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REVIEW 3 major objections 5 minor 44 references

Enhanced plasma heating via interaction with high-contrast laser and cone-shaped target

T0 review · 3 major / 5 minor · reviewed 2026-08-07 · deepseek-v4-flash

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Pith's one-line read A high-contrast laser aimed into a cone-shaped target heats the plasma to roughly 9 keV, about 17.5 times hotter than low-contrast flat-target irradiation.

desk verdict A useful follow-on experiment whose qualitative cone-focusing picture is credible, but the flagship 9 keV and 17.5x numbers rest on thin, scaling-law and single-shot inference and should not be taken at face value. read the letter →

arxiv 2506.06963 v1 pith:PDRVYC6X submitted 2025-06-08 physics.plasm-ph

Yuga Karaki , Yoshitaka Mori , Eigo Ebisawa , Yuichi Inubushi , Sadaoki Kojima , Kohei Yamanoi , Yuki Abe , Takumi Tsuido
show 20 more authors
Hiroki Matsubara Rinya Akematsu Ryo Omura Ryunosuke Takizawa King Fai Farley Law Eisuke Miura Yasunobu Arikawa Keisuke Shigemori Akifumi Iwamoto Katsuhiro Ishii Ryohei Hanayama Yoneyoshi Kitagawa Hiroshi Sawada Takayoshi Sano Natsumi Iwata Yasuhiko Sentoku Atsushi Sunahara Tomoyuki Johzaki Kenichi Nagaoka Shinsuke Fujioka
This is my paper
classification physics.plasm-ph
keywords high-contrastlaserplasmamirrorcone-shapedtargetfastelectrongenerationX-rayspectroscopyPrismSPECTtemperaturelaser-plasmaheating
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

This paper reports a laser-plasma experiment whose goal is efficient heating of a solid target to multi-keV temperatures for applications such as fast-ignition fusion. By adding a plasma mirror to clean the leading edge of the LFEX pulse and attaching a gold cone to the target, the authors find the emitted titanium X-ray spectrum shifts to much higher temperature. Their spectral fits give about 9 keV for the cone/high-contrast case, roughly 17.5 times the electron temperature inferred for a flat target hit by a low-contrast pulse. The claim matters because it identifies a practical combination—clean pulse plus cone geometry—that improves laser-to-plasma coupling without using more laser energy.

What carries the argument

The load-bearing setup is a thin deuterated-polystyrene target with a titanium-oxide tracer and a 300-micron-long gold cone with a 100-micron tip aperture. The argument is carried by three linked measurements: x-ray pinhole images showing the cone funnels peripheral laser spots into the tip; electron spectrometer slope temperatures, converted to laser intensity by the Wilks ponderomotive scaling; and titanium He-beta, Ly-beta, and He-gamma spectra matched with PrismSPECT collisional-radiative simulations in which the electron distribution has a bulk thermal component and a fast component set by the measured slope temperature.

What would settle it

Reproduce the cone/high-contrast shot with a multi-tracer layered target or a time-resolved titanium X-ray spectrometer: if radiation-transport analysis with realistic temperature and density gradients, or measured line ratios at early and late times, puts the bulk electron temperature well below 9 keV, the uniform steady-state inference would be invalidated.

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Extended reading notes

Core claim

On the paper's own terms, the central discovery is that the high-contrast, plasma-mirror-cleaned LFEX pulse and the cone-shaped gold target act synergistically: the cone collects the intentionally multi-spot laser pattern and refocuses it near the 100-micron tip, the measured fast-electron slope temperature rises from 125 keV (flat, high contrast) to 412 keV (cone, high contrast), and the titanium tracer spectra, matched with PrismSPECT simulations using a two-component electron distribution, yield an electron temperature of about 9 keV—17.5 times higher than the 560 eV inferred for the low-contrast flat-target shot. The paper interprets this as significantly enhanced laser energy coupling and plasma heating efficiency.

Load-bearing premise

The 9 keV temperature rests on treating the emitting plasma as a uniform, steady-state, 1-micron-thick solid layer whose X-ray spectrum can be reproduced by a two-component electron model; real spatial gradients and transient ionization could change the number substantially.

