CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

High-energy gamma-ray beams from nonlinear Thomson and Compton scattering in the ultra-intense regime

Christopher Harvey (Institutionen för teknisk fysik, Kondenserade materiens teori) ; Mattias Marklund (Institutionen för teknisk fysik, Kondenserade materiens teori) ; E. Wallin
Proceedings of SPIE - Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources; Prague; Czech Republic; 15-16 April 2015 (0277-786X). Vol. 9509 (2015), p. 950908.
[Konferensbidrag, refereegranskat]

We consider the Thomson and Compton scattering of high-energy electrons in an intense laser pulse. Our simulations show that energy losses due to radiation reaction cause the emitted radiation to be spread over a broader angular range than the case without these losses included. We explain this in terms of the effect of these energy losses on the particle dynamics. Finally, at ultra-high intensities, i.e. fields with a dimensionless parameter a(0)similar to 200, the energy of the emission spectrum is significantly reduced by radiation reaction and also the classical and QED results begin to differ. This is found to be due to the classical theory overestimating the energy loss of the electrons. Such findings are relevant to radiation source development involving the next generation of high-intensity laser facilities.

Nyckelord: nonlinear Compton scattering, ultra-intense lasers, strong field QED, radiation reaction

Denna post skapades 2015-07-31. Senast ändrad 2016-01-08.
CPL Pubid: 220086


Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens teori (1900-2015)


Fusion, plasma och rymdfysik

Chalmers infrastruktur