A bright neutron source driven by relativistic transparency of solids

Roth, Markus; Jung, Daniel; Falk, K.; Guler, N.; Deppert, O.; Devlin, M.; Favalli, Andrea; Fernández, Juan; Gautier, D. C.; Geißel, Matthias; Haight, R. C.; Hamilton, C. E.; Hegelich, B. M.; Johnson, R. P.; Kleinschmidt, A.; Merrill, F. E.; Schaumann, G.; Schoenberg, Kurt F.; Schollmeier, M.; Shimada, T.; Taddeucci, T.N.; Tybo, J. L.; Wagner, F.; Wender, S. A.; Wilde, C. H.; Wurden, G. A.

doi:10.1088/1742-6596/688/1/012094

Cited by 6 publications

(13 citation statements)

References 15 publications

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“…If it is tuned to higher energies, it produces the broadband soft X-ray betatron beam described in a separate section. Production of energetic neutron sources from interactions of ultra intense short pulse lasers with thin targets based on relativistic transparency has been demonstrated as viable diagnostic technique [57,58]. Thanks to an expected high contrast, short pulse duration and high energy of the L4 beamline we expect to be able to drive energetic neutron beams at high yield.…”

Section: Warm Dense Mattermentioning

confidence: 99%

P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines

Weber

Bechet

Borneis

et al. 2017

Matter and Radiation at Extremes

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141

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ELI-Beamlines (ELI-BL), one of the three pillars of the Extreme Light Infrastructure endeavour, will be in a unique position to perform research in high-energy-density-physics (HEDP), plasma physics and ultra-high intensity (UHI) (1022W/cm2) laser–plasma interaction. Recently the need for HED laboratory physics was identified and the P3 (plasma physics platform) installation under construction in ELI-BL will be an answer. The ELI-BL 10 PW laser makes possible fundamental research topics from high-field physics to new extreme states of matter such as radiation-dominated ones, high-pressure quantum ones, warm dense matter (WDM) and ultra-relativistic plasmas. HEDP is of fundamental importance for research in the field of laboratory astrophysics and inertial confinement fusion (ICF). Reaching such extreme states of matter now and in the future will depend on the use of plasma optics for amplifying and focusing laser pulses. This article will present the relevant technological infrastructure being built in ELI-BL for HEDP and UHI, and gives a brief overview of some research under way in the field of UHI, laboratory astrophysics, ICF, WDM, and plasma optics.

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Section: Warm Dense Mattermentioning

confidence: 99%

P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines

Weber

Bechet

Borneis

et al. 2017

Matter and Radiation at Extremes

Self Cite

141

View full text Add to dashboard Cite

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“…The potential applications of ultra-intense lasers are manifold, ranging from energy deposition into a compressed fuel pellet during fusion ignition [1] to laser wakefield acceleration [2] to ion acceleration and its applications of neutron radiography, [3] nuclear physics, [4] and proton cancer therapy. [5] Furthermore, an understanding of energetic electrons produced during these laser interactions leads to efficient x-ray generation [6,7] and positron production, [8].…”

Section: High Energy Density Physicsmentioning

confidence: 99%

“…As another example, a beam of neutrons can be produced with lasers. [3] Proton or deuteron beams generated from the initial laser-target interaction can be directed into a converter target, such as lithium or beryllium, in which a nuclear reaction producing neutrons can occur. The optimization of such a neutron beam depends on control of the yield and energy spectrum of the laser-generated ion beam as well as the details of the converter target.…”

Section: Energetic Beam Productionmentioning

confidence: 99%

“…Here u j describes the fluid velocity, and m j and n j refer to the mass and number density of electron or ion species j. These equations have a solution in a self-similar form 3 :…”

Section: Dynamic Modelmentioning

confidence: 99%

“…For Scarlet units of fluence F ≈ 10 8 J/cm 2 and the ρ = 1 g/cm 3 Qiao et al [32] derived an expression for the dominant regime of RPA over TNSA by constraining the target thickness to be sufficiently thin such that the hole boring effect can propagate to the rear target surface before the pulse is over, or l 0 < v hb τ . Additionally, ions accelerated from the front of the target need to be faster than those accelerated later at the rear, such that the two groups merge to be accelerated together by the puncturing laser.…”

Section: 42)mentioning

confidence: 99%

See 2 more Smart Citations

Liquid Crystals as High Repetition Rate Targets for Ultra Intense Laser Systems

Poole

2015

Frontiers in Optics 2015

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This thesis presents the development of and first experiments on freely suspended liquid crystal film targets for intense laser-matter experimentation. Liquid crystals exhibit additional phases between solid and liquid which are characterized by different levels of molecular ordering. One of these, the smectic phase, entails molecular orientational order and positional order such that the constituent molecules arrange into layers of set thickness. The surface tension inherent to this smectic phase allows a liquid crystal film to be formed within an aperture in a rigid frame; control over the parameters of film formation (temperature, volume, wiper speed, etc.) allows the number of layers comprising this freely suspended film to be modified on-demand. The result is a variable thickness target with planar geometry that is robust to target chamber vacuum environments and is also inexpensive due to the low volume used per film.

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A tabletop, ultrashort pulse photoneutron source driven by electrons from laser wakefield acceleration

Jiao

Shaw

Wang

et al. 2017

Matter and Radiation at Extremes

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Relativistic electron beams driven by laser wakefield acceleration were utilized to produce ultrashort neutron sources. The experiment was carried out on the 38 fs, ∼0.5 J, 800 nm Ti:Sapphire laser in the 10 TW UT3 laser lab at University of Texas at Austin. The target gas was a high density pulsed gas jet composed of 90% He and 10% N2. The laser pulse with a peak intensity of 1.5 × 1018 W/cm2 interacted with the target to create a cylindrical plasma channel of 60 μm radius (FWHM) and 1.5 mm length (FWHM). Electron beams of ∼80 pC with the Gaussian energy distribution centered at 37 MeV and a width of 30 MeV (FWHM) were produced via laser wakefield acceleration. Neutron fluences of ∼2.4 × 106 per shot with hundreds of ps temporal length were generated through bremsstrahlung and subsequent photoneutron reactions in a 26.6 mm thick tungsten converter. Results were compared with those of simulations using EPOCH and GEANT4, showing agreement in electron spectrum, neutron fluence, neutron angular distribution and conversion rate.

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A bright neutron source driven by relativistic transparency of solids

Cited by 6 publications

References 15 publications

P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines

P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines

Liquid Crystals as High Repetition Rate Targets for Ultra Intense Laser Systems

A tabletop, ultrashort pulse photoneutron source driven by electrons from laser wakefield acceleration

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