these limitations are caused by nonuniformities and defects in the mesoscale. This capability gap could potentially be closed with an X-ray free-electron laser (XFEL), producing 5 × 1010 photons with an energy of 42 keV, known as the Matter&ndash Radiation Interactions in Extremes (MaRIE) XFEL. Over the last few years, researchers at the Los Alamos National Laboratory have developed a preconceptual design for a MaRIE-class XFEL based on existing high-brightness beam technologies, including superconducting L-band cryomodules. However, the performance of a MaRIE-class XFEL can be improved and the risk of its operation reduced by investing in emerging high-brightness beam technologies, such as the development of high-gradient normal conducting radio frequency (RF) structures. Additionally, an alternative XFEL architecture, which generates a series of high-current microbunches instead of a single bunch with uniformly high current along it, may suppress the most important emittance degradation effects in the accelerator and in the XFEL undulator. In this paper, we describe the needed dynamic mesoscale materials science capability, a MaRIE-class XFEL, and the proposed microbunched XFEL accelerator architecture in detail. |
| Databáze: | OpenAIRE |
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