Plasma scale length and quantum electrodynamics effects on particle acceleration at extreme laser plasmas

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dc.authorid0000-0002-3638-5163en_US
dc.authorid0000-0002-2614-5860en_US
dc.contributor.authorCulfa, Özgür
dc.contributor.authorSağır, Sinan
dc.date.accessioned2021-12-02T08:25:01Z
dc.date.available2021-12-02T08:25:01Z
dc.date.issued2021en_US
dc.departmentKMÜ, Kamil Özdağ Fen Fakültesi, Fizik Bölümüen_US
dc.descriptionWOS:000718313900001en_US
dc.description.abstractIn this work, simulations of multipetawatt lasers at irradiances, striking solid targets and implementing two-dimensional particle-in-cell code was used to study particle acceleration. Preformed plasma at the front surface of a solid target increases both the efficiency of particle acceleration and the reached maximum energy by the accelerated charged particles via nonlinear plasma processes. Here, we have investigated the preformed plasma scale length effects on particle acceleration in the presence and absence of nonlinear quantum electrodynamic (QED) effects, including quantum radiation reaction and multiphoton Breit-Wheeler pair production, which become important at irradiances. Our results show that QED effects help particles gain higher energies with the presence of preformed plasma. In the results for all cases, preplasma leads to more efficient laser absorption and produces more energetic charged particles, as expected. In the case where QED is included, however, physical mechanisms changed and generated secondary particles (-rays and positrons) reversing this trend. That is, the hot electrons cool down due to QED effects, while ions gain more energy due to different acceleration methods. It is found that more energetic -rays and positrons are created with increasing scale length due to high laser conversion efficiency (24 % for -rays and 4 % for positrons at scale length), which affects the ion and electron acceleration mechanisms. It is also observed that the QED effect reduces the collimation of angular distribution of accelerated ions because the dominant ion acceleration mechanism is changing when QED is involved in the process.en_US
dc.identifier.citationCulfa, O., & Sağır, S. (2021). Plasma scale length and quantum electrodynamics effects on particle acceleration at extreme laser plasmas. Journal of Plasma Physics, 87(6) doi:10.1017/S0022377821000982en_US
dc.identifier.doi10.1017/S0022377821000982
dc.identifier.issn0022-3778
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85119480107
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1017/S0022377821000982
dc.identifier.urihttps://hdl.handle.net/11492/5560
dc.identifier.volume87en_US
dc.identifier.wosWOS:000718313900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorCulfa, Özgür
dc.institutionauthorSağır, Sinan
dc.language.isoen
dc.publisherCambridge University Pressen_US
dc.relation.journalJournal of Plasma Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLaser-Plasma Interactionsen_US
dc.subjectParticle Accelerationen_US
dc.subjectPıc Simulationsen_US
dc.titlePlasma scale length and quantum electrodynamics effects on particle acceleration at extreme laser plasmasen_US
dc.typeArticle

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