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16 June 2017 Laser driven plasmas based incoherent x-ray sources at PALS and ELI Beamlines (Conference Presentation)
Michaela Kozlová
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Proceedings Volume 10243, X-ray Lasers and Coherent X-ray Sources: Development and Applications; 102430W (2017) https://doi.org/10.1117/12.2265730
Event: SPIE Optics + Optoelectronics, 2017, Prague, Czech Republic
Abstract
We will present data on a various X-ray production schemes from laser driven plasmas at the PALS Research Center and discuss the plan for the ELI Beamlines project. One of the approaches, how to generate ultrashort pulses of incoherent X-ray radiation, is based on interaction of femtosecond laser pulses with solid or liquid targets. So-called K-alpha source depending on used targets emits in hard X-ray region from micrometric source size. The source exhibits sufficient spatial coherence to observe phase contrast. Detailed characterization of various sources including the x-ray spectrum and the x-ray average yield along with phase contrast images of test objects will be presented. Other method, known as laser wakefield electron acceleration (LWFA), can produce up to GeV electron beams emitting radiation in collimated beam with a femtosecnond pulse duration. This approach was theoretically and experimentally examined at the PALS Center. The parameters of the PALS Ti:S laser interaction were studied by extensive particle-in-cell simulations with radiation post-processors in order to evaluate the capabilities of our system in this field. The extensions of those methods at the ELI Beamlines facility will enable to generate either higher X-ray energies or higher repetition rate. The architecture of such sources and their considered applications will be proposed.
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Michaela Kozlová "Laser driven plasmas based incoherent x-ray sources at PALS and ELI Beamlines (Conference Presentation)", Proc. SPIE 10243, X-ray Lasers and Coherent X-ray Sources: Development and Applications, 102430W (16 June 2017); https://doi.org/10.1117/12.2265730
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KEYWORDS
X-rays
Plasmas
X-ray sources
Phase contrast
X-ray characterization
X-ray imaging
Data centers
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