High-Charge, Multi-MeV Electron Bunches Accelerated in Moderate Laser-Plasma Interaction Regime

Cecchetti, C. A.; Betti, S.; Gamucci, A.; Giulietti, A.; Giulietti, Danilo; Koester, P.; Labate, L.; Patak, N.; Vittori, F.; Ciricosta, O.; Gizzi, L. A.

doi:10.1063/1.3326309

Cited by 5 publications

(2 citation statements)

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“…In LWFA, plasma waves excited by an ultrashort laser pulse propagating through an under-dense plasma trap and accelerate electrons to relativistic velocities. For the past two decades, the LWFA community focused on optimizing the accelerated beam quality for higher particle energy ( 1 – 3 ), sharper energy spectrum ( 4 , 5 ), higher charge ( 6 , 7 ), and improved repeatability ( 8 ). Applications for LWFA electron beams ( 9 ) are now becoming a reality ( 10 ).…”

Section: Introductionmentioning

confidence: 99%

Undepleted direct laser acceleration

Cohen,

Meir,

Tangtartharakul

et al. 2024

Sci. Adv.

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Intense lasers enable generating high-energy particle beams in university-scale laboratories. With the direct laser acceleration (DLA) method, the leading part of the laser pulse ionizes the target material and forms a positively charged ion plasma channel into which electrons are injected and accelerated. The high energy conversion efficiency of DLA makes it ideal for generating large numbers of photonuclear reactions. In this work, we reveal that, for efficient DLA to prevail, a target material of sufficiently high atomic number is required to maintain the injection of ionization electrons at the peak intensity of the pulse when the DLA channel is already formed. We demonstrate experimentally and numerically that, when the atomic number is too low, the target is depleted of its ionization electrons prematurely. Applying this understanding to multi-petawatt laser experiments is expected to result in increased neutron yields, a perquisite for a wide range of research and applications.

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Section: Introductionmentioning

confidence: 99%

Undepleted direct laser acceleration

Cohen,

Meir,

Tangtartharakul

et al. 2024

Sci. Adv.

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“…Gaseous targets are a common choice for laser generation of high-quality electron beams. For the past 2 decades, the laser wakefield community focused on optimizing the accelerated beam quality for higher particle energy [28], sharper energy spectrum [29], higher charge [30], and improved repeatability.…”

Section: Introductionmentioning

confidence: 99%

Optically Switchable MeV Ion/Electron Accelerator

et al. 2021

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The versatility of laser accelerators in generating particle beams of various types is often promoted as a key applicative advantage. These multiple types of particles, however, are generated on vastly different irradiation setups, so that switching from one type to another involves substantial mechanical changes. In this letter, we report on a laser-based accelerator that generates beams of either multi-MeV electrons or ions from the same thin-foil irradiation setup. Switching from generation of ions to electrons is achieved by introducing an auxiliary laser pulse, which pre-explodes the foil tens of ns before irradiation by the main pulse. We present an experimental characterization of the emitted beams in terms of energy, charge, divergence, and repeatability, and conclude with several examples of prospective applications for industry and research.

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Laser Induced Nuclear Fusion, LINF, In Muonic Molecules With Ultrashort Super Intense Laser Fields

Bandrauk¹,

Paramonov²

2010

AIP Conference Proceedings

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High-Charge, Multi-MeV Electron Bunches Accelerated in Moderate Laser-Plasma Interaction Regime

Cited by 5 publications

References 0 publications

Undepleted direct laser acceleration

Undepleted direct laser acceleration

Optically Switchable MeV Ion/Electron Accelerator

Laser Induced Nuclear Fusion, LINF, In Muonic Molecules With Ultrashort Super Intense Laser Fields

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