Zlatko Rek (Avtor), Henry N. Chapman (Avtor), Saša Bajt (Avtor), Božidar Šarler (Avtor)

Povzetek

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.

Ključne besede

numerične simulacije;prenos toplote;rentgenski laserji s prostimi elektroni;večplastna leča Laue;numerical simulations;heat transfer;x-ray free-electron lasers;multilayer Laue lens;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 519.62:536.24
COBISS: 197740803 Povezava se bo odprla v novem oknu
ISSN: 1742-6596
Št. ogledov: 419
Št. prenosov: 59
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: numerične simulacije;prenos toplote;rentgenski laserji s prostimi elektroni;večplastna leča Laue;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-6
Zvezek: ǂVol. ǂ2766, [article no.] 012034
Čas izdaje: 2024
DOI: 10.1088/1742-6596/2766/1/012034
ID: 24291046