TY - JOUR
T1 - Fast electron propagation and energy deposition in laser shock compressed plasmas
AU - Bernardinello, A.
AU - Batani, D.
AU - Masella, V.
AU - Hall, T. A.
AU - Ellwi, S.
AU - Koenig, M.
AU - Benuzzi, A.
AU - Krishnan, J.
AU - Pisani, F.
AU - Djaoui, A.
AU - Norreys, P.
AU - Neely, D.
AU - Rose, S.
AU - Key, M. H.
AU - Fews, P.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - The first experimental study of the propagation of electrons created by an intense laser in shock-compressed matter has been performed with the VULCAN laser facility at the Rutherford Appleton Laboratory, to investigate one of the fundamental phases of the fast ignitor concept for inertial confinement fusion. Plastic plane targets were irradiated on one side with two pulsed laser beams, each with I ≈ 1014 W/cm2, t ≈ 2 ns, E ≈ 80 J per pulse, to generate a planar shock wave; on the opposite side of the target, a chirped pulse amplification (CPA) laser beam (I ≈ 1016W/cm2, t ≈ 3 ps, E ≈ 10 J) was focused to generate the fast electrons. The results show an increase of hot electron penetration in compressed matter with respect to an ordinary one. Experimental results have been analyzed with computer simulations.
AB - The first experimental study of the propagation of electrons created by an intense laser in shock-compressed matter has been performed with the VULCAN laser facility at the Rutherford Appleton Laboratory, to investigate one of the fundamental phases of the fast ignitor concept for inertial confinement fusion. Plastic plane targets were irradiated on one side with two pulsed laser beams, each with I ≈ 1014 W/cm2, t ≈ 2 ns, E ≈ 80 J per pulse, to generate a planar shock wave; on the opposite side of the target, a chirped pulse amplification (CPA) laser beam (I ≈ 1016W/cm2, t ≈ 3 ps, E ≈ 10 J) was focused to generate the fast electrons. The results show an increase of hot electron penetration in compressed matter with respect to an ordinary one. Experimental results have been analyzed with computer simulations.
U2 - 10.1017/s0263034699173208
DO - 10.1017/s0263034699173208
M3 - Article
AN - SCOPUS:0003979606
SN - 0263-0346
VL - 17
SP - 519
EP - 528
JO - Laser and Particle Beams
JF - Laser and Particle Beams
IS - 3
ER -