Maximum attainable ion energy in the radiation pressure acceleration regime

2015 ◽  
Author(s):  
S. S. Bulanov ◽  
E. Esarey ◽  
C. B. Schroeder ◽  
S. V. Bulanov ◽  
T. Z. Esirkepov ◽  
...  
Keyword(s):  
Radiation Pressure ◽  
Ion Energy

Dependence of the ion energy on the parameters of the laser pulse and target in the radiation-pressure-dominated regime of acceleration

2010 ◽  
Vol 36 (1) ◽  
pp. 15-29 ◽  
Author(s):  
E. Yu. Echkina ◽  
I. N. Inovenkov ◽  
T. Zh. Esirkepov ◽  
F. Pegoraro ◽  
M. Borghesi ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Radiation Pressure ◽  
Ion Energy

scholarly journals Reducing ion energy spread in hole-boring radiation pressure acceleration by using two-ion-species targets

2015 ◽  
Vol 33 (1) ◽  
pp. 103-107 ◽  
Author(s):  
S. M. Weng ◽  
M. Murakami ◽  
Z. M. Sheng
Keyword(s):  
Radiation Pressure ◽  
Laser Pulses ◽  
Ion Beams ◽  
Energy Spread ◽  
Intense Laser ◽  
Ion Energy ◽  
Fast Ions ◽  
Intense Laser Pulses ◽  
Fast Ion ◽  
Ion Species

AbstractThe generation of fast ion beams in the hole-boring radiation pressure acceleration by intense laser pulses has been studied for targets with different ion components. We find that the oscillation of the longitudinal electric field for accelerating ions can be effectively suppressed by using a two-ion-species target, because fast ions from a two-ion-species target are distributed into more bunches and each bunch bears less charge. Consequently, the energy spread of ion beams generated in the hole-boring radiation pressure acceleration can be greatly reduced down to 3.7% according to our numerical simulation.

scholarly journals Optimization of relativistic laser–ion acceleration

2014 ◽  
Vol 2 ◽  
Author(s):  
J. Schreiber ◽  
F. Bell ◽  
Z. Najmudin
Keyword(s):  
Radiation Pressure ◽  
Pulse Energy ◽  
Laser System ◽  
Target Thickness ◽  
Ion Acceleration ◽  
Essential Property ◽  
Ion Energy ◽  
Starting Point ◽  
Ion Energies ◽  
Acceleration Model

Abstract Experiments have shown that the ion energy obtained by laser–ion acceleration can be optimized by choosing either the appropriate pulse duration or the appropriate target thickness. We demonstrate that this behavior can be described either by the target normal sheath acceleration model of Schreiber et al. or by the radiation pressure acceleration model of Bulanov and coworkers. The starting point of our considerations is that the essential property of a laser system for ion acceleration is its pulse energy and not its intensity. Maybe surprisingly we show that higher ion energies can be reached with reduced intensities.

scholarly journals Radiation pressure acceleration: The factors limiting maximum attainable ion energy

2016 ◽  
Vol 23 (5) ◽  
pp. 056703 ◽  
Author(s):  
S. S. Bulanov ◽  
E. Esarey ◽  
C. B. Schroeder ◽  
S. V. Bulanov ◽  
T. Zh. Esirkepov ◽  
...  
Keyword(s):  
Radiation Pressure ◽  
Ion Energy

scholarly journals Radiation pressure acceleration of protons from structured thin-foil targets

2021 ◽  
Vol 87 (6) ◽  
Author(s):  
Tim Arniko Meinhold ◽  
Naveen Kumar
Keyword(s):  
Radiation Pressure ◽  
Lower Energy ◽  
Target Surface ◽  
Thin Foil ◽  
Radiation Reaction ◽  
Energy Spread ◽  
Ion Energy

The process of radiation pressure acceleration (RPA) of ions is investigated with the aim of suppressing the Rayleigh–Taylor-like transverse instabilities in laser–foil interaction. This is achieved by imposing surface and density modulations on the target surface. We also study the efficacy of RPA of ions from density modulated and structured targets in the radiation dominated regime where the radiation reaction effects are important. We show that the use of density modulated and structured targets and the radiation reaction effects can help in achieving the twin goals of high ion energy (in GeV range) and lower energy spread.

scholarly journals Enhancement of Maximum Attainable Ion Energy in the Radiation Pressure Acceleration Regime Using a Guiding Structure

2015 ◽  
Vol 114 (10) ◽  
Author(s):  
S. S. Bulanov ◽  
E. Esarey ◽  
C. B. Schroeder ◽  
S. V. Bulanov ◽  
T. Zh. Esirkepov ◽  
...  
Keyword(s):  
Radiation Pressure ◽  
Ion Energy

Carbon Film Deposition On Silicon Using Low Energy Ion Beams

1991 ◽  
Vol 223 ◽  
Author(s):  
Qin Fuguang ◽  
Yao Zhenyu ◽  
Ren Zhizhang ◽  
S.-T. Lee ◽  
I. Bello ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Ion Beam ◽  
Carbon Film ◽  
Carbon Films ◽  
Film Deposition ◽  
Ion Energy ◽  
Transmission Electron ◽  
Higher Temperature ◽  
Post Implantation ◽  
Beam Deposition

ABSTRACTDirect ion beam deposition of carbon films on silicon in the ion energy range of 15–500eV and temperature range of 25–800°C has been studied using mass selected C+ ions under ultrahigh vacuum. The films were characterized with X-ray photoelectron spectroscopy, Raman spectroscopy, and transmission electron microscopy and diffraction analysis. Films deposited at room temperature consist mainly of amorphous carbon. Deposition at a higher temperature, or post-implantation annealing leads to formation of microcrystalline graphite. A deposition temperature above 800°C favors the formation of microcrystalline graphite with a preferred orientation in the (0001) direction. No evidence of diamond formation was observed in these films.

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