scholarly journals γ-ray generation enhancement by the charge separation field in laser-target interaction in the radiation dominated regime

2014 ◽  
Vol 21 (12) ◽  
pp. 123120 ◽  
Author(s):  
R. Capdessus ◽  
M. Lobet ◽  
E. d'Humières ◽  
V. T. Tikhonchuk
Keyword(s):  
Charge Separation ◽  
Laser Target ◽  
Target Interaction ◽  
Γ Ray ◽  
Separation Field

INTERFEROMETRIC MEASUREMENTS OF DENSITY PROFILES IN LASER-TARGET INTERACTION

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-767-C7-768
Author(s):  
R. Benattar ◽  
C. Popovics ◽  
R. Sigel ◽  
J. Virmont
Keyword(s):  
Laser Target ◽  
Density Profiles ◽  
Target Interaction

Numerical simulation of laser–target interaction and blast wave formation

1989 ◽  
Vol 1 (7) ◽  
pp. 1463-1476 ◽  
Author(s):  
John L. Giuliani ◽  
Margaret Mulbrandon ◽  
Ellis Hyman
Keyword(s):  
Numerical Simulation ◽  
Blast Wave ◽  
Wave Formation ◽  
Laser Target ◽  
Target Interaction

Novette: a 0.53-pm laser-target interaction system

1983 ◽  
Author(s):  
K. R. Manes ◽  
D. R. Speck ◽  
G. J. Suski ◽  
O. G. Barr ◽  
D. G. Gritton ◽  
...  
Keyword(s):  
Laser Target ◽  
Target Interaction ◽  
Interaction System

scholarly journals Ion jet generation in the ultraintense laser interactions with rear-side concave target

2010 ◽  
Vol 28 (2) ◽  
pp. 351-359 ◽  
Author(s):  
Bin Liu ◽  
Hua Zhang ◽  
Li-Bin Fu ◽  
Yu-Qiu Gu ◽  
Bao-Han Zhang ◽  
...  
Keyword(s):  
Charge Separation ◽  
Fluid Model ◽  
Critical Time ◽  
Maximum Velocity ◽  
Optimum Shape ◽  
Rear Side ◽  
Ion Density ◽  
Particle In Cell ◽  
Analytical Expressions ◽  
Separation Field

AbstractIn this paper, the ion jet generation from the interaction of an ultraintense laser pulse and a rear-side concave target is investigated analytically using a simple fluid model. We find that the ion expanding surface at the rear-side is distorted due to a strong charge-separation field, and that this distortion becomes dramatic with a singular cusp shown on the central axis at a critical time. The variation of the transverse ion velocity and the relative ion density diverge on the cusp, signaling the emergence of an on-axis ion jet. We have obtained analytical expressions for the critical time and the maximum velocity of the ion jet, and suggested an optimum shape for generating a collimated energetic ion jet. The above theoretical analysis has been verified by particle-in-cell (PIC) numerical simulations.

Influence Of Laser-Target Interaction On The Polarization Of A CO 2 -Laser

1989 ◽  
Author(s):  
Keming Du ◽  
G. Herziger ◽  
P. Loosen ◽  
W. Seelig
Keyword(s):  
Laser Target ◽  
Target Interaction

scholarly journals Plasma-laser ion discrimination by TOF technique applied to coupled SiC detectors.

2018 ◽  
Vol 167 ◽  
pp. 04003
Author(s):  
Salvatore Cavallaro
Keyword(s):  
Nuclear Reactions ◽  
Detection Efficiency ◽  
Track Detector ◽  
Wide Energy Range ◽  
Laser Target ◽  
Target Interaction ◽  
High Intensity Laser ◽  
Wide Energy ◽  
Neutron Detection Efficiency ◽  
Ion Species

The rate estimation of nuclear reactions induced in high intensity laser-target interaction (≥1016 W/cm2), is strongly depending on the neutron detection efficiency and ion charge discrimination, according to particles involved in exit open-channels. Ion discrimination is basically performed by means of analysis of pits observed on track detector, which is critically dependent on calibration and/or fast TOF devices based on SiC and diamond detectors. Last setup is used to determine the ion energy and to obtain a rough estimation of yields. However, for each TOF interval, the dependence of yield from the energy deposited in the detector sensitive region, introduces a distortion in the ion spectra. Moreover, if two ion species are present in the same spectrum, the discrimination of their contribution is not attainable. In this paper a new method is described which allows to discriminate the contribution of two ion species in the wide energy range of nuclear reactions induced in laser-target interactions. The method is based on charge response of two TOF-SiC detectors, of suitable thicknesses, placed in adjacent positions. In presence of two ion species, the response of the detectors, associated with different energy losses, can determine the ion specific contribution to each TOF interval.

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