Editorial extensions

If this is right

  • Combining a high-contrast pulse with a cone should heat a titanium-doped target to multi-keV bulk temperatures at the same laser energy.
  • The cone is inferred to raise the local laser intensity roughly fourfold, from about 0.7e18 W/cm2 to 2.8e18 W/cm2.
  • Fast-electron spectra shift to higher energy with the cone, consistent with stronger ponderomotive acceleration at the tip.
  • These conditions are directly relevant to fast-ignition-style heating, where compressed fuel must be heated by fast electrons.
  • The method offers a route to laboratory high-energy-density states with modest drive energy.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • Because the spectral fit assumes a uniform 1-micron layer, the 9 keV should be read as a spatially averaged effective temperature; a multi-tracer depth measurement would show whether the true peak is higher or lower.
  • The unexplained spectral feature near 5.95 keV and the missing Ti19+ lines hint that transient non-equilibrium ionization may be present, so time-resolved spectra would test whether steady-state line ratios are misleading.
  • The same cone-focusing idea extends naturally to compound parabolic concentrators, which the paper names as a future direction, making the inferred fourfold intensity gain a plausible lower bound for optimized non-imaging concentrators.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 5 minor

Summary. The paper reports a three-shot LFEX experiment (low-contrast flat, high-contrast flat, high-contrast cone) in which fast-electron spectra, Ti K-shell X-ray spectra, and X-ray pinhole images were used to argue that combining a high-contrast laser with a cone target enhances laser intensity at the cone tip and raises the bulk electron temperature. The measured fast-electron slope temperatures are 972, 125, and 412 keV for the three cases; applying the Pukhov scaling to the low-contrast case and the Wilks scaling to the high-contrast cases yields inferred laser intensities of 0.4, 0.7, and 2.8 in units of 10^18 W/cm^2, which the paper interprets as a fourfold intensity enhancement from the cone. Ti spectra fitted with PrismSPECT under a uniform, steady-state, two-component-electron model give bulk temperatures of 560 eV, 990 eV, and 9.9 keV, leading to the headline claim of a 17.5x temperature increase over the low-contrast flat case. The paper concludes that the cone plus high-contrast irradiation significantly improves plasma heating efficiency.

Significance. If the claims are correct, the result would be of interest for fast-electron heating and cone-guided fast ignition: a bulk temperature of ~9 keV in a solid-density plasma is substantially higher than typical results for flat-target irradiation, and a 'focusing' effect of the cone inferred from fast-electron spectra would be a useful design consideration. The paper has the strength of combining two independent diagnostics (electron spectrometer and Bragg-crystal X-ray spectrometer) and of using a careful target design with a Ti tracer separated from the laser-interaction surface. The X-ray pinhole image in Fig. 2(c) provides a direct visual indication that part of the multi-spot laser pattern is redirected toward the cone tip. However, the quantitative support for the headline numbers is thin: there is one shot per configuration, the inferred fourfold intensity increase is a monotonic reparameterization of the measured slope temperature through a scaling law, and the 9 keV temperature rests on a steady-state uniform PrismSPECT fit with two free parameters and two unreproduced spectral features.

