TY - JOUR
T1 - Electron Rephasing in a Laser-Wakefield Accelerator
AU - Guillaume, E.
AU - Doepp, A.
AU - Thaury, C.
AU - Phuoc, K. Ta
AU - Lifschitz, A.
AU - Grittani, G.
AU - Goddet, J. -P.
AU - Tafzi, A.
AU - Chou, S. W.
AU - Veisz, L.
AU - Malka, V.
N1 - This work was supported by the European Research Council through the X-Five ERC project (Contract No. 339128), LA3NET (GA-ITN-2011-289191), EuCARD2/ANAC2 EC FP7 (Contract No. 312453), DFG Project Transregio TR18, and the Association EURATOM Max-Planck-Institut fuer Plasmaphysik, and by the Agence Nationale pour la Recherche through the projects ANR-10-EQPX-CILEX and FENICS ANR-12-JS04-0004-01.
PY - 2015/10/7
Y1 - 2015/10/7
N2 - An important limit for energy gain in laser-plasma wakefield accelerators is the dephasing length, after which the electron beam reaches the decelerating region of the wakefield and starts to decelerate. Here, we propose to manipulate the phase of the electron beam in the wakefield, in order to bring the beam back into the accelerating region, hence increasing the final beam energy. This rephasing is operated by placing an upward density step in the beam path. In a first experiment, we demonstrate the principle of this technique using a large energy spread electron beam. Then, we show that it can be used to increase the energy of monoenergetic electron beams by more than 50%.
AB - An important limit for energy gain in laser-plasma wakefield accelerators is the dephasing length, after which the electron beam reaches the decelerating region of the wakefield and starts to decelerate. Here, we propose to manipulate the phase of the electron beam in the wakefield, in order to bring the beam back into the accelerating region, hence increasing the final beam energy. This rephasing is operated by placing an upward density step in the beam path. In a first experiment, we demonstrate the principle of this technique using a large energy spread electron beam. Then, we show that it can be used to increase the energy of monoenergetic electron beams by more than 50%.
UR - http://www.scopus.com/inward/record.url?scp=84944035545&partnerID=8YFLogxK
U2 - https://doi.org/10.1103/PhysRevLett.115.155002
DO - https://doi.org/10.1103/PhysRevLett.115.155002
M3 - مقالة
SN - 0031-9007
VL - 115
JO - Physical review letters
JF - Physical review letters
IS - 15
M1 - 155002
ER -