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REVIEW 3 major objections 3 minor 63 references

All-optical compact setup for generation of collimated multi-MeV proton beams with a "snail" target

T0 review · 3 major / 3 minor · reviewed 2026-08-12 · deepseek-v4-flash

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Pith's one-line read A snail coil collimates laser protons 10-fold.

desk verdict A clean test-particle design study showing ~100 MeV proton collimation in a prescribed 1e5 T snail field, but the load-bearing field value is an unmeasured two-order-of-magnitude extrapolation from the only experiment. read the letter →

arxiv 2411.17302 v2 pith:7YG52EJA submitted 2024-11-26 physics.plasm-ph physics.acc-phphysics.app-ph

N. Bukharskii , Ph. Korneev This is my paper · ORCID
classification physics.plasm-phphysics.acc-phphysics.app-ph
keywords laserplasmalaser-drivenmagneticfieldslaser-plasmaaccelerationcollimationsnailtargetprotonbeamTNSAtest-particlesimulation
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

The paper proposes an all-optical compact setup: the same kind of petawatt laser pulse that accelerates protons by TNSA also drives a miniature "snail" target, creating a ~$10^5$ T quasi-static magnetic field that acts as a magnetic lens for the proton beam. Numerical test-particle simulations show that this field can collimate ~100 MeV protons, cutting the beam divergence from 10° to about 0.5° (FWHM) at the detector plane. The uniform field profile collimates 120 MeV protons with an eight-fold central flux increase, while the coaxial profile collimates 110 MeV protons with a 5.5-fold increase. The authors conclude that the collimation is robust to the fine structure of the field, to finite source size up to ~5 µm, and to energy spreads up to ~20%, making a compact all-optical collimation stage for laser-driven beams feasible.

What carries the argument

The key element is the "snail" target, a miniature curved coil whose laser-driven discharge current produces gigagauss-scale, quasi-static magnetic fields (the paper's model current is $I \approx 7\times10^5$ A, giving $B \sim 10^5$ T in the cavity) frozen into the hot plasma for ~100 ps. Field maps are constructed by Biot–Savart integration over current contours; protons are advanced by the relativistic Lorentz force with the Boris scheme. A paraxial solenoidal-lens formula $f = l/(\Phi \sin \Phi)$ with $\Phi = \omega_B l/(2v)$ provides a qualitative description of the collimation, with the optimal proton energy set by matching the focal length to the source–target distance.

What would settle it

Measure the magnetic field inside a snail target driven by a petawatt-class pulse, e.g. by proton deflectometry: if the field is below ~$10^4$ T or decays faster than ~10 ps, a 100 MeV proton beam will not see the focusing strength needed to cut divergence from 10° to 0.5°, and the predicted 8-fold flux gain will not appear.

Watch

Extended reading notes

Core claim

The central claim is that a ~$10^5$ T magnetic field induced in a laser-irradiated snail target can act as a compact magnetic lens for multi-MeV proton beams produced by TNSA. Tracking one million test protons through Biot–Savart fields from model current geometries, the paper finds that both a simple dipole-like "uniform" field and the more complex "coaxial" field profile from 2D PIC simulations collimate protons with energies near 100 MeV: divergence drops by more than a factor of ten, from 10° to ≈0.5°, and axial proton flux rises by roughly 8× for the uniform profile at 120 MeV and 5.5× for the coaxial profile at 110 MeV. The collimation is attributed almost entirely to the magnetic field; static electric fields up to 1 MV and inductive fields for decay times $ au_d \ge 10$ ps produce only a few percent change. The authors argue that a single laser pulse split into two beams—one to accelerate protons, one to drive the snail—suffices, and that tuning the field decay time could turn the device into an achromatic lens.

Load-bearing premise

The results assume a laser-driven snail target sustains a ~$10^5$ T magnetic field for roughly 100 picoseconds, a value taken from simulation rather than from direct measurement.

Editorial extensions

If this is right

  • A petawatt pulse split into two channels—one for TNSA proton acceleration, one for snail-field generation—could yield a compact, all-optical source of collimated ~100 MeV protons without a separate accelerator.
  • Beam divergence below 0.5° FWHM at the detector plane corresponds to a ≥100-fold reduction of the solid angle, enabling brighter beams for probing, radiography, or warm-dense-matter studies.
  • The collimation works for both uniform and coaxial field profiles, so moderate variations in field structure do not break the scheme, easing target fabrication constraints.
  • Quasi-monoenergetic beams with energy spread up to ~20% retain most of the flux gain (6–12% peak-density drop), and even ±50% spread leaves a recognizable collimated spot.
  • Tuning the magnetic field decay time could make the lens achromatic: slower protons arrive later and see a weaker field, compensating for their lower energy.

