TY  - CONF
AU  - Chitgar, Zahra M.
AU  - Gibbon, Paul
AU  - Böker, Jürgen
AU  - Lehrach, Andreas
AU  - Büscher, Markus
TI  - Enhanced betatron-radiation energy using two collinear laser pulses
VL  - 42A
PB  - European Physical Society (EPS)
M1  - FZJ-2019-06823
T2  - Europhysics Conference Abstracts
SP  - 885-889
PY  - 2018
AB  - A new self-injection scheme is proposed for the laser wakefield accelerator in the nonlinear (cavity) regime using a pair of matched, copropagating laser pulses which yields a pC electron bunch. By tuning their relative delay and intensity, the subsequent betatron radiation energy can be considerably $(\times 3)$ enhanced compared to the single pulse scheme for the same total energy. A new condition for the optimal bubble size is derived and verified by particle-in-cell simulations, demonstrating the advantages of the double-pulse scheme for self-injection.
T2  - 45th European Physical Society Conference on Plasma Physics
CY  - 2 Jul 2018 - 6 Jul 2018, Prague (Czech Republic)
Y2  - 2 Jul 2018 - 6 Jul 2018
M2  - Prague, Czech Republic
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
UR  - https://juser.fz-juelich.de/record/868265
ER  -