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proton acceleration

High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets

High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets

... laser-proton acceleration enhancement is investigated using the simplest of target designs to demonstrate application-relevant levels of energy conversion efficiency between laser and ...

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Proton acceleration enhanced by a plasma jet in expanding foils undergoing relativistic transparency

Proton acceleration enhanced by a plasma jet in expanding foils undergoing relativistic transparency

... laser-driven proton acceleration from ultrathin target foils undergoing expansion and RIT is experimentally and numerically ...the proton beam is ...laser acceleration of electrons which are ...

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Diagnosis of Weibel instability evolution in the rear surface scale lengths of laser solid interactions via proton acceleration

Diagnosis of Weibel instability evolution in the rear surface scale lengths of laser solid interactions via proton acceleration

... the acceleration dynamics that may be encountered on such systems, where pulse delays on the order of tens of picoseconds are introduced 4 ...of proton acceleration in this regime is reduced, through ...

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Characterization of multiterawatt laser-solid interactions for proton acceleration

Characterization of multiterawatt laser-solid interactions for proton acceleration

... of proton acceleration by short-pulse laser–solid interactions at intensities up to 10 19 W cm ⫺ 2 is ...study proton acceleration as a function of various laser and target ...maximum ...

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Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets

Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets

... In this paper, we report on the effects of controlled front surface plasma expansion on proton acceleration at the rear of thin metallic foils in the ultraintense picosecond laser pulse regime. It is in ...

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Hollow microspheres as targets for staged laser-driven proton acceleration

Hollow microspheres as targets for staged laser-driven proton acceleration

... We have introduced a new scheme for staged laser-driven proton acceleration, using hollow microspheres as targets. On the one side of a microsphere, protons are accelerated by TNSA from the concave inner ...

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Modelling cosmic ray ground level enhancements and relativistic solar proton acceleration

Modelling cosmic ray ground level enhancements and relativistic solar proton acceleration

... 2006, 2007 included low-energy spacecraft observations of proton intensities in spectral fits to determine the mechanism/s responsible for relativistic particle acceleration for the 14 J[r] ...

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Towards optical polarization control of laser-driven proton acceleration in foils undergoing relativistic transparency

Towards optical polarization control of laser-driven proton acceleration in foils undergoing relativistic transparency

... laser-wakefield acceleration of electrons in low-density plasma by the formation and control of ionized channels 4 or ‘bubbles’ 5 created by electron expulsion and ...ion acceleration 2,3 , high flux ...

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Towards optical polarization control of laser-driven proton acceleration in foils undergoing relativistic transparency

Towards optical polarization control of laser-driven proton acceleration in foils undergoing relativistic transparency

... It has also been shown to result in the formation of an electron jet, leading to energy enhancement in sheath-accelerated protons 24,25 and to ion beams with a relatively narrow energy spread 26 . Understanding the ...

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Enhancement of proton energy by polarization switch in laser acceleration of multi-ion foils

Enhancement of proton energy by polarization switch in laser acceleration of multi-ion foils

... particle acceleration schemes for medical applications such as proton cancer therapy, where the proton energy is required to be tunable in the range of 50–250 MeV and to be monoenergetic in order to ...

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Energetic particle signatures above Saturn’s aurorae

Energetic particle signatures above Saturn’s aurorae

... upward proton beams are observed to reach ener- gies of several tens of keV; the associated precipitating electron populations are found to have mean energies of about 10 ...auroral acceleration; about 100 ...

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Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion

Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion

... MeV proton beam with a modest laser power of 70 TW by combining the RPA and shielded Coulomb repulsion (SCR), using a multi-ion foil made of majority carbon (90%) and minority hydrogen ...of acceleration ...

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Characterization of proton and heavier ion acceleration in ultrahigh-intensity laser interactions with heated target foils

Characterization of proton and heavier ion acceleration in ultrahigh-intensity laser interactions with heated target foils

... Proton acceleration from the front and rear surfaces of the Fe target foils was also diagnosed for the same heated and unheated shots by measuring 共 p , n 兲 reactions in 63 ...The proton energy ...

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Multi-pulse enhanced laser ion acceleration using plasma half cavity targets

Multi-pulse enhanced laser ion acceleration using plasma half cavity targets

... the proton conversion ...enhance proton acceleration and increase the maxi- mum proton energy; 16 this is attributed to self focusing and absorption of the laser beam in the ...to ...

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Proton-air and proton-proton cross sections

Proton-air and proton-proton cross sections

... The proton-air interaction length is the quantity that di- rectly determines the longitudinal development of exten- sive air ...the proton-air cross section. In or- der to derive a more fundamental ...

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Buffered high charge spectrally-peaked proton beams in the relativistic-transparency regime

Buffered high charge spectrally-peaked proton beams in the relativistic-transparency regime

...   full-angle. The dose deposited in each layer of the stack is dominated by a small range of proton energies, E , which have their Bragg peak in the sensitive layer in the RCF. There is a further lesser ...

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The acceleration dilemma : can English law accommodate constructive acceleration?

The acceleration dilemma : can English law accommodate constructive acceleration?

... ‘constructive acceleration’ more generally to describe acceleration implemented unilaterally to avoid liquidated damages where the certifier stalls, disputes, or obfuscates in dealing with time extension ...

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Mitochondrial proton leak compensates for reduced oxidative power during frequent hypothermic events in a protoendothermic mammal, Echinops telfairi

Mitochondrial proton leak compensates for reduced oxidative power during frequent hypothermic events in a protoendothermic mammal, Echinops telfairi

... that proton leak respiration at the highest common membrane potential was not affected by acclimation temperature but was markedly decreased by assay ...of proton leak, thus maintaining the efficiency of ...

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Resonance Production with the LHCb Experiment

Resonance Production with the LHCb Experiment

... both proton-proton and proton-lead colli- sions are presented, with particular emphasis on charmonium production including the production of ...

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Renormalization of Proton-Proton Scattering and Proton-Proton Fusion with Chiral Two Pion Exchange: Regulator Independent Results.

Renormalization of Proton-Proton Scattering and Proton-Proton Fusion with Chiral Two Pion Exchange: Regulator Independent Results.

... sion. By renormalization I refer to (i) the possibility of expressing all observables in terms of other physical ob- servables and the physical parameters of the long range in- teraction and (ii) achieving regulator ...

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