Reading between the lines

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

  • The scheme's promise hinges on reaching $10^5$ T fields with petawatt drivers; if experiments confirm only kilotesla fields at this pulse duration, the optimal energy drops to a few MeV and the 8-fold gain would occur at much lower proton energies, shifting the application space.
  • The residual 0.3–0.4° beam-axis shift and ≈1° residual divergence suggest an axisymmetric target (or deliberate field shaping) could further sharpen the collimated spot; the snail's open geometry is the likely symmetry-breaking source.
  • Extending the magnetic-lens analogy, the same snail stage might collimate heavier ions or positrons by rescaling energy and charge state, and the achromatic decay-time tuning could be tested by using different target materials.
  • The model treats the field as frozen and ignores plasma filling of the cavity; a kinetic (PIC) simulation of proton transport through the self-consistent fields would test whether plasma currents, not just the imposed current contours, alter the lens performance.
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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 / 3 minor

Summary. The paper proposes an all-optical setup in which a laser-driven 'snail' microcoil generates ~10^5 T magnetic fields that collimate TNSA-produced proton beams of ~100 MeV. Test-particle simulations, using prescribed current geometries that produce either a uniform (dipole-like) or a coaxial magnetic field profile, show that ~120 MeV (uniform) or ~110 MeV (coaxial) protons are collimated from an initial half-angle of 10° to below 0.5°, with an 8-fold (or 5.5-fold) increase of the proton flux at the beam center. The paper includes systematic sensitivity studies of the effects of inductive electric fields, static surface potentials, source size, energy spread, and a TNSA-like spectrum, finding that collimation persists except for very fast field decay or large source sizes. The central quantitative claims rest on the assumption that the snail target sustains a ~10^5 T field for ~100 ps, a value taken from the authors' own 2D PIC simulation rather than from experiment.

Significance. If the assumed field magnitude is correct, the proposed scheme would be a compact all-optical collimation stage for high-energy protons, which is of considerable interest for applications in hadron therapy, fast ignition, and fundamental studies. The paper is technically careful: the test-particle approach is standard, the sensitivity checks are extensive, and the comparison between uniform and coaxial field profiles is useful. The main weakness is that the load-bearing input—a ~10^5 T field sustained for ~100 ps—is not experimentally validated, and the paper does not quantify what fraction of the total beam is actually collimated, which leaves the practical significance partially open. The magnetic lens formula is used only as a post-hoc check and is not the basis of the main results.

major comments (3)
  1. [II] The field magnitude used throughout the paper is taken from the authors' own 2D PIC simulation (ref. 38), while the only cited experimental snail-target study (ref. 37) reports kilotesla fields. The paper provides no scaling law or independent support for the two-order-of-magnitude extrapolation to ~10^5 T, nor a sensitivity scan over the field strength. Since the optimal collimation energy scales roughly with the field magnitude, the central quantitative claims (120 MeV optimal energy, 8-fold flux gain) are conditional on an unmeasured input. The authors should add a parametric scan over B (e.g., 10^4–10^5 T) to show how the optimal proton energy and peak flux gain vary, or provide a detailed justification for the 10^5 T value from the PIC data.
  2. [III] The paper reports that the beam divergence decreases from 10° to 0.5°, but this applies only to the subset of protons that pass through the snail cavity. Figures 2(g) and 3(g) show that a substantial 'external' region remains at large angles, and the paper does not state what fraction of the total beam is actually collimated. Without this fraction, the 8-fold flux increase at the center of the detector and the factor-of-10 divergence reduction are potentially misleading for practical applications. The authors should report the total fraction of protons within a given angular interval before and after the snail, and qualify the divergence-reduction claim accordingly.
  3. [IV] The 'all-optical' aspect of the proposed setup is assumed rather than demonstrated. The paper does not model the simultaneous generation of TNSA protons and the snail field from one laser pulse or a split beam, nor does it analyze the compatibility of the required pulse parameters (intensity, duration, energy partition) or the timing between proton acceleration and field generation. Adding a feasibility discussion or a simple estimate (e.g., using published TNSA scalings and the snail field scalings) would strengthen the case for the integrated setup, which is a core part of the title and abstract.
minor comments (3)
  1. [III/Conclusion] The divergence angles are used inconsistently: the initial beam is described as having FWHM 20° and half-opening angle 10°, but the conclusion states 'from 10° to ≈ 0.5° (FWHM)', mixing half-angle and FWHM. Please clarify the definition consistently throughout the text.
  2. [II] The paper does not provide the numerical parameters of the Boris integrator (time step, spatial resolution used for field interpolation) or convergence tests. Adding these details would improve reproducibility.
  3. [II] The test-particle code is described as self-developed but not made available. If journal policy permits, a public repository would be beneficial, especially since the field inputs are synthetic and the results depend on the prescribed current geometry.

Circularity Check

1 steps flagged · score 4.0 of 10

The transport calculation is honest prescribed-field test-particle dynamics, but the central 1e5 T field input is imported from the authors' own prior PIC simulation rather than from independent evidence.

  1. self citation load bearing [Introduction (field scaling); Section II (simulation parameters)]
    "With more powerful laser drivers, even higher ∼ 10^5 T magnetic fields are predicted38. ... The current value was ≈ 7 · 10^5 A, which corresponds to the 10^5 T scale magnetic fields obtained in 2D PIC simulations in38."