major comments (3)
  1. [Section 4, Figs. 4(d)-(f)] The 9 keV temperature is not shown to be robustly constrained. The spectral comparison uses only the Pearson correlation coefficient over the 5.3-6.0 keV window, with the bulk Te and fast-electron mixing ratio as free parameters, but the manuscript itself states that a ~5.5 keV Ti19+ doubly-excited satellite and a ~5.95 keV unidentified line are not reproduced by the simulations. Because those features are effectively excluded from the objective function, the fit can be dominated by the continuum slope or by the included He-beta/Ly-beta lines while leaving the ionization balance incorrect. The paper also concedes in Section 5 that spatial gradients require SPECT3D and that transient fully ionized plasmas require time-resolved simulations; this is exactly the regime of the claimed 9 keV result. I would like to see (i) a sensitivity scan showing how Te changes when the fitting window is varied or when the unreproduced features are masked, (ii) the reported 95% confidence interval for Te, and (iii) a discussion of whether the two-component model is identifiable with only this spectral window.
  2. [Section 3, Eqs. (1)-(2) and Fig. 3] The 'fourfold intensity enhancement' is not an independent measurement. The inferred intensities (0.7 and 2.8 in units of 10^18 W/cm^2) are obtained by inverting the Wilks relation using the measured Tfast values (125 and 412 keV), so the fourfold claim is essentially a monotonic reparameterization of the measured slope temperature. Moreover, the low-contrast case is analyzed with a different empirical scaling (Th = 1.5 sqrt(I)) than the high-contrast cases (Wilks), so the comparison of 0.4 with 2.8 mixes two models. The pinhole image in Fig. 2(c) does show redistribution of emission toward the cone tip, but it is not calibrated to intensity. The claim should be reframed as 'consistency with a fourfold intensity increase under Wilks scaling' or supported by an independent intensity diagnostic.
  3. [Section 2 (Table 1), Section 4 (Fig. 4)] The experiment comprises one shot per configuration, and no shot-to-shot uncertainty is propagated into the main claims. The error bars on Tfast in Fig. 3 are fit standard errors only, and the text does not report an uncertainty for the 9.9 keV temperature or for the 17.5x ratio. Given that the central quantitative claims are ratios between shots, the lack of repetition or at least of a clear statement that these are single-shot exploratory results is a load-bearing weakness. I would also ask the authors to state whether the low-contrast shot (L5146) intentionally differed from the high-contrast shots in the laser focal pattern, since the text says the multi-spot pattern was applied only to evaluate the cone's focusing effect; this makes the contrast comparison (flat vs cone) confounded by a change in the illumination geometry.
minor comments (5)
  1. [General] There are typographical errors that should be corrected: 'transfering' in Section 1, 'surunding' in Section 1, and 'astoronomical' in Section 1.
  2. [Section 4] The procedure for computing the 95% confidence interval of the Pearson correlation coefficient is not described; please specify whether it is a Fisher-z transform, a bootstrap, or another method.
  3. [Section 4, Fig. 4] The experimental spectra in Fig. 4(d)-(f) are shown without error bars or shot-to-shot variation; adding at least the estimated detector noise would help the reader judge the quality of the fits.
  4. [Section 3] The projected X-ray pinhole images in Fig. 2 are discussed qualitatively; a quantitative measure (e.g., integrated PSL within the 100-micron circle vs outside, or centroid shift) would strengthen the focusing claim.
  5. [Introduction, Ref. [17]] Reference [17] (Takizawa et al., Phys. Rev. Res. 7, 023081) appears to be a closely related previous study by the same group on ultrahigh-contrast lasers and cone targets; the present paper should explicitly state what is new relative to that work, given the overlapping diagnostics and target geometry.

Circularity Check

1 steps flagged · score 4.0 of 10

The cone-induced 'fourfold laser intensity increase' is a re-parameterization of the measured Tfast via the Wilks scaling, while the core 9 keV X-ray temperature is a model fit whose uniformity/transience limitations are acknowledged in the paper.

  1. fitted input called prediction [Section 3, 'Enhancement of Focused Intensity by High-Contrast Laser and Cone', paragraph following Fig. 3.]
    "These values were further analyzed using the ponderomotive scaling law proposed by Wilks et al. [36]: Th [MeV] = 0.511( sqrt(1 + Iλ^2/1.37) - 1 ) ... Based on this scaling, the estimated laser intensity was I=0.7×10^18 W/cm^2 for the high-contrast case without a cone, and I=2.8×10^18 W/cm^2 for the case with a cone. This indicates that the presence of the cone resulted in approximately a fourfold enhancement of laser intensity at the focal region."

    The 'fourfold enhancement of laser intensity' is not an independent observable: I is obtained by inverting the Wilks formula, a monotone bijection applied to the same Tfast values (125 and 412 keV) already measured and reported. Thus the intensity ratio is a re-parameterization of the Tfast ratio; the statement that the cone gives a fourfold intensity rise is a mathematical consequence of the input temperatures and the scaling law, not a separate verification of focusing. The same holds for the low-contrast case, where Th = 1.5 sqrt(I) converts the measured 972 keV slope back into 0.4×10^18 W/cm^2. The X-ray pinhole images provide independent spatial evidence of focusing, but the quantitative intensity-enhancement claim is forced by construction from Tfast.

full rationale

The central quantitative claim, a ~9 keV bulk electron temperature for the cone case versus 560 eV for the low-contrast flat case, is inferred in Section 4 by fitting a PrismSPECT two-component model to measured Ti K-shell spectra, with the bulk Te and fast-electron mixing ratio as free parameters optimized against the Pearson correlation over the 5.3-6.0 keV window. That is a standard spectral-inference procedure from an independent observable, not a re-statement of the inputs; it does not reduce to the measured fast-electron slope, although the latter seeds the fast-electron component. The paper's own Section 5 admission that spatial gradients require SPECT3D and that transient fully ionized plasmas need time-resolved measurements is a correctness/uncertainty concern about the uniform steady-state assumption, not a circularity. The only identifiable reduction is the Section 3 intensity claim, which converts the already-measured Tfast values into laser intensities via the Wilks/Pukhov scalings and then presents the resulting 'fourfold enhancement' as an inferential result; this claim is not independently supported by the electron data, though the pinhole images do give independent spatial evidence of cone focusing. Self-citations such as [14], [17], and [26] are used for apparatus and mechanism context and are not load-bearing for the main spectral temperature derivation. Overall, the paper is not globally circular, but one secondary headline claim reduces by construction; accordingly the score is 4 rather than 0-2.

