Efficiency of ion acceleration by a relativistically strong laser pulse in an underdense plasma

Kuznetsov, Alex V.; Esirkepov, T. Zh.; Kamenets, F. F.; Bulanov, Sergei V.

doi:10.1134/1.1354219

Cited by 86 publications

(67 citation statements)

References 10 publications

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“…Thus we consider two mechanisms of laser ion acceleration relevant to these targets and able to provide necessary peak energy. In the case of a very thin liquid target it is RPA [17,26,27], and in the case of a gas target it is MVA [18,19,28].…”

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confidence: 99%

“…In principle, the available laser power and the properties of the target make it possible to choose the regime of interaction that would allow us to optimize the parameters of the produced ion beam. There are several basic laser ion acceleration mechanisms: (i) target normal sheath acceleration (TNSA) [15], (ii) Coulomb explosion (CE) [16], (iii) radiation pressure acceleration (RPA) [17], (iv) magnetic vortex acceleration (MVA) [18,19], and (v) the shock wave acceleration (SWA) [20]. There are also several mechanisms that through either modification or combination of some of the basic regimes enhance the maximum ion energy, number of accelerated ions, or improve their spectrum.…”

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confidence: 99%

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Helium-3 and helium-4 acceleration by high power laser pulses for hadron therapy

Bulanov

Esarey

Schroeder

et al. 2015

Phys. Rev. ST Accel. Beams

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The laser driven acceleration of ions is considered a promising candidate for an ion source for hadron therapy of oncological diseases. Though proton and carbon ion sources are conventionally used for therapy, other light ions can also be utilized. Whereas carbon ions require 400 MeV per nucleon to reach the same penetration depth as 250 MeV protons, helium ions require only 250 MeV per nucleon, which is the lowest energy per nucleon among the light ions (heavier than protons). This fact along with the larger biological damage to cancer cells achieved by helium ions, than that by protons, makes this species an interesting candidate for the laser driven ion source. Two mechanisms (magnetic vortex acceleration and hole-boring radiation pressure acceleration) of PW-class laser driven ion acceleration from liquid and gaseous helium targets are studied with the goal of producing 250 MeV per nucleon helium ion beams that meet the hadron therapy requirements. We show that He 3 ions, having almost the same penetration depth as He 4 with the same energy per nucleon, require less laser power to be accelerated to the required energy for the hadron therapy.

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confidence: 99%

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confidence: 99%

Helium-3 and helium-4 acceleration by high power laser pulses for hadron therapy

Bulanov

Esarey

Schroeder

et al. 2015

Phys. Rev. ST Accel. Beams

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“…The laser pulse will generate a channel in the NCD plasma [22][23][24]62] both in electron and ion densities. The laser will propagate in this channel pushing the irradiated part of the foil in front of it.…”

Section: Transverse Expansion Effectmentioning

confidence: 99%

“…Under this condition the laser pulse deposits almost all its energy in the plasma producing a large number of fast electrons in the vicinity of the target rear surface. This results in quasi-static magnetic field generation at the plasma vacuum interface by the electric current carried by fast electrons [38], which is crucially important for the magnetic vortex acceleration mechanism realization [22][23][24]. We note that effectively the ion acceleration mechanisms in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The basic mechanisms of acceleration are (i) Target Normal Sheath Acceleration (TNSA) [19], (ii) Coulomb Explosion (CE) [20], (iii) Radiation Pressure Acceleration (RPA) [21], and (iv) Magnetic Vortex Acceleration (MVA) [22][23][24]. There are also several composite mechanisms, which are the either the combinations of basic ones or somehow the enhancement of the basic ones, such as Break-Out-Afterburner (BOA) [25], Shock Wave Acceleration (SWA) [26], Relativistic Transparency (RT) [27], and Directed Coulomb Explosion (DCE) [28].…”

Section: Introductionmentioning

confidence: 99%

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Radiation pressure acceleration: The factors limiting maximum attainable ion energy

et al. 2016

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Radiation pressure acceleration (RPA) is a highly efficient mechanism of laser-driven ion acceleration, with with near complete transfer of the laser energy to the ions in the relativistic regime. However, there is a fundamental limit on the maximum attainable ion energy, which is determined by the group velocity of the laser. The tightly focused laser pulses have group velocities smaller than the vacuum light speed, and, since they offer the high intensity needed for the RPA regime, it is plausible that group velocity effects would manifest themselves in the experiments involving tightly focused pulses and thin foils. However, in this case, finite spot size effects are important, and another limiting factor, the transverse expansion of the target, may dominate over the group velocity effect. As the laser pulse diffracts after passing the focus, the target expands accordingly due to the transverse intensity profile of the laser. Due to this expansion, the areal density of the target decreases, making it transparent for radiation and effectively terminating the acceleration. The off-normal incidence of the laser on the target, due either to the experimental setup, or to the deformation of the target, will also lead to establishing a limit on maximum ion energy.

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Generation of Quantum Beams in Large Clusters Irradiated by Super‐Intense, High – Contrast Femtosecond Laser Pulses

Faenov¹,

Pikuz²,

Fukuda³

et al. 2013

Contrib. Plasma Phys.

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A short review of our experimental studies on generation of photon and particle beams in submicron clusters irradiated by intense, high-contrast (∼ 10 8 -10 10 ) femtosecond laser pulses is presented. It is shown that highlyefficient laser-cluster interaction allows creating bright sources of X-ray, high-energy electron and ion beams. The examples of applications of femtosecond-laser-produced cluster plasmas (FLPCP) for X-ray and ion beams radiography are presented.

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Efficiency of ion acceleration by a relativistically strong laser pulse in an underdense plasma

Cited by 86 publications

References 10 publications

Helium-3 and helium-4 acceleration by high power laser pulses for hadron therapy

Helium-3 and helium-4 acceleration by high power laser pulses for hadron therapy

Radiation pressure acceleration: The factors limiting maximum attainable ion energy

Generation of Quantum Beams in Large Clusters Irradiated by Super‐Intense, High – Contrast Femtosecond Laser Pulses

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