High-Intensity Neutron Generation via Laser-Driven Photonuclear Reaction

Arikawa, Yasunobu; Utsugi, Masaru; Alessio, Morace; Nagai, Takahiro; Abe, Yuki; Kojima, Sadaoki; Sakata, Shohei; Inoue, Hiroaki; Fujioka, Shinsuke; Zhang, Zhe; Chen, Hui; Park, Jaebum; Williams, Jeremiah; Morita, T.; Sakawa, Y.; Nakata, Yoshiki; Kawanaka, Junji; Jitsuno, Takahisa; Sarukura, Nobuhiko; Miyanaga, Noriaki; Nakai, M.; Shiraga, H.; Nishimura, Hiroaki; Azechi, H.

doi:10.1585/pfr.10.2404003

Cited by 25 publications

(19 citation statements)

References 15 publications

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“…Our results may have application as an intense ultrashort electron source in the multi-MeV range, with characteristics not easily attainable with other techniques. Electrons with these parameters are potentially of interest for photoneutron generation [26][27][28] (aiming at extremely high fluxes) or ultra-fast electron diffraction [29][30][31] (for imaging of ultrafast processes with electron diffraction). Besides these possible applications our results confirm the possibility to extend the study and applications of plasmonics into the high field, relativistic regime.…”

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confidence: 99%

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

et al. 2016

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The generation of energetic electron bunches by the interaction of a short, ultraintense (I>10(19) W/cm(2)) laser pulse with "grating" targets has been investigated in a regime of ultrahigh pulse-to-prepulse contrast (10(12)). For incidence angles close to the resonant condition for surface plasmon excitation, a strong electron emission was observed within a narrow cone along the target surface, with energy spectra peaking at 5-8 MeV and total charge of ∼100 pC. Both the energy and the number of emitted electrons were strongly enhanced with respect to simple flat targets. The experimental data are closely reproduced by three-dimensional particle-in-cell simulations, which provide evidence for the generation of relativistic surface plasmons and for their role in driving the acceleration process. Besides the possible applications of the scheme as a compact, ultrashort source of MeV electrons, these results are a step forward in the development of high-field plasmonics.

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confidence: 99%

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

et al. 2016

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“…Repetitive neutron generation is essential for some applications that require not only high peak intensity but also high average flux of the neutron beam. Several authors reported laser-driven neutron generations [5] based on nuclear fusion reactions by laser-driven implosion [6,7], nuclear interactions of light atoms with protons and/or deuterons accelerated by high-intensity laser pulse [8,9], and photonuclear reactions of matters with high energy photons generated by laser-matter interactions [10,11]. National Ignition Facility (NIF), which is the world largest laser facility delivering up to 1.8 MJ of laser energy, achieved more than 10 16 neutron yield per pulse by deuterium and tritium nuclear fusion reactions [6].…”

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confidence: 99%

Efficient and Repetitive Neutron Generation by Double-Laser-Pulse Driven Photonuclear Reaction

Arikawa

Kato

Abe

et al. 2018

Plasma and Fusion Research

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A short and high-intensity neutron pulse can be produced efficiently by using photonuclear reactions caused by Bremsstrahlung hard X-rays in a lase-irradiated high-Z target. The efficient and repetitive neutron generation was demonstrated with the combination of 1 Hz, 0.5 J, 25 fs, 5 × 10 19 W/cm 2 laser pulses and a rotating tungsten disc targe. Here we applied double laser pulse irradiation scheme to increase the neutron generation efficiency. The first low-intensity laser pulse produces a lon-scale unde-critical-density plasma on the tungsten target surface prior to the second pulse irradiatio. High energy electrons above the ponderomotive scaling value are accelerated by the second hig-intensity pulse in the preformed plasm, this results in the increment of hard X-ray photons and photonuclear neutron. 3.5 × 10 4 neutron/pulse was obtained with optimized laser irradiation conditions.

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“…In addition to the above candidates, there are other neutron sources utilizing a laser [9] or inertial electrostatic confinement [10]. However they does not give appropriate pulsed neutrons for NRTA measurement at present.…”

Section: Concept Of a Compact Nrta Systemmentioning

confidence: 99%

Development of Neutron Resonance Transmission Analysis as a Non-Destructive Assay Technique for Nuclear Nonproliferation<sup> </sup>

Tsuchiya

Kitatani

Maeda

et al. 2018

Plasma and Fusion Research

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Currently, there is much demand for a non-destructive assay technique to quantify special nuclear materials of 235 U and Pu isotopes in a field of nuclear nonproliferation. For this purpose, a compact NRTA system is under development. The performance of a proposed compact NRTA system was investigated by calculating a neutron transmission spectrum for a spent nuclear fuel. In this paper, we mainly evaluated how a transmission spectrum was affected by neutron pulse width and flight path length of the system and discuss the appropriate values from a viewpoint of measurement of special nuclear materials.

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High-Intensity Neutron Generation via Laser-Driven Photonuclear Reaction

Cited by 25 publications

References 15 publications

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

Efficient and Repetitive Neutron Generation by Double-Laser-Pulse Driven Photonuclear Reaction

Development of Neutron Resonance Transmission Analysis as a Non-Destructive Assay Technique for Nuclear Nonproliferation<sup> </sup>

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