Assumptions & free parameters 7 free parameters · 6 assumptions · 0 invented entities

The central claims rest on a chain of fitted quantities and modeling assumptions: slope temperatures from single-exponential fits, bulk temperatures and fast-electron mixing ratios from correlation fits to PrismSPECT, and an intensity conversion via two different scaling laws. The spectral model assumes uniformity and steady state; the atomic data are incomplete in the fitted window. No new entities are introduced, and no code or raw data are released.

free parameters (7)
  • Fast-electron slope temperature Tfast (low-contrast flat, shot L5146) = 972 ± 6 keV
    Fitted from a Maxwell-Boltzmann exponential to the electron spectrometer signal in Fig. 3; used with the empirical scaling to estimate laser intensity and as the fast-electron component input to PrismSPECT.
  • Fast-electron slope temperature Tfast (high-contrast flat, shot L5145) = 125 ± 11 keV
    Fitted from the high-contrast flat-target electron spectrum; used with Wilks scaling and in the spectral model.
  • Fast-electron slope temperature Tfast (high-contrast cone, shot L5147) = 412 ± 7 keV
    Fitted from the cone-target electron spectrum; converted to the claimed fourfold intensity increase and used in the spectral model.
  • Bulk electron temperature Te (low-contrast flat) = 560 eV
    Chosen to maximize the Pearson correlation coefficient between PrismSPECT and the measured Ti X-ray spectrum over 5.3-6.0 keV.
  • Bulk electron temperature Te (high-contrast flat) = 990 eV
    Same correlation-fit procedure.
  • Bulk electron temperature Te (high-contrast cone) = 9910 eV
    Same correlation-fit procedure; this is the 9 keV value behind the 17.5x claim.
  • Fast-electron mixing ratio in PrismSPECT = not reported
    Free parameter in the two-component electron distribution, adjusted together with Te to maximize correlation; no best-fit value or uncertainty is given in the paper.
assumptions (6)
  • domain assumption The PrismSPECT model with a steady-state, spatially uniform plasma at 1 um solid density represents the Ti-emitting region.
    Section 4 sets the plasma thickness to 1 um at solid density and steady-state conditions; Section 5 concedes spatial gradients and transient ionization require SPECT3D and time-resolved measurements.
  • domain assumption The fast-electron energy distribution measured outside the target at 10.8 degrees from the laser axis is representative of the fast electrons inside the target that drive the X-ray emission.
    Section 2.6 and Section 4: the electron spectrometer slope temperature is used directly as the fast-electron component input to PrismSPECT.
  • domain assumption The Wilks ponderomotive scaling (high contrast) and the Pukhov empirical scaling (low contrast) are valid for converting measured slope temperatures to laser intensity in this multi-spot, cone-focused geometry.
    Section 3 applies these formulas without testing their validity for the intentional multi-spot pattern or for light reflected by the cone.
  • domain assumption The FAC atomic data and line identification are complete enough that unmodeled emission features do not bias the correlation fit.
    Section 4 reports that Ti19+ transitions near 5.5 keV are not reproduced in simulations and an unidentified feature near 5.95 keV is absent from the NIST database.
  • domain assumption Ti X-ray emission in the 5.3-6.0 keV window has minimal self-absorption, so a single uniform plasma column is sufficient.
    Section 4 states the correlation was evaluated over 5.3-6.0 keV where the effect of self-absorption is minimal.
  • domain assumption A single exponential Maxwell-Boltzmann fit captures the fast-electron distribution, with no multi-temperature or non-thermal components needed.
    Section 3 fits f(E)=A exp(-E/Tfast) to all spectra; the plotted spectra show features and background that suggest the single exponential may be incomplete.