    The paper's load-bearing magnetic field magnitude — the input that makes ~100 MeV proton collimation possible — is not measured or derived in the present work. It is taken from ref. 38, a 2D PIC study by the same authors, and the only snail-target experimental reference (ref. 37, also co-authored by the same group) reaches kilotesla, not 10^5 T. Thus the headline result inherits its decisive parameter from a self-citation chain rather than from external evidence. This is not an equation-level collapse: the test-particle transport is computed honestly from prescribed fields. But in the evidentiary sense, the central premise is circular because the same group's simulation both predicts the field and is assumed as input to the beam-collimation claim.

full rationale

The core derivation is a self-contained prescribed-field transport calculation: fixed current contours, Biot-Savart fields, Boris-scheme integration, and detector-plane statistics. No parameter is fitted to the collimation outcome. The current (7e5 A) and target potential (200 kV) are fixed before the energy scans; the simulations then scan proton energy, field profile, source size, energy spread, and field decay time. The magnetic-lens formula (Eq. 1) is used only as a qualitative post-hoc cross-check and is explicitly described as approximate, with a noted discrepancy. Consequently, there is no self-definitional or fitted-input-called-prediction circularity. The one significant self-citation issue is the magnitude and lifetime of the field: it is taken from the authors' own 2D PIC prediction (ref. 38), while the only snail-target experiment available to them (ref. 37) reaches kilotesla. This makes the practical relevance of the ~100 MeV collimation claim depend on an unverified self-cited prediction. The paper itself candidly states that 'experimental studies related to application of these targets to proton collimation are yet at the planning stage,' which supports reading this as a correctness/evidence risk rather than a deliberate derivation collapse. Overall, the beam-optics result has independent content and is not forced by construction, but the central field input is load-bearing and self-cited, giving a score of 4.

Assumptions & free parameters 4 free parameters · 6 assumptions · 0 invented entities

The central calculation rests on standard mechanics plus a series of physical idealizations: stationary fields, prescribed current paths, a collisionless beam, a point-like source, and an unmodeled laser-beam-sharing geometry. The main free parameters are the coil current (taken from a PIC prediction), the source distance, the initial beam divergence, and the target potential; none is fitted to the collimation output. No new physical entities are introduced.

free parameters (4)
  • Coil discharge current I = 7 x 10^5 A
    Set in Section II to reproduce the 1e5 T field predicted by 2D PIC simulations (ref 38); controls the collimation strength and the optimal proton energy.
  • Proton source distance from snail center = 0.5 mm
    Chosen in Section II; the optimal collimation depends on matching the lens focal length to the source distance, and Section III compares 500 um with f ~ 367 um.
  • Initial beam angular width (FWHM) = 20 degrees (half-angle 10 degrees)
    Assumed Gaussian source divergence in Section II; collimation gain and spot size depend on this input, though a TNSA-like angular-energy distribution is also tested in Section IV.
  • Target surface potential = 200 kV
    Set in Section II based on ref 37; varied from 0 to 1000 kV with negligible effect on ~100 MeV protons, so it is not load-bearing.
assumptions (6)
  • standard math The Lorentz force with stationary electromagnetic fields governs proton transport, and the Boris integration is accurate.
    Section II: relativistic equations of motion with the Lorentz force are integrated via the Boris scheme.
  • domain assumption The magnetic field is given by the Biot-Savart law for fixed current paths, with the coil and electron current geometries shown in Fig. 1.
    Section II: field profiles are reconstructed from prescribed currents; the coaxial profile is taken from 2D PIC simulations in ref 38.
  • domain assumption The magnetic field is quasi-static during proton transit, with decay time much longer than the sub-picosecond crossing time.
    Sections II and IV: field lifetime is cited from ref 37, and inductive electric fields are shown to be negligible for decay times of 10-100 ps.
  • domain assumption Proton beam space charge, scattering, and energy losses in the cavity plasma are negligible.
    Section II: based on typical TNSA beam charge and plasma densities of 1e19-1e21 cm^-3 over about 100 um.
  • domain assumption A point-like virtual proton source at 0.5 mm from the snail center adequately represents a TNSA source with effective size below about 5 um.
    Section IV: citing Borghesi et al. (ref 46) and Kugland et al. (ref 47), with auxiliary simulations for source diameters of 5 and 10 um.
  • ad hoc to paper A single laser pulse or a split beam can both accelerate protons via TNSA and drive the snail coil in the proposed all-optical geometry.
    The abstract and Section I state this possibility, but it is not modeled in the simulations, which use prescribed fields and an external proton source.

