Nuclear photonics: results and prospects

Nedorezov, V.; Rykovanov, S. G.; Savel’ev, A. B.

doi:10.3367/ufne.2021.03.038960

Cited by 16 publications

(7 citation statements)

References 231 publications

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“…Such beams can be formed with a controlled time delay. This opens up unique prospects for research, including metastable and unstable isotopes and their isomers [ 183 ] . It was shown in Ref.…”

Section: Exawatt Center For Extreme Light Studies Experimental Programmentioning

confidence: 99%

eXawatt Center for Extreme Light Studies

Khazanov,

Shaykin,

Kostyukov

et al. 2023

High Pow Laser Sci Eng

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The eXawatt Center for Extreme Light Studies project aimed to create a large scientific infrastructure based on lasers with giant peak power. The project relies on the significant progress achieved in the last decade. The planned infrastructure will incorporate a unique light source with a pulse power of 600 PW using optical parametric chirped pulse amplification in large-aperture KD 2 PO 4 , deuterated potassium dihydrogen phosphate crystals. The interaction of such laser radiation with matter represents a completely new fundamental physics. The direct study of the space-time structure of vacuums and other unknown phenomena at the frontier of high-energy physics and the physics of superstrong fields will be challenged. Expected applications will include the development of compact particle accelerators, the generation of ultrashort pulses of hard X-ray and gamma radiation for material science enabling one to probe material samples with unprecedented spatial and temporal resolution, the development of new radiation and particle sources, etc. The paper is translation from Russian [Kvantovaya Elektronika 53, 95 (2023)].

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Section: Exawatt Center For Extreme Light Studies Experimental Programmentioning

confidence: 99%

eXawatt Center for Extreme Light Studies

Khazanov,

Shaykin,

Kostyukov

et al. 2023

High Pow Laser Sci Eng

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“…In the latter case, laser pulses of energies limited to tens of mJ are used. Electron beams generated at systems with a high repetition rate are of interest for various applications, such as x-ray sources [7], ultrafast electron microscopy [8], investigation of the photonuclear reactions near threshold [9].…”

Section: Introductionmentioning

confidence: 99%

Quasi-monoenergetic electron beam from LWFA: analytical approach

Starodubtseva,

Tsymbalov,

Gorlova

et al. 2024

Laser Phys. Lett.

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Analytical dependence of the energy spread of electron beam on time and injection duration has been obtained with the 1D model of the quasi-linear laser wakefield electron acceleration, presented as phase portraits of electron energy relative to the plasma wave phase. The method for producing electron beams with variable energy and a lower energy spread compared to a standard bubble-like approach by transferring to a deaccelerating part with another phase trajectory (by reducing the plasma amplitude of a wave) has been developed. The analytically obtained results successfully describe key features of the previously obtained in Tsymbalov et al (2024 arXiv:2403.19828) experimental and numerical (PIC) data.

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“…In recent decades, advances have been made in the field of femtosecond laser technology, making it possible to achieve tera-and petawatt laser peak powers with pulse duration down to a few optical periods. In many ways, this was facilitated by research on nonlinear optics, the acceleration of charged particles, controlled thermonuclear fusion, and others [1][2][3][4][5][6]. Focusing of high-power femtosecond laser radiation makes it possible to obtain peak intensity from 10 18 to 10 23 W/cm 2 and provides for the field ionization of target atoms already at the front of the laser pulse [7,8].…”

Section: Introductionmentioning

confidence: 99%

Real time reconstruction of the fast electron spectrum from high intensity laser plasma interaction using gamma counting technique

Zavorotnyi

Savel’ev

2023

J. Inst.

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X-ray and gamma fluxes from the high intensity laser-plasma interaction are extremely short, well beyond temporal resolution of any detectors. If laser pulses come repetitively, the single photon counting technique allows to accumulate the photon spectra, however, its relation to the spectrum of the initial fast electron population in plasma is not straightforward. We present efficient and fast approach based on the Geant4 package that significantly reduces computer time needed to re-construct the high energy tail of electron spectrum from experimental data accounting for the pileup effect. Here, we first tabulate gamma spectrum from monoenergetic electron bunches of different energy for a given experimental setup, and then compose the simulated spectrum. To account for the pileups, we derive analytical formula to reverse the data. We also consider errors coming from the approximation of the initial electron spectrum by the sum of monoenergetic impacts, the finite range of the electron spectrum, etc. and give estimates on how to choose modelling parameters to minimize the approximation errors. Finally, we present an example of the experimental data treatment for the case of laser-solid interaction using 50 fs laser pulse with intensity above 1018 W/cm2.

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Nuclear photonics: results and prospects

Cited by 16 publications

References 231 publications

eXawatt Center for Extreme Light Studies

eXawatt Center for Extreme Light Studies

Quasi-monoenergetic electron beam from LWFA: analytical approach

Real time reconstruction of the fast electron spectrum from high intensity laser plasma interaction using gamma counting technique

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