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Cite this review

Pith. "Pith review of Enhanced plasma heating via interaction with high-contrast laser and cone-shaped target." pith.science (2026). https://pith.science/paper/PDRVYC6X

@misc{pith2026250606963,
  author       = {Pith},
  title        = {Pith review of: Enhanced plasma heating via interaction with high-contrast laser and cone-shaped target},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/PDRVYC6X}},
  note         = {Machine review of arXiv:2506.06963}
}
read the original abstract

We investigated plasma heating enhancement using a high-intensity, high-contrast laser and a cone-attached target. Fast electron spectra and X-ray emission were measured with an electron spectrometer and a Bragg crystal spectrometer. The results were analyzed using PrismSPECT simulations with a two-component electron distribution model and empirical scaling laws. X-ray pinhole images showed that the cone effectively focused multi-spot laser light near its tip, enhancing local emission. While high-contrast laser irradiation reduced the fast electron slope temperature for flat targets, the use of a cone increased it by over threefold, corresponding to a fourfold rise in laser intensity. X-ray spectral analysis indicated an electron temperature of ~9~keV for the cone case, 17.5 times higher than that with a low-contrast laser. These findings demonstrate that combining high-contrast laser irradiation with cone-target geometry significantly improves laser energy coupling and plasma heating efficiency.

Figures

Figures reproduced from arXiv: 2506.06963 by the authors.

Figure 1
Figure 1. (a) Schematic of the planar target composed of deuterated polystyrene ( [PITH_FULL_IMAGE:figures/full_fig_p006_1.png] view at source ↗
Figure 2
Figure 2. X-ray images of the laser focal spot observed using the X-ray pinhole camera. [PITH_FULL_IMAGE:figures/full_fig_p007_2.png] view at source ↗
Figure 3
Figure 3. Energy distributions of fast electrons measured by the electron spectrometer. [PITH_FULL_IMAGE:figures/full_fig_p008_3.png] view at source ↗
Figures from the paper (1 more)
Figure 4
Figure 4. Figure 4: Top panels (a) - (c): Simulated titanium spectra calculated using Prism [PITH_FULL_IMAGE:figures/full_fig_p010_4.png]

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Works this paper leans on

44 extracted references · 44 canonical work pages

  1. [17]

    Takizawa, A

    R. Takizawa, A. Morace, Y. Abe, Y. Arikawa, B. Zhu, H. Morita, Z. Lan, J. Dun, T. Tsuido, Y. Karaki, H. Matsubara, K. F. F. Law, C. Liu, K. Matsuo, A. Yogo, A. Iwamoto, H. Nagatomo, T. Johzaki, M. Nakai, H. Shiraga, R. Kodama, Y. Sentoku, S. Fujioka, Boosting fast ignition heating through interaction between ultrahigh-contrast heating lasers and a cone-sh...

    work page doi:10.1103/physrevresearch.7.023081 2025

  2. [1]

    G. A. Mourou, C. P. Barry, M. D. Perry, Ultrahigh-intensity lasers: Physics of the extreme on a tabletop, Physics today 51 (1) (1998) 22– 28. 12

    work page 1998

  3. [2]

    B. A. Remington, R. P. Drake, H. Takabe, D. Arnett, A review of astro- physics experiments on intense lasers, Physics of Plasmas 7 (5) (2000) 1641–1652

    work page 2000

  4. [3]

    K. F. Law, Y. Abe, A. Morace, Y. Arikawa, S. Sakata, S. Lee, K. Matsuo, H. Morita, Y. Ochiai, C. Liu, A. Yogo, K. Okamoto, D. Golovin, M. Ehret, T. Ozaki, M. Nakai, Y. Sentoku, J. J. San- tos, E. D’Humières, P. Korneev, S. Fujioka, Relativistic magnetic reconnection in laser laboratory for testing an emission mechanism of hard-state black hole system, Phy...

    work page doi:10.1103/physreve.102.033202 2020

  5. [4]

    Sakawa, H

    Y. Sakawa, H. Ishihara, S. Ryazantsev, M. Alkhimova, R. Kumar, O. Kuramoto, Y. Matsumoto, M. Ota, S. Egashira, Y. Nakagawa, T. Mi- nami, K. Sakai, T. Taguchi, H. Habara, Y. Kuramitsu, A. Morace, Y. Abe, Y. Arikawa, S. Fujioka, M. Kanasaki, T. Asai, T. Morita, Y. Fukuda, S. Pikuz, T. Pikuz, Y. Ohira, L. Döhl, N. Woolsey, T. Sano, Laser-Driven Proton-Only A...

    work page doi:10.1103/physrevlett.133.195102 2024

  6. [5]

    Da Silva, P

    L. Da Silva, P. Celliers, G. Collins, K. Budil, N. Holmes, T. Barbee Jr, B. Hammel, J. Kilkenny, R. Wallace, M. Ross, et al., Absolute equation of state measurements on shocked liquid deuterium up to 200 gpa (2 mbar), Physical review letters 78 (3) (1997) 483

    work page 1997

  7. [6]