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Cite this review

Pith. "Pith review of All-optical compact setup for generation of collimated multi-MeV proton beams with a "snail" target." pith.science (2026). https://pith.science/paper/7YG52EJA

@misc{pith2026241117302,
  author       = {Pith},
  title        = {Pith review of: All-optical compact setup for generation of collimated multi-MeV proton beams with a "snail" target},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/7YG52EJA}},
  note         = {Machine review of arXiv:2411.17302}
}
abstract

The work considers an optical scheme for collimation of high-energy proton beams using $\sim 10^5$~T scale magnetic fields induced in a miniature "snail" target by petawatt or multi-petawatt laser irradiation in ps or fs regime. Such magnetic fields are known to be frozen into hot plasma and exist on at least a hundred of picoseconds time-scale, allowing their use for control of charged particle beams. The high values of the magnetic field along with the compact size perfectly match conditions for an all-in-one optical setup, where first, the laser beam accelerates protons, by, e.g. Target Normal Sheath Acceleration (TNSA) mechanism, and second, the closely positioned snail target is driven to guide the proton beam. An important issue is that the laser drivers for both proton acceleration schemes and the magnetic field generation in the considered targets may have the same properties, and even be parts of one splitted beam. Numerical simulations show that the considered setup can be used for efficient collimation of $\simeq 100$~MeV protons. The collimation effect weakly depends on the fine magnetic field structure and can be observed both for a simple magneto-dipole field profile and for a more complex coaxial-like profiles accounting for the intricate structure of electric currents in the interaction region. The obtained results are interesting for the development of intense laser-driven sources of charged particle beams with low divergence and high energy of accelerated particles.

Figures

Figures reproduced from arXiv: 2411.17302 by the authors.

Figure 1
Figure 1. Sketch of the proposed setup for producing high-energy [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. Results of test-particle simulations of proton beam trans [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
Figure 1
Figure 1. Projectile energies in range (50−200) MeV were con￾sidered. The obtained results are presented in [PITH_FULL_IMAGE:figures/full_fig_p003_1.png] view at source ↗
Figures from the paper (6 more)
Figure 3
Figure 3. Figure 3: Results of test-particle simulations of proton beam trans [PITH_FULL_IMAGE:figures/full_fig_p004_3.png]
Figure 4
Figure 4. Figure 4: Comparison of the results of test-particle simulations of [PITH_FULL_IMAGE:figures/full_fig_p005_4.png]
Figure 5
Figure 5. Figure 5: Results of test-particle simulations of proton beam trans [PITH_FULL_IMAGE:figures/full_fig_p005_5.png]
Figure 6
Figure 6. Figure 6: Results of test-particle simulations of proton beam trans [PITH_FULL_IMAGE:figures/full_fig_p006_6.png]
Figure 7
Figure 7. Figure 7: Results of test-particle simulations of a non-monoenergetic [PITH_FULL_IMAGE:figures/full_fig_p007_7.png]
Figure 8
Figure 8. Figure 8: Results of test-particle simulations of proton beam trans [PITH_FULL_IMAGE:figures/full_fig_p007_8.png]

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Reference graph

Works this paper leans on

63 extracted references · 30 canonical work pages

  1. [1]

    write newline

    " write newline "" before.all 'output.state := FUNCTION output.doi doi empty skip "doi:" doi * "" * output if FUNCTION format.archive archivePrefix empty "" archivePrefix ":" * if FUNCTION format.primaryClass primaryClass empty "" " [" primaryClass * "] " * if FUNCTION format.eprint eprint empty "" archive empty " https://arxiv.org/abs/" eprint * " " * " ...

  2. [2]

    , " * write output.state after.block = add.period write newline

    ENTRY address archive author booktitle chapter doi edition editor eid eprint howpublished institution journal key keywords month note number organization pages publisher school series title type url volume year archivePrefix primaryClass adsurl adsnote version label extra.label sort.label short.list INTEGERS output.state before.all mid.sentence after.sent...

  3. [3]

    write newline

    " write newline "" before.all 'output.state := FUNCTION add.period duplicate empty 'skip "." * add.blank if FUNCTION if.digit duplicate "0" = swap duplicate "1" = swap duplicate "2" = swap duplicate "3" = swap duplicate "4" = swap duplicate "5" = swap duplicate "6" = swap duplicate "7" = swap duplicate "8" = swap "9" = or or or or or or or or or FUNCTION ...

  4. [4]

    write newline

    " write newline " cite write " FUNCTION editor.postfix editor num.names #1 > "( )" "( )" if FUNCTION editor.trans.postfix editor num.names #1 > "( )" "( )" if FUNCTION trans.postfix translator num.names #1 > "( )" "( )" if FUNCTION authors.editors.reflist.apa5 'field := 'dot := field num.names 'numnames := numnames 'format.num.names := format.num.names na...

  5. [5]

    write newline

    " write newline "" before.all 'output.state := FUNCTION string.to.integer 't := t text.length 'k := #1 'char.num := t char.num #1 substring 's := s is.num s "." = or char.num k = not and char.num #1 + 'char.num := while char.num #1 - 'char.num := t #1 char.num substring FUNCTION find.integer 't := #0 'int := int not t empty not and t #1 #1 substring 's :=...

  6. [6]

    , " * write output.state after.block = add.period write newline

    ENTRY address author booktitle chapter doi edition editor eid howpublished institution journal key keywords month note number organization pages publisher school series title type url volume year eprint archive archivePrefix primaryClass adsurl adsnote version label INTEGERS output.state before.all mid.sentence after.sentence after.block FUNCTION init.sta...

