Comparison of front and rear surface fs-laser ion acceleration from fusion neutron spectroscopy

2003 ◽  
Author(s):  
S. Karsch ◽  
D. Habs ◽  
S. Dusterer ◽  
H. Schwoerer ◽  
F. Ewald ◽  
...  
Keyword(s):  
Rear Surface ◽  
Ion Acceleration ◽  
Neutron Spectroscopy ◽  
Fusion Neutron ◽  
Fs Laser

scholarly journals The generation of images of surface structures by laser-accelerated protons

2006 ◽  
Vol 24 (1) ◽  
pp. 181-184 ◽  
Author(s):  
H. RUHL ◽  
T. COWAN ◽  
F. PEGORARO
Keyword(s):  
Laser Plasma ◽  
Rear Surface ◽  
Surface Structures ◽  
Back Surface ◽  
Ion Acceleration ◽  
Laser Acceleration ◽  
Accelerated Protons ◽  
Plasma Research ◽  
Micro Structures

Ion acceleration by lasers is one of the most important innovations in laser-plasma research in recent years. A mechanism that has gained great attention due to the remarkable properties of the accelerated beam is laser acceleration of protons from the rear surface of solid targets. A striking prediction is that these protons are capable of generating images of micro-structures present on this surface. These images might be useful to measure properties of the accelerated beam. In this article, we address the physics of the generation of images of surface structures imprinted into the target back surface with laser-accelerated protons.

Control and monitoring system for fusion neutron spectroscopy on the Joint European Torus

2004 ◽  
Vol 75 (10) ◽  
pp. 3543-3546 ◽  
Author(s):  
M. Tardocchi ◽  
G. Gorini ◽  
D. Palma ◽  
C. Sozzi ◽  
J. Källne ◽  
...  
Keyword(s):  
Monitoring System ◽  
Neutron Spectroscopy ◽  
Fusion Neutron ◽  
Control And Monitoring System

scholarly journals Effect of pre-plasma on the ion acceleration by intense ultra-short laser pulses

2018 ◽  
Vol 36 (2) ◽  
pp. 226-231 ◽  
Author(s):  
Parvin Varmazyar ◽  
Saeed Mirzanejhad ◽  
Taghi Mohsenpour
Keyword(s):  
Laser Pulses ◽  
Complete Analysis ◽  
Ion Acceleration ◽  
Destructive Effect ◽  
Particle In Cell ◽  
Solid Density ◽  
Cell Simulation ◽  
Fs Laser ◽  
Short Laser Pulses ◽  
Plasma Effect

AbstractIn the interaction of short-laser pulses with a solid density target, pre-plasma can play a major role in ion acceleration processes. So far, complete analysis of pre-plasma effect on the ion acceleration by ultra-short laser pulses in the radiation pressure acceleration (RPA) regime has been unknown. Then the effect of pre-plasma on the ion acceleration efficiency is analyzed by numerical results of the particle-in-cell simulation in the RPA regime. It is shown that, for long-laser pulses (τp > 50 fs), the presence of pre-plasma makes a destructive effect on ion acceleration while it may have a contributing effect for short-laser pulses (τp < 50 fs). Therefore, the 35 fs (20 fs) laser pulse can accelerate ions up to 40 MeV (55 eV), which is almost two (three) times larger in energy rather than use of a 100 fs pulse with the same pre-plasma scale length.

Target normal sheath ion acceleration by fs laser irradiating metal/reduced graphene oxide targets

2020 ◽  
Vol 15 (03) ◽  
pp. C03056-C03056
Author(s):  
L. Torrisi ◽  
M. Rosinski ◽  
M. Cutroneo ◽  
A. Torrisi ◽  
J. Badziak ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Ion Acceleration ◽  
Reduced Graphene ◽  
Fs Laser

Investigation of the effect of plasma waves excitation on target normal sheath ion acceleration using fs laser-irradiating hydrogenated structures

2019 ◽  
Vol 59 (8) ◽  
pp. e201900029 ◽  
Author(s):  
L. Torrisi ◽  
M. Cutroneo ◽  
A. Torrisi ◽  
M. Rosinski ◽  
A. Zaras-Szydlowska ◽  
...  
Keyword(s):  
Plasma Waves ◽  
Ion Acceleration ◽  
Fs Laser

Investigation of laser ion acceleration inside irradiated solid targets by neutron spectroscopy

2006 ◽  
Vol 13 (3) ◽  
pp. 030701 ◽  
Author(s):  
A. Youssef ◽  
R. Kodama ◽  
M. Tampo
Keyword(s):  
Ion Acceleration ◽  
Neutron Spectroscopy

scholarly journals Ion acceleration by short high intensity laser pulse in small target sets

2009 ◽  
Vol 27 (3) ◽  
pp. 449-457 ◽  
Author(s):  
A. Andreev ◽  
K. Platonov ◽  
S. Kawata
Keyword(s):  
Laser Pulse ◽  
Conversion Efficiency ◽  
High Intensity ◽  
Strong Electric Field ◽  
Ion Beam ◽  
Rear Surface ◽  
Ion Acceleration ◽  
Small Target ◽  
High Intensity Laser ◽  
Intensity Laser

AbstractIon acceleration by short, high intensity laser pulses in sets of small targets is treated by an analytical model developed here, and by two-dimensional particle-in-cell simulations. When an intense short laser pulse illuminates a thin foil target at normal incidence, electrons in the target are accelerated by the ponderomotive force. At the rear surface of the foil they generate a strong electric field that accelerates the ions, and generates an ion beam of small divergence. Using a mass-limited small target like a droplet enhances the ion energy, but increases divergence at the same time. In this paper, a combination of several-micron targets in a periodic structure (for example, a droplet chain) is proposed in order to increase the conversion efficiency from the incident laser beam to the emergent protons. Improvement of the energy flux conversion efficiency from the laser to the ion beam at optimal conditions is demonstrated.

Silicon surface barrier detector for fusion neutron spectroscopy

1986 ◽  
Vol 57 (8) ◽  
pp. 1763-1765 ◽  
Author(s):  
T. Elevant ◽  
H. W. Hendel ◽  
E. B. Nieschmidt ◽  
L. E. Samuelson
Keyword(s):  
Silicon Surface ◽  
Surface Barrier ◽  
Neutron Spectroscopy ◽  
Surface Barrier Detector ◽  
Fusion Neutron ◽  
Barrier Detector ◽  
Silicon Surface Barrier Detector
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