    Fujioka, H

    S. Fujioka, H. Nishimura, K. Nishihara, A. Sasaki, A. Sunahara, T. Okuno, N. Ueda, T. Ando, Y. Tao, Y. Shimada, et al., Opacity effect on extreme ultraviolet radiation from laser-produced tin plasmas, Physical review letters 95 (23) (2005) 235004

    work page 2005

  8. [7]

    Lefebvre, G

    E. Lefebvre, G. Bonnaud, Transparency/opacity of a solid target illu- minated by an ultrahigh-intensity laser pulse, Physical review letters 74 (11) (1995) 2002

    work page 1995

Show all 44 references
  1. [8]

    Fujioka, H

    S. Fujioka, H. Takabe, N. Yamamoto, D. Salzmann, F. Wang, H. Nishimura, Y. Li, Q. Dong, S. Wang, Y. Zhang, Y.-J. Rhee, Y.- W. Lee, J.-M. Han, M. Tanabe, T. Fujiwara, Y. Nakabayashi, G. Zhao, J. Zhang, K. Mima, X-ray astronomy in the laboratory with a miniature 13 compact objec...

    2009 doi

  2. [9]

    Lindl, Development of the indirect-drive approach to inertial confine- ment fusion and the target physics basis for ignition and gain, Physics of plasmas 2 (11) (1995) 3933–4024

    J. Lindl, Development of the indirect-drive approach to inertial confine- ment fusion and the target physics basis for ignition and gain, Physics of plasmas 2 (11) (1995) 3933–4024

    1995

  3. [10]

    Tabak, J

    M. Tabak, J. Hammer, M. E. Glinsky, W. L. Kruer, S. C. Wilks, J. Woodworth, E. M. Campbell, M. D. Perry, R. J. Mason, Ignition and high gain with ultrapowerful lasers, Physics of Plasmas 1 (5) (1994) 1626–1634

    1994

  4. [11]

    Kodama, P

    R. Kodama, P. Norreys, K. Mima, A. Dangor, R. Evans, H. Fujita, Y. Kitagawa, K. Krushelnick, T. Miyakoshi, N. Miyanaga, et al., Fast heating of ultrahigh-density plasma as a step towards laser fusion igni- tion, Nature 412 (6849) (2001) 798–802

    2001

  5. [12]

    Theobald, A

    W. Theobald, A. Solodov, C. Stoeckl, K. Anderson, R. Betti, T. Boehly, R. Craxton, J. Delettrez, C. Dorrer, J. Frenje, et al., Initial cone-in-shell fast-ignition experiments on omega, Physics of Plasmas 18 (5) (2011)

    2011

  6. [13]

    Theobald, A

    W. Theobald, A. Solodov, C. Stoeckl, K. Anderson, F. Beg, R. Epstein, G. Fiksel, E. Giraldez, V. Y. Glebov, H. Habara, et al., Time-resolved compression of a capsule with a cone to high density for fast-ignition laser fusion, Nature Communications 5 (1) (2014) 5785

    2014

  7. [14]

    S.Fujioka, Y.Arikawa, S.Kojima, T.Johzaki, H.Nagatomo, H.Sawada, S. H. Lee, T. Shiroto, N. Ohnishi, A. Morace, et al., Fast ignition real- ization experiment with high-contrast kilo-joule peta-watt lfex laser and strong external magnetic field, Physics of Plasmas 23 (5) (2016)

    2016

  8. [15]

    Sakata, S

    S. Sakata, S. Lee, H. Morita, T. Johzaki, H. Sawada, Y. Iwasa, K. Matsuo, K. F. F. Law, A. Yao, M. Hata, A. Sunahara, S. Kojima, Y. Abe, H. Kishimoto, A. Syuhada, T. Shiroto, A. Morace, A. Yogo, N. Iwata, M. Nakai, H. Sakagami, T. Ozaki, K. Yamanoi, T. Norimatsu, Y. Nakata, S....

    2018 arXiv

  9. [16]

    Matsuo, N

    K. Matsuo, N. Higashi, N. Iwata, S. Sakata, S. Lee, T. Johzaki, H. Sawada, Y. Iwasa, K. F. F. Law, H. Morita, Y. Ochiai, S. Kojima, Y. Abe, M. Hata, T. Sano, H. Nagatomo, A. Sunahara, A. Morace, A. Yogo, M. Nakai, H. Sakagami, T. Ozaki, K. Yamanoi, T. Norimatsu, Y. Nakata, S. ...

