Brilliant gamma-ray beam and electron-positron pair production by enhanced attosecond pulses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00503454" target="_blank" >RIV/61389021:_____/18:00503454 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00501537 RIV/68407700:21340/18:00329095
Result on the web
<a href="https://www.nature.com/articles/s42005-018-0095-3" target="_blank" >https://www.nature.com/articles/s42005-018-0095-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s42005-018-0095-3" target="_blank" >10.1038/s42005-018-0095-3</a>

Result language
angličtina
Original language name
Brilliant gamma-ray beam and electron-positron pair production by enhanced attosecond pulses
Original language description
Electron-positron pair production via Breit-Wheeler process requires laser intensities approaching 10(24) W cm(-2) due to the small cross-section. Here, we propose a mechanism for brilliant gamma-ray emission and dense GeV pairs creation accompanied with high-harmonic generation by using plasma mirror and an ultra short pulse with the intensity of 3 x 10(23) W cm(-2). The laser is reflected by the solid surface after propagating tens of microns in a near-critical density plasma and breaks into short wave packets. The intensity of the reflected high order harmonic field is enhanced by the focusing and compression effects from the deformed oscillating mirror. The radiation trapped electrons emit gamma-photons while colliding with the reflected attosecond pulses. The peak intensity of the gamma-ray reaches 0.74 PW with the brilliance of 2 x 10(24) s(-1) mm(-2) mrad(-2) (0.1%BW)(-1) (at 58 MeV). A GeV positron beam is obtained with density of 4 x 10(21) cm(-3) and a particle number of 5.6 x 10(9).
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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