TY - GEN
T1 - Generation and characterization of quasi-monoenergetic electron beams from laser wakefield
AU - Maksimchuk, A.
AU - Reed, S.
AU - Naumova, N.
AU - Chvykov, V.
AU - Hou, B.
AU - Kalintchenko, G.
AU - Matsuoka, T.
AU - Nees, J.
AU - Rousseau, P.
AU - Mourou, G.
AU - Yanovsky, V.
PY - 2006/6/1
Y1 - 2006/6/1
N2 - In the interaction of a 30 fs, 40 TW Ti:sapphire Hercules laser focused to the intensity of 1019 W/cm2onto a supersonic He gas jet, we observed quasi-monoenergetic electron beams with energy up to 300 MeV and an angular divergence of 10 mrad. We found that the initial plasma density significantly affects the resultant electron beam. For plasma densities ranging between 2 × 1019 to 3.5 × 1019 cm -3, quasimonoenergetic electrons with energies from 80 to 160 MeV and a total charge of about 0.5 nC were produced. Lower plasma densities around 1.5 × 10"cm-3 produced quasi-monoenergetic electron beams with higher energy, up to 320 ±50 MeV, but with a decrease of the total charge to about 5 pC. Characterization of the electron beam in terms of the electron's maximum energy, beam divergence and pointing stability is presented. The performed 2D PIC simulations show the evolution of the laser pulse in the plasma, electron injection, and the specifics of electron acceleration.
AB - In the interaction of a 30 fs, 40 TW Ti:sapphire Hercules laser focused to the intensity of 1019 W/cm2onto a supersonic He gas jet, we observed quasi-monoenergetic electron beams with energy up to 300 MeV and an angular divergence of 10 mrad. We found that the initial plasma density significantly affects the resultant electron beam. For plasma densities ranging between 2 × 1019 to 3.5 × 1019 cm -3, quasimonoenergetic electrons with energies from 80 to 160 MeV and a total charge of about 0.5 nC were produced. Lower plasma densities around 1.5 × 10"cm-3 produced quasi-monoenergetic electron beams with higher energy, up to 320 ±50 MeV, but with a decrease of the total charge to about 5 pC. Characterization of the electron beam in terms of the electron's maximum energy, beam divergence and pointing stability is presented. The performed 2D PIC simulations show the evolution of the laser pulse in the plasma, electron injection, and the specifics of electron acceleration.
U2 - 10.1051/jp4:2006133228
DO - 10.1051/jp4:2006133228
M3 - Conference contribution
AN - SCOPUS:33749333594
SN - 2868839258
SN - 9782868839251
T3 - Journal De Physique. IV : JP
SP - 1123
EP - 1126
BT - Proceedings - IFSA 2005
T2 - IFSA 2005: Inertial Fusion Sciences and Applications 2005
Y2 - 4 September 2005 through 9 September 2005
ER -