    2020 arXiv

  10. [18]

    Pukhov, Z.-M

    A. Pukhov, Z.-M. Sheng, J. Meyer-ter Vehn, Particle acceleration in relativistic laser channels, Physics of Plasmas 6 (7) (1999) 2847–2854

    1999

  11. [19]

    H.-b. Cai, K. Mima, A. Sunahara, T. Johzaki, H. Nagatomo, S.-p. Zhu, X. He, Prepulse effects on the generation of high energy electrons in fast ignition scheme, Physics of Plasmas 17 (2) (2010)

    2010

  12. [20]

    Rosmej, Z

    O. Rosmej, Z. Samsonova, S. Höfer, D. Kartashov, C. Arda, D. Khaghani, A. Schoenlein, S. Zähter, A. Hoffmann, R. Loetzsch, et al., Generation of kev hot near-solid density plasma states at high contrast laser-matter interaction, Physics of Plasmas 25 (8) (2018)

    2018

  13. [21]

    Paradkar, M

    B. Paradkar, M. Wei, T. Yabuuchi, R. Stephens, J. Larsen, F. Beg, Numerical modeling of fast electron transport in short pulse laser–solid 15 interactions with long scale-length pre-formed plasma, Plasma Physics and Controlled Fusion 52 (12) (2010) 125003

    2010

  14. [22]

    Peebles, M

    J. Peebles, M. Wei, A. Arefiev, C. McGuffey, R. Stephens, W. Theobald, D. Haberberger, L. Jarrott, A. Link, H. Chen, et al., Investigation of laser pulse length and pre-plasma scale length impact on hot electron generation on omega-ep, New Journal of Physics 19 (2) (2017) 023008

    2017

  15. [23]

    A. Yogo, K. Mima, N. Iwata, S. Tosaki, A. Morace, Y. Arikawa, S. Fu- jioka, T. Johzaki, Y. Sentoku, H. Nishimura, et al., Boosting laser-ion acceleration with multi-picosecond pulses, Scientific reports 7 (1) (2017) 42451

    2017

  16. [24]

    Kojima, M

    S. Kojima, M. Hata, N. Iwata, Y. Arikawa, A. Morace, S. Sakata, S. Lee, K. Matsuo, K. F. F. Law, H. Morita, et al., Electromagnetic field growth triggering super-ponderomotive electron acceleration dur- ing multi-picosecond laser-plasma interaction, Communications Physics 2 (1...

    2019

  17. [25]

    Miyanaga, H

    N. Miyanaga, H. Azechi, K. Tanaka, T. Kanabe, T. Jitsuno, J. Kawanaka, Y. Fujimoto, R. Kodama, H. Shiraga, K. Knodo, et al., 10-kj pw laser for the firex-i program, in: Journal de Physique IV (Pro- ceedings), Vol. 133, EDP sciences, 2006, pp. 81–87

    2006

  18. [26]

    Arikawa, S

    Y. Arikawa, S. Kojima, A. Morace, S. Sakata, T. Gawa, Y. Taguchi, Y. Abe, Z. Zhang, X. Vaisseau, S. H. Lee, et al., Ultrahigh-contrast kilojoule-class petawatt lfex laser using a plasma mirror, Applied Optics 55 (25) (2016) 6850–6857

    2016

  19. [27]

    H. C. Kapteyn, M. M. Murnane, A. Szoke, R. W. Falcone, Prepulse energy suppression for high-energy ultrashort pulses using self-induced plasma shuttering, Optics letters 16 (7) (1991) 490–492

    1991

  20. [28]

    Gold, Direct measurement of prepulse suppression by use of a plasma shutter, Optics Letters 19 (23) (1994) 2006–2008

    D. Gold, Direct measurement of prepulse suppression by use of a plasma shutter, Optics Letters 19 (23) (1994) 2006–2008

    1994

  21. [29]

    Dromey, S

    B. Dromey, S. Kar, M. Zepf, P. Foster, The plasma mirror—a subpi- cosecond optical switch for ultrahigh power lasers, Review of Scientific Instruments 75 (3) (2004) 645–649. 16

    2004

  22. [30]

    Doumy, F

    G. Doumy, F. Quéré, O. Gobert, M. Perdrix, P. Martin, P. Audebert, J. Gauthier, J.-P. Geindre, T. Wittmann, Complete characterization of a plasma mirror for the production of high-contrast ultraintense laser pulses, Physical Review E 69 (2) (2004) 026402

