October 25, 2023 Dataset Open Access

Habibi, Mahdi; Arefiev, Alexey; Toncian, Toma

DCAT Export

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        <foaf:name>Habibi, Mahdi</foaf:name>
        <foaf:givenName>Mahdi</foaf:givenName>
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        <foaf:name>Arefiev, Alexey</foaf:name>
        <foaf:givenName>Alexey</foaf:givenName>
        <foaf:familyName>Arefiev</foaf:familyName>
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            <foaf:name>Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA 92093, USA</foaf:name>
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        <foaf:name>Toncian, Toma</foaf:name>
        <foaf:givenName>Toma</foaf:givenName>
        <foaf:familyName>Toncian</foaf:familyName>
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    <dct:title>High Field Suppression of Bremsstrahlung Emission in High-Intensity Laser-Plasma Interactions</dct:title>
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    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#gYear">2023</dct:issued>
    <dcat:keyword>Bremsstrahlung emission</dcat:keyword>
    <dcat:keyword>High field suppression</dcat:keyword>
    <dcat:keyword>Relativistic transparency</dcat:keyword>
    <dcat:keyword>High-intensity laser-plasma interaction</dcat:keyword>
    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2023-10-25</dct:issued>
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    <dct:description>&lt;p&gt;The interaction of high-intensity lasers with plasma is predicted to produce extreme quasi-static magnetic fields with magnitudes approach- ing Megatesla levels. In relativistically transparent plasmas, these fields can enhance direct laser acceleration and allow efficient gamma-ray emission by accelerated electrons. However, due to the so-called magnetic suppression effect, the magnetic field can also affect radiating elec- tron trajectories and, thus, reduce the emission probability of the bremsstrahlung. This is the first study to examine the bremsstrahlung sup- pression mechanism in the context of high-intensity laser&amp;ndash;plasma interactions. Our paper describes a new module that integrates the suppression effect into the standard bremsstrahlung module of the EPOCH particle-in-cell code by considering the impact of magnetic fields and extending the analysis to electric fields. We also investigate this suppressing mechanism&amp;rsquo;s effect on the emitting electron&amp;rsquo;s dynamics. Our findings show that this mechanism not only suppresses low-energy emissions but also has an impact on the dynamics of the radiating electrons.&lt;/p&gt;</dct:description>
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