  7. [7]

    write newline

    " write newline "" before.all 'output.state := FUNCTION if.digit duplicate "0" = swap duplicate "1" = swap duplicate "2" = swap duplicate "3" = swap duplicate "4" = swap duplicate "5" = swap duplicate "6" = swap duplicate "7" = swap duplicate "8" = swap "9" = or or or or or or or or or FUNCTION n.separate 't := "" #0 'numnames := t empty not t #-1 #1 subs...

  8. [8]

    Available from:

    ENTRY address assignee author booktitle chapter cartographer day edition editor howpublished institution inventor journal key keywords month note number organization pages part publisher school series title type volume word year eprint doi url lastchecked updated archive archivePrefix primaryClass eid adsurl adsnote version label INTEGERS output.state bef...

Show all 63 references
  1. [9]

    write newline

    " write newline "" before.all 'output.state := FUNCTION n.dashify 't := "" t empty not t #1 #1 substring "-" = t #1 #2 substring "--" = not "--" * t #2 global.max substring 't := t #1 #1 substring "-" = "-" * t #2 global.max substring 't := while if t #1 #1 substring * t #2 gl...

  2. [10]

    , " * write output.state after.block = add.period write newline

    ENTRY address archive author booktitle chapter edition editor eprint howpublished institution journal key keywords month note number organization pages publisher school series title type url doi volume year archivePrefix primaryClass eid adsurl adsnote version label INTEGERS o...

  3. [11]

    write newline

    " write newline "" before.all 'output.state := FUNCTION n.dashify 't := "" t empty not t #1 #1 substring "-" = t #1 #2 substring "--" = not "--" * t #2 global.max substring 't := t #1 #1 substring "-" = "-" * t #2 global.max substring 't := while if t #1 #1 substring * t #2 gl...

  4. [12]

    author author J. W. \ Yoon , author Y. G. \ Kim , author I. W. \ Choi , author J. H. \ Sung , author H. W. \ Lee , author S. K. \ Lee , \ and\ author C. H. \ Nam ,\ title title Realization of laser intensity over 10^ 23 w/cm ^2 , \ 10.1364/OPTICA.420520 journal journal Optica ...

    doi

  5. [13]

    author author G. A. \ Mourou , author T. Tajima , \ and\ author S. V. \ Bulanov ,\ title title Optics in the relativistic regime , \ 10.1103/RevModPhys.78.309 journal journal Rev. Mod. Phys. \ volume 78 ,\ pages 309--371 ( year 2006 ) NoStop

    doi

  6. [14]

    Pukhov , author Z.-M

    author author A. Pukhov , author Z.-M. \ Sheng , \ and\ author J. Meyer-ter Vehn ,\ title title Particle acceleration in relativistic laser channels , \ 10.1063/1.873242 journal journal Physics of Plasmas \ volume 6 ,\ pages 2847--2854 ( year 1999 ) ,\ http://arxiv.org/abs/htt...

    doi

  7. [15]

    author author A. Pukhov ,\ title title Strong field interaction of laser radiation , \ 10.1088/0034-4885/66/1/202 journal journal Reports on Progress in Physics \ volume 66 ,\ pages 47 ( year 2002 ) NoStop

    2002 doi

  8. [16]

    author author O. N. \ Rosmej , author M. Gyrdymov , author M. M. \ Günther , author N. E. \ Andreev , author P. Tavana , author P. Neumayer , author S. Zähter , author N. Zahn , author V. S. \ Popov , author N. G. \ Borisenko , author A. Kantsyrev , author A. Skobliakov , auth...

  9. [17]

    Esarey , author C

    author author E. Esarey , author C. B. \ Schroeder , \ and\ author W. P. \ Leemans ,\ title title Physics of laser-driven plasma-based electron accelerators , \ 10.1103/RevModPhys.81.1229 journal journal Rev. Mod. Phys. \ volume 81 ,\ pages 1229--1285 ( year 2009 ) NoStop

    doi

  10. [18]

    Maksimchuk , author S

    author author A. Maksimchuk , author S. Gu , author K. Flippo , author D. Umstadter , \ and\ author V. Y. \ Bychenkov ,\ title english title Forward ion acceleration in thin films driven by a high-intensity laser , \ 10.1103/PhysRevLett.84.4108 journal journal Phys. Rev. Lett....

    doi

  11. [19]

    author author R. A. \ Snavely , author M. H. \ Key , author S. P. \ Hatchett , author T. E. \ Cowan , author M. Roth , author T. W. \ Phillips , author M. A. \ Stoyer , author E. A. \ Henry , author T. C. \ Sangster , author M. S. \ Singh , author S. C. \ Wilks , author A. Mac...

  12. [20]

    Roth \ and\ author M

    author author M. Roth \ and\ author M. Schollmeier ,\ title english title Ion acceleration—target normal sheath acceleration , \ 10.5170/CERN-2016-001.231 journal journal CERN Yellow Reports \ volume 1 (2016): Proceedings of the 2014 CAS-CERN Accelerator School: Plasma Wake Ac...