    2004

  23. [31]

    K. A. Tanaka, T. Yabuuchi, T. Sato, R. Kodama, Y. Kitagawa, T. Taka- hashi, T. Ikeda, Y. Honda, S. Okuda, Calibration of imaging plate for high energy electron spectrometer, Review of scientific instruments 76 (1) (2005)

    2005

  24. [32]

    H. Chen, A. J. Link, R. Van Maren, P. K. Patel, R. Shepherd, S. C. Wilks, P. Beiersdorfer, High performance compact magnetic spectrom- eters for energetic ion and electron measurement in ultraintense short pulse laser solid interactions, Review of Scientific Instruments 79 (10) (2008)

    2008

  25. [33]

    Meadowcroft, C

    A. Meadowcroft, C. Bentley, E. Stott, Evaluation of the sensitivity and fading characteristics of an image plate system for x-ray diagnostics, Review of scientific instruments 79 (11) (2008)

    2008

  26. [34]

    Ozaki, S

    T. Ozaki, S. Kojima, Y. Arikawa, H. Shiraga, H. Sakagami, S. Fujioka, R. Kato, An electron/ion spectrometer with the ability of low energy electron measurement for fast ignition experiments, Review of Scientific Instruments 85 (11) (2014)

    2014

  27. [35]

    Seidl, G

    P. Seidl, G. Schmidtke, L. Acton, Diffraction properties of hydrogen- phthalate-crystals in the 0.1–2-nm region, Applied Optics 16 (3) (1977) 578–581

    1977

  28. [36]

    Wilks, W

    S. Wilks, W. Kruer, M. Tabak, A. Langdon, Absorption of ultra-intense laser pulses, Physical review letters 69 (9) (1992) 1383

    1992

  29. [37]

    Matsuo, N

    K. Matsuo, N. Higashi, N. Iwata, S. Sakata, S. Lee, T. Johzaki, H. Sawada, Y. Iwasa, K. F. F. Law, H. Morita, et al., Petapascal pres- sure driven by fast isochoric heating with a multipicosecond intense laser pulse, Physical review letters 124 (3) (2020) 035001

    2020

  30. [38]

    MacFarlane, I

    J. MacFarlane, I. Golovkin, P. Woodruff, D. Welch, B. Oliver, T. Mehlhorn, R. Campbell, Simulation of the ionization dynamics of aluminum irradiated by intense short-pulse lasers, in: Proc. Inertial Fu- sion and Sciences Applications, Vol. 457, 2003. 17

    2003

  31. [39]

    M. F. Gu, The flexible atomic code, Canadian Journal of Physics 86 (5) (2008) 675–689

    2008

  32. [40]

    Ralchenko, Nist atomic spectra database., Memorie della Società Astronomica Italiana Supplement, v

    Y. Ralchenko, Nist atomic spectra database., Memorie della Società Astronomica Italiana Supplement, v. 8, p. 96 (2005) 8 (2005) 96

    2005

  33. [41]

    MacFarlane, I

    J. MacFarlane, I. Golovkin, P. Wang, P. Woodruff, N. Pereyra, Spect3d– a multi-dimensional collisional-radiative code for generating diagnostic signatures based on hydrodynamics and pic simulation output, High energy density physics 3 (1-2) (2007) 181–190

    2007

  34. [42]

    A. J. Kemp, Y. Sentoku, V. Sotnikov, S. Wilks, Collisional relaxation of superthermal electrons generated by relativistic laser pulses<? for- mat?> in dense plasma, Physical review letters 97 (23) (2006) 235001

    2006

  35. [43]

    A. G. MacPhee, D. Alessi, H. Chen, G. Cochran, M. R. Hermann, D. H. Kalantar, A. J. Kemp, S. M. Kerr, A. J. Link, T. Ma, et al., Enhanced laser–plasma interactions using non-imaging optical concentrator tar- gets, Optica 7 (2) (2020) 129–130

    2020

  36. [44]

    J.Williams, A.Link, M.Sherlock, D.A

    G. J.Williams, A.Link, M.Sherlock, D.A. Alessi, M.Bowers, B.Golick, M. Hamamoto, M. R. Hermann, D. Kalantar, K. N. LaFortune, et al., Order-of-magnitude increase in laser-target coupling at near-relativistic intensities using compound parabolic concentrators, Physical Review E...

    2021

Pith tools

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