On the use of multilayer Laue lenses with X-ray Free Electron Lasers

Prasciolu, Mauro; Murray, Kevin T.; Иванов, Н. А.; Fleckenstein, H.; Domaracký, M.; Gelisio, Luca; Trost, F.; Ayyer, Kartik; Krebs, D.; Aplin, S.; Awel, Salah; Boesenberg, Ulrike; Barty, Anton; Estillore, Armando D.; Fuchs, Matthias; Gevorkov, Y.; Hallmann, Jörg; Kim, Chan; Knoška, J.; Küpper, Jochen; Li, Chufeng; Lü, Wei; Mariani, Valerio; Morgan, Andrew J.; Möller, J.; Madsen, Anders; Oberthür, Dominik; Murillo, Gisel E. Peña; Reis, David A.; Scholz, Markus; Šarler, Božidar; Villanueva-Pérez, P.; Yefanov, Oleksandr; Zielinski, Kara A.; Zozulya, Alexey; Chapman, Henry N.; Bajt, Saša

doi:10.48550/arxiv.2203.11712

Cited by 1 publication

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“…One way to achieve this is with extreme focusing, but this requires high-quality X-ray optics such as MLLs. The first experiment in which MLLs were used to focus XFEL beams was performed at the European XFEL facility [4,5]. These MLLs were based on tungsten carbide (WC) and silicon carbide (SiC) multilayers [6].…”

Section: Introductionmentioning

confidence: 99%

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Numerical simulations of temperature loads on multilayer Laue lenses

Rek,

Chapman,

Bajt

et al. 2024

J. Phys.: Conf. Ser.

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We present numerical simulations of the heat loads on novel diffractive X-ray optics, known as multilayer Laue lenses, exposed to high-intensity X-ray beams produced by an X-ray free electron laser (XFEL). These lenses can be used to focus XFEL beams to nanometer spots. The temperature distribution within the lens and temperature evolution as a function of incident pulse frequencies were calculated for two different lens geometries and several material pairs and material ratios of the MLLs. Simulations considered the special pulse structure of European XFEL with X-rays being delivered in pulse trains. After defining the geometric model, computational grid, material properties, and boundary conditions, a grid sensitivity study was carried out. We solved the transient heat energy transport equation in solids for mixed boundary conditions. The results of these simulations will help select materials and lens geometry for future XFEL experiments.

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Section: Introductionmentioning

confidence: 99%

“…However, most of the experiments are usually done with lower frequency (1-2 MHz). In the aforementioned experiment [4,5], the incident XFEL beam was pre-focused with compound refractive lenses to ~300 µm and additionally reduced with slits to 100 µm x 100 µm. This size matched the dimensions of MLLs.…”

Section: Introductionmentioning

confidence: 99%