    2016 doi

  13. [21]

    Katsouleas , author S

    author author T. Katsouleas , author S. Lee , author S. Chattopadhyay , author W. Leemand , author R. Assmann , author P. Chen , author F. Decker , author R. Iverson , author T. Kotseroglou , author P. Raimondi , author T. Raubenheimer , author S. Eokni , author R. Siemann , a...

  14. [22]

    u nther , author O. N. \ Rosmej , author P. Tavana , author M. Gyrdymov , author A. Skobliakov , author A. Kantsyrev , author S. Z \

    author author M. M. \ G \"u nther , author O. N. \ Rosmej , author P. Tavana , author M. Gyrdymov , author A. Skobliakov , author A. Kantsyrev , author S. Z \"a hter , author N. G. \ Borisenko , author A. Pukhov , \ and\ author N. E. \ Andreev ,\ title title Forward-looking in...

    doi

  15. [23]

    u nther , author J. Cikhardt , author S. Z \

    author author P. Tavana , author N. Bukharskii , author M. Gyrdymov , author U. Spillmann , author M. M. \ G \"u nther , author J. Cikhardt , author S. Z \"a hter , author N. G. \ Borisenko , author P. Korneev , author J. Jacoby , author C. Spielmann , author N. E. \ Andreev ,...

  16. [24]

    Ma , author H

    author author Z. Ma , author H. Lan , author W. Liu , author S. Wu , author Y. Xu , author Z. Zhu , \ and\ author W. Luo ,\ title title Photonuclear production of medical isotopes 62,64Cu using intense laser-plasma electron source , \ 10.1063/1.5100925 journal journal Matter a...

    doi

  17. [25]

    author author V. G. \ Nedorezov , author S. G. \ Rykovanov , \ and\ author A. B. \ Savel’ev ,\ title title Nuclear photonics: results and prospects , \ 10.3367/UFNe.2021.03.038960 journal journal Physics-Uspekhi \ volume 64 ,\ pages 1214 ( year 2021 ) NoStop

    2021 doi

  18. [26]

    Willingale , author P

    author author L. Willingale , author P. M. \ Nilson , author M. C. \ Kaluza , author A. E. \ Dangor , author R. G. \ Evans , author P. Fernandes , author M. G. \ Haines , author C. Kamperidis , author R. J. \ Kingham , author C. P. \ Ridgers , author M. Sherlock , author A. G....

  19. [28]

    Gao , author H

    author author L. Gao , author H. Ji , author G. Fiksel , author W. Fox , author M. Evans , \ and\ author N. Alfonso ,\ title title Ultrafast proton radiography of the magnetic fields generated by a laser-driven coil current , \ 10.1063/1.4945643 journal journal Physics of Plas...

    doi

  20. [29]

    author author C. A. J. \ Palmer , author P. T. \ Campbell , author Y. Ma , author L. Antonelli , author A. F. A. \ Bott , author G. Gregori , author J. Halliday , author Y. Katzir , author P. Kordell , author K. Krushelnick , author S. V. \ Lebedev , author E. Montgomery , aut...

  21. [30]

    Bradford , author M

    author author P. Bradford , author M. P. \ Read , author M. Ehret , author L. Antonelli , author M. Khan , author N. Booth , author K. Glize , author D. Carroll , author R. J. \ Clarke , author R. Heathcote , \ and\ author et al. ,\ title title Proton deflectometry of a capaci...

    doi

  22. [31]

    author author P. K. \ Patel , author A. J. \ Mackinnon , author M. H. \ Key , author T. E. \ Cowan , author M. E. \ Foord , author M. Allen , author D. F. \ Price , author H. Ruhl , author P. T. \ Springer , \ and\ author R. Stephens ,\ title title Isochoric heating of solid-d...

    doi

  23. [32]

    author author G. M. \ Dyer , author A. C. \ Bernstein , author B. I. \ Cho , author J. Osterholz , author W. Grigsby , author A. Dalton , author R. Shepherd , author Y. Ping , author H. Chen , author K. Widmann , \ and\ author T. Ditmire ,\ title title Equation-of-state measur...

    doi

  24. [33]

    Temporal , author J

    author author M. Temporal , author J. J. \ Honrubia , \ and\ author S. Atzeni ,\ title title Numerical study of fast ignition of ablatively imploded deuterium–tritium fusion capsules by ultra-intense proton beams , \ 10.1063/1.1482375 journal journal Physics of Plasmas \ volum...

    doi

  25. [34]

    author author V. Y. \ Bychenkov , author W. Rozmus , author A. Maksimchuk , author D. Umstadter , \ and\ author C. E. \ Capjack ,\ title title Fast ignitor concept with light ions , \ 10.1134/1.1426135 journal journal Plasma Physics Reports \ volume 27 ,\ pages 1017--1020 ( ye...

    doi

  26. [35]

    Bulanov , author T

    author author S. Bulanov , author T. Esirkepov , author V. Khoroshkov , author A. Kuznetsov , \ and\ author F. Pegoraro ,\ title title Oncological hadrontherapy with laser ion accelerators , \ https://doi.org/10.1016/S0375-9601(02)00521-2 journal journal Physics Letters A \ vo...

