scholarly journals Laser-plasma proton acceleration with a combined gas-foil target

2020 ◽  
Vol 22 (10) ◽  
pp. 103068 ◽  
Author(s):  
Dan Levy ◽  
Constantin Bernert ◽  
Martin Rehwald ◽  
Igor A. Andriyash ◽  
Stefan Assenbaum ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Proton Acceleration ◽  
Foil Target

scholarly journals Highly intensified emission of laser-accelerated electrons from a foil target through an additional rear laser plasma

2018 ◽  
Vol 21 (4) ◽  
Author(s):  
Shunsuke Inoue ◽  
Yoshihide Nakamiya ◽  
Kensuke Teramoto ◽  
Masaki Hashida ◽  
Shuji Sakabe
Keyword(s):  
Laser Plasma ◽  
Accelerated Electrons ◽  
Foil Target

ENERGETIC PROTON ACCELERATION BY ULTRAINTENSE LASER PULSES IN INHOMOGENEOUS PLASMA TARGETS

2007 ◽  
Vol 21 (03n04) ◽  
pp. 642-646 ◽  
Author(s):  
A. ABUDUREXITI ◽  
Y. MIKADO ◽  
T. OKADA
Keyword(s):  
Laser Pulse ◽  
Inhomogeneous Plasma ◽  
Laser Pulses ◽  
Proton Acceleration ◽  
Particle In Cell ◽  
Target Plasma ◽  
Plasma Target ◽  
Experimental Process ◽  
Foil Target ◽  
Proton Bunch

Particle-in-Cell (PIC) simulations of fast particles produced by a short laser pulse with duration of 40 fs and an intensity of 1020W/cm2 interacting with a foil target are performed. The experimental process is numerically simulated by considering a triangular concave target illuminated by an ultraintense laser. We have demonstrated increased acceleration and higher proton energies for triangular concave targets. We also determined the optimum target plasma conditions for maximum proton acceleration. The results indicated that a change in the plasma target shape directly affects the degree of contraction accelerated proton bunch.

scholarly journals Observation of Preformed Plasma Generated from a Thin-Foil Target for Laser-Driven Proton Acceleration

2014 ◽  
Vol 42 (2) ◽  
pp. 160
Author(s):  
Akito SAGISAKA ◽  
Alexander S. PIROZHKOV ◽  
Mamiko NISHIUCHI ◽  
Koichi OGURA ◽  
Hironao SAKAKI ◽  
...  
Keyword(s):  
Thin Foil ◽  
Proton Acceleration ◽  
Foil Target ◽  
Preformed Plasma

scholarly journals An effect of the target position relative to the laser focus on X-ray emission from the laser plasma

1992 ◽  
Vol 10 (4) ◽  
pp. 743-751 ◽  
Author(s):  
M. Chvojka ◽  
B. Králiková ◽  
E. Krouský ◽  
L. Láska ◽  
K. Maŝek ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Laser System ◽  
Broad Band ◽  
Plasma Temperature ◽  
Target Position ◽  
Resonant Line ◽  
X Ray ◽  
Laser Focus ◽  
Foil Target ◽  
Band Spectra

The first harmonics beam generated by an iodine laser system was focused by an f/2 optics on an Al foil target. The X-ray output from the laser plasma both in the line and broad-band spectra was registered over an interval around the “ideal” focus. It was found that the maximum X-ray power is not obtained in the focus itself but for a somewhat larger focal spot outside the focus. To explain this phenomena, temperature and density measurements were in addition made. The plasma temperature evaluated from both the line (He-like Al XII resonant line and j, k, l satellites) and broad-band spectra (two foil method) was also measured and found to be largely constant in the vicinity of the focus. The line and broad-band temperatures differ, the broad-band temperature being about 25% higher. The electron density was equally determined using an intercombination line.

Proton acceleration from vacuum-gapped double-foil target with low-contrast picosecond intense laser

2018 ◽  
Vol 25 (7) ◽  
pp. 073108 ◽  
Author(s):  
W. Q. Wei ◽  
X. H. Yuan ◽  
Y. Fang ◽  
G. Q. Liao ◽  
H. H. An ◽  
...  
Keyword(s):  
Intense Laser ◽  
Proton Acceleration ◽  
Low Contrast ◽  
Foil Target

Laser plasma proton acceleration experiments using foam-covered and grating targets

2013 ◽  
Author(s):  
A. Sgattoni ◽  
T. Ceccotti ◽  
V. Floquet ◽  
A. Bigongiari ◽  
M. Raynaud ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Proton Acceleration

scholarly journals AN EXPERIMENTAL STUDY OF THE RELATIONSHIP BETWEEN SLABE, HALF-CYLINDER AND FOIL TARGET STRUCTURE AND ITS LASER PLASMA PARAMETERS DISTRIBUTION

1993 ◽  
Vol 42 (5) ◽  
pp. 785
Author(s):  
HAN SHEN-SHENG ◽  
XU ZHI-ZHAN ◽  
JIANG ZHI-MING ◽  
LI YUE-LIN ◽  
WANG XIAO-FANG ◽  
...  
Keyword(s):  
Experimental Study ◽  
Laser Plasma ◽  
Target Structure ◽  
Plasma Parameters ◽  
Foil Target ◽  
The Relationship

scholarly journals High quality GeV proton beams from a density-modulated foil target

2009 ◽  
Vol 27 (4) ◽  
pp. 611-617 ◽  
Author(s):  
T.P. Yu ◽  
M. Chen ◽  
A. Pukhov
Keyword(s):  
Laser Intensity ◽  
Laser Pulses ◽  
Two Dimensional ◽  
High Quality ◽  
Proton Acceleration ◽  
Circularly Polarized ◽  
Particle In Cell ◽  
Efficient Energy ◽  
Peak Energy ◽  
Foil Target

AbstractWe study proton acceleration from a foil target with a transversely varying density using multi-dimensional Particle-in-Cell (PIC) simulations. In order to reduce electron heating and deformation of the target, circularly polarized Gaussian laser pulses at intensities on the order of 1022 Wcm−2 are used. It is shown that when the target density distribution fits that of the laser intensity profile, protons accelerated from the center part of the target have quasi-monoenergetic spectra and are well collimated. In our two-dimensional PIC simulations, the final peak energy can be up to 1.4 GeV with the full-width of half maximum divergence cone of less than 4°. We observe highly efficient energy conversion from the laser to the protons in the simulations.

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