Enhanced relativistic-electron beam collimation using two consecutive laser pulses

Malko, S.; Vaisseau, X.; Pérez, F.; Batani, D.; Curcio, A.; Ehret, M.; Honrubia, J. J.; Jakubowska, K.; Morace, A.; Santos, J. J.; Volpe, L.

doi:10.1038/s41598-019-50401-y

Cited by 13 publications

(7 citation statements)

References 54 publications

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“…The simulation results indicate that in order to further decrease the energy bandwidth one would need to reduce the experimental proton source size using additional techniques such as wire-targets 31 , self-generated magnetic fields 32 or mass-limited targets 33 or by introducing an additional pinhole in the magnet selector with a consequent reduction of the number of selected protons.…”

Section: Resultsmentioning

confidence: 99%

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Apiñaniz

Malko

Fedosejevs

et al. 2021

Sci Rep

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We report on the development of a highly directional, narrow energy band, short time duration proton beam operating at high repetition rate. The protons are generated with an ultrashort-pulse laser interacting with a solid target and converted to a pencil-like narrow-band beam using a compact magnet-based energy selector. We experimentally demonstrate the production of a proton beam with an energy of 500 keV and energy spread well below 10$$\% $$ % , and a pulse duration of 260 ps. The energy loss of this beam is measured in a 2 $$\upmu $$ μ m thick solid Mylar target and found to be in good agreement with the theoretical predictions. The short time duration of the proton pulse makes it particularly well suited for applications involving the probing of highly transient plasma states produced in laser-matter interaction experiments. This proton source is particularly relevant for measurements of the proton stopping power in high energy density plasmas and warm dense matter.

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Section: Resultsmentioning

confidence: 99%

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Apiñaniz

Malko

Fedosejevs

et al. 2021

Sci Rep

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show abstract

“…The simulation results show that there is no major effect of divergence on the measurement of the energy bandwidth at the spectrometer (∆E P ≈ ∆E S ). The example of the MCP trace shown in Figure 6 The simulation results indicate that in order to further decrease the energy bandwidth one would need to reduce the experimental proton source size using additional techniques such as wire-targets 35 , self-generated magnetic fields 36 or mass- limited targets 37 or by introducing an additional pinhole in the magnet selector with a consequent reduction of the number of selected protons.…”

Section: Modelling Of the Minimum Selected Bandwidthmentioning

confidence: 99%

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Apiñaniz

Malko

Fedosejevs

et al. 2020

Preprint

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We report on the development of a highly directional, narrow energy band, short time duration proton beam operating at high repetition rate, suitable for measurements of stopping power in high energy density plasmas as well as other applications. The protons are generated with an ultrashort-pulse laser interacting with a solid target and converted to a pencil-like narrow-band beam using a compact magnet-based energy selector. We experimentally demonstrate the production of a proton beam with an energy of 500 keV and energy spread well below 10%, and a pulse duration of 260 ps. The energy loss of this beam is measured in a 2 µm thick solid Mylar target and found to be in within 1% of theoretical predictions. The short time duration of the proton pulse makes it particularly well suited for applications involving the probing of highly transient plasma states produced in laser-matter interaction experiments, in particular measurements of proton stopping power.

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“…The transportation of a very high current electron beam through solid density plasma is a critical problem for these applications, which all require a long transport distance. [ 21 ] The laser intensity is absorbed in a region with an electron density of 0.02–1.0 of the critical density. When these fast electrons are produced in a solid target, the return cold electron currents are concurrently produced in the background for the requirement of charge neutrality in plasma.…”

Section: Introductionmentioning

confidence: 99%

The anisotropic plasma wave in the plasma turbulence

Azadboni

2022

Contributions to Plasma Physics

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In this paper, the influence of plasma turbulence due to the sheared and body stress flow on the dispersion characteristics of the transverse electromagnetic modes in strongly coupled plasma is analysed. Using kinetic theory and solving the scattering relationship for the Vlasov‐Maxwell system, the influence of plasma turbulence on the growth of the electromagnetic mode is investigated. The minimum value of the stress rate threshold for the growth rate of electromagnetic instability in the linear polarization is higher than that of circular polarization. It is shown that the instability growth rate maximum for the circular polarization is about 100 times higher than that of the linear polarization. In the circular polarization, the value minimum of the shear stress is 1.2 times the minimum volume of the body stress. For the linear polarization, the value minimum of the body stress is 1.5 times the minimum volume of the shear stress. Increasing the density gradient of plasma leads to a higher stress threshold rate, and the range of propagation angles of growing modes is limited. With increasing steps of the density gradient plasma in the low‐density corona, electromagnetic instability occurs at a higher stress flow.

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Enhanced relativistic-electron beam collimation using two consecutive laser pulses

Cited by 13 publications

References 54 publications

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

The anisotropic plasma wave in the plasma turbulence

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