    doi

  27. [36]

    Fourkal , author B

    author author E. Fourkal , author B. Shahine , author M. Ding , author J. S. \ Li , author T. Tajima , \ and\ author C.-M. \ Ma ,\ title title Particle in cell simulation of laser-accelerated proton beams for radiation therapy , \ https://doi.org/10.1118/1.1521122 journal jour...

    doi

  28. [37]

    Fourkal , author J

    author author E. Fourkal , author J. S. \ Li , author M. Ding , author T. Tajima , \ and\ author C.-M. \ Ma ,\ title title Particle selection for laser-accelerated proton therapy feasibility study , \ https://doi.org/10.1118/1.1586268 journal journal Medical Physics \ volume 3...

    doi

  29. [38]

    Bailly-Grandvaux , author J

    author author M. Bailly-Grandvaux , author J. J. \ Santos , author C. Bellei , author P. Forestier-Colleoni , author S. Fujioka , author L. Giuffrida , author J. J. \ Honrubia , author D. Batani , author R. Bouillaud , author M. Chevrot , author J. E. \ Cross , author R. Crows...

  30. [39]

    author author J. J. \ Santos , author M. Bailly-Grandvaux , author M. Ehret , author A. V. \ Arefiev , author D. Batani , author F. N. \ Beg , author A. Calisti , author S. Ferri , author R. Florido , author P. Forestier-Colleoni , author S. Fujioka , author M. A. \ Gigosos , ...

  31. [40]

    Kar , author H

    author author S. Kar , author H. Ahmed , author R. Prasad , author M. Cerchez , author S. Brauckmann , author B. Aurand , author G. Cantono , author P. Hadjisolomou , author C. L. S. \ Lewis , author A. Macchi , author G. Nersisyan , author A. P. L. \ Robinson , author A. M. \...

    doi

  32. [41]

    Ahmed , author S

    author author H. Ahmed , author S. Kar , author G. Cantono , author P. Hadjisolomou , author A. Poye , author D. Gwynne , author C. L. S. \ Lewis , author A. Macchi , author K. Naughton , author G. Nersisyan , author V. Tikhonchuk , author O. Willi , \ and\ author M. Borghesi ...

    doi

  33. [42]

    Liu , author Y

    author author Z. Liu , author Y. Gao , author Q. Wu , author Z. Pan , author Y. Liang , author T. Song , author T. Xu , author Y. Shou , author Y. Zhang , author H. Chen , author Q. Han , author C. Hua , author X. Chen , author S. Xu , author Z. Mei , author P. Wang , author Z...

    doi

  34. [43]

    author author J. J. \ Santos , author M. Bailly-Grandvaux , author L. Giuffrida , author P. Forestier-Colleoni , author S. Fujioka , author Z. Zhang , author P. Korneev , author R. Bouillaud , author S. Dorard , author D. Batani , author M. Chevrot , author J. E. \ Cross , aut...

    arXiv

  35. [44]

    author author K. F. F. \ Law , author M. Bailly-Grandvaux , author A. Morace , author S. Sakata , author K. Matsuo , author S. Kojima , author S. Lee , author X. Vaisseau , author Y. Arikawa , author A. Yogo , author K. Kondo , author Z. Zhang , author C. Bellei , author J. J....

    doi

  36. [45]

    Daido , author F

    author author H. Daido , author F. Miki , author K. Mima , author M. Fujita , author K. Sawai , author H. Fujita , author Y. Kitagawa , author S. Nakai , \ and\ author C. Yamanaka ,\ title title Generation of a strong magnetic field by an intense CO2 laser pulse , \ 10.1103/Ph...

    doi

  37. [46]

    Courtois , author A

    author author C. Courtois , author A. D. \ Ash , author D. M. \ Chambers , author R. A. D. \ Grundy , \ and\ author N. C. \ Woolsey ,\ title title Creation of a uniform high magnetic-field strength environment for laser-driven experiments , \ 10.1063/1.2035896 journal journal ...

    doi

  38. [47]

    Ehret , author M

    author author M. Ehret , author M. Bailly-Grandvaux , author Ph . Korneev , author J. I. \ Apiñaniz , author C. Brabetz , author A. Morace , author P. Bradford , author E. d'Humières , author G. Schaumann , author V. Bagnoud , author S. Malko , author K. Matveevskii , author M...

    doi

  39. [48]

    Ehret , author Y

    author author M. Ehret , author Y. Kochetkov , author Y. Abe , author K. F. F. \ Law , author N. Bukharskii , author V. Stepanischev , author S. Fujioka , author E. d'Humi\`eres , author B. Zielbauer , author V. Bagnoud , author G. Schaumann , author T. Somekawa , author M. Ro...

    doi

  40. [49]

    author author N. D. \ Bukharskii \ and\ author P. A. \ Korneev ,\ title title Study of a highly magnetized relativistic plasma in the context of laboratory astrophysics and particle flow control , \ 10.3103/S1068335623200022 journal journal Bulletin of the Lebedev Physics Inst...

    doi

  41. [50]

