scholarly journals Influence of a laser profile in impedance mismatch techniques applied to carbon EOS measurement

2013 ◽  
Vol 1 (2) ◽  
pp. 102-104 ◽  
Author(s):  
A. Aliverdiev ◽  
D. Batani ◽  
R. Dezulian

AbstractWe present a recent numerical analysis of impedance mismatch technique applied to carbon equation of state measurements. We consider high-power laser pulses with a Gaussian temporal profile of different durations. We show that for the laser intensity (${\approx }1{0}^{14} ~\mathrm{W} / {\mathrm{cm} }^{2} $) and the target design considered in this paper we need to have laser pulses with rise-time less than 150 ps.

2022 ◽  
Vol 17 (01) ◽  
pp. C01049
Author(s):  
G. Costa ◽  
M.P. Anania ◽  
A. Biagioni ◽  
F.G. Bisesto ◽  
M. Del Franco ◽  
...  

Abstract Plasma-based technology promises a tremendous reduction in size of accelerators used for research, medical, and industrial applications, making it possible to develop tabletop machines accessible for a broader scientific community. The use of high-power laser pulses on gaseous targets is a promising method for the generation of accelerated electron beams at energies on the GeV scale, in extremely small sizes, typically millimetres. The gaseous target in question can be a collimated supersonic gasjet from a nozzle. In this work, a technique for optimising the so generated plasma channel is presented. In detail, a study on the influence of the nozzle throat shape in relation to the uniformity and density of the generated plasma profile is reported. These considerations are discussed first of all from a theoretical point of view, by means of a stationary one-dimensional mathematical model of the neutral gas, thus exploiting the possibility of comparing the properties of the output flow for different nozzle geometries. This is combined with an experimental approach using interferometric longitudinal density measurements of the plasma channel. The latter is generated by a high-power laser pulse focused on a helium gasjet, in the SPARC_LAB laboratories.


2009 ◽  
Author(s):  
A. Rodriguez ◽  
M. Ellman ◽  
I. Ayerdi ◽  
N. Perez ◽  
S. M. Olaizola ◽  
...  

1993 ◽  
Author(s):  
Zdzislaw Jankiewicz ◽  
Jerzy Szydlak ◽  
Waldemar Zendzian

2019 ◽  
Vol 49 (8) ◽  
pp. 788-795
Author(s):  
V V Kulagin ◽  
V N Kornienko ◽  
V A Cherepenin ◽  
D N Gupta ◽  
H Suk

2006 ◽  
Vol 49 (2) ◽  
pp. 274-279
Author(s):  
D. V. Abramov ◽  
S. M. Arakelyan ◽  
A. F. Galkin ◽  
I. I. Klimovskii ◽  
A. O. Kucherik ◽  
...  

Author(s):  
Andrey Sergeev ◽  
Anatoly Boreysho ◽  
Andrey Savin ◽  
Alexey Kolychev ◽  
Oleg Petrov

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