    Korneev , author E

    author author Ph . Korneev , author E. D'Humières , \ and\ author V. Tikhonchuk ,\ title title Gigagauss-scale quasistatic magnetic field generation in a snail-shaped target , \ 10.1103/PhysRevE.91.043107 journal journal Physical Review E \ volume 91 ,\ pages 43107 ( year 2015...

    arXiv

  42. [51]

    author author P. Korneev ,\ title title Magnetized plasma structures in laser-irradiated curved targets , \ 10.1088/1742-6596/788/1/012042 journal journal Journal of Physics: Conference Series \ volume 788 ,\ pages 012042 ( year 2017 ) NoStop

    doi

  43. [52]

    Van Rossum \ and\ author F

    author author G. Van Rossum \ and\ author F. L. \ Drake ,\ @noop english title Python 3 Reference Manual \ ( publisher CreateSpace ,\ address Scotts Valley, CA ,\ year 2009 ) NoStop

    2009

  44. [53]

    author author C. R. \ Harris , author K. J. \ Millman , author S. J. \ van der Walt , author R. Gommers , author P. Virtanen , author D. Cournapeau , author E. Wieser , author J. Taylor , author S. Berg , author N. J. \ Smith , author R. Kern , author M. Picus , author S. Hoye...

  45. [54]

    author author S. K. \ Lam , author A. Pitrou , \ and\ author S. Seibert ,\ title english title Numba: a llvm-based python jit compiler , \ in\ 10.1145/2833157.2833162 english booktitle Proceedings of the Second Workshop on the LLVM Compiler Infrastructure in HPC ,\ series and ...

  46. [55]

    author author J. P. \ Boris ,\ title title Relativistic plasma simulation-optimization of a hybrid code , \ @noop journal journal Proceeding of Fourth Conference on Numerical Simulations of Plasmas \ ( year 1970 ) NoStop

    1970

  47. [56]

    Reiser ,\ http://dx.doi.org/10.1002/9783527622047 title Theory and design of charged particle beams , \ ( year 2008 ) NoStop

    author author M. Reiser ,\ http://dx.doi.org/10.1002/9783527622047 title Theory and design of charged particle beams , \ ( year 2008 ) NoStop

    2008 doi

  48. [57]

    Borghesi , author A

    author author M. Borghesi , author A. J. \ Mackinnon , author D. H. \ Campbell , author D. G. \ Hicks , author S. Kar , author P. K. \ Patel , author D. Price , author L. Romagnani , author A. Schiavi , \ and\ author O. Willi ,\ title title Multi-mev proton source investigatio...

    doi

  49. [58]

    author author N. L. \ Kugland , author D. D. \ Ryutov , author C. Plechaty , author J. S. \ Ross , \ and\ author H.-S. \ Park ,\ title title Invited Article: Relation between electric and magnetic field structures and their proton-beam images , \ 10.1063/1.4750234 journal jour...

    doi

  50. [59]

    author author B. M. \ Hegelich , author B. J. \ Albright , author J. Cobble , author K. Flippo , author S. Letzring , author M. Paffett , author H. Ruhl , author J. Schreiber , author R. K. \ Schulze , \ and\ author J. C. \ Fern \'a ndez ,\ title title Laser acceleration of qu...

    doi

  51. [60]

    Schwoerer , author S

    author author H. Schwoerer , author S. Pfotenhauer , author O. J \"a ckel , author K.-U. \ Amthor , author B. Liesfeld , author W. Ziegler , author R. Sauerbrey , author K. W. D. \ Ledingham , \ and\ author T. Esirkepov ,\ title title Laser-plasma acceleration of quasi-monoene...

    doi

  52. [61]

    Ter-Avetisyan , author M

    author author S. Ter-Avetisyan , author M. Schn\"urer , author P. V. \ Nickles , author M. Kalashnikov , author E. Risse , author T. Sokollik , author W. Sandner , author A. Andreev , \ and\ author V. Tikhonchuk ,\ title title Quasimonoenergetic deuteron bursts produced by ult...

    doi

  53. [62]

    author author I. Y. \ Kostyukov , author E. A. \ Khazanov , author A. A. \ Shaikin , author A. G. \ Litvak , \ and\ author A. M. \ Sergeev ,\ title title International exawatt center for extreme light studies (xcels): Laser system and experiment program , \ 10.3103/S1068335623...

    doi

  54. [63]

    author author C. N. \ Danson , author C. Haefner , author J. Bromage , author T. Butcher , author J.-C. F. \ Chanteloup , author E. A. \ Chowdhury , author A. Galvanauskas , author L. A. \ Gizzi , author J. Hein , author D. I. \ Hillier , \ and\ author et al. ,\ title title Pe...

    doi

  55. [64]

    write newline

    " write newline "" before.all 'output.state := FUNCTION string.to.integer 't := t text.length 'k := #1 'char.num := t char.num #1 substring 's := s is.num s "." = or char.num k = not and char.num #1 + 'char.num := while char.num #1 - 'char.num := t #1 char.num substring FUNCTI...

Pith tools

Reviewed August 12, 2026 · model on record in the stance chip above.