Measuring<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>E</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>Fields in Laser-Produced Plasmas with Monoenergetic Proton Radiography

Li, C. K.; Séguin, F. H.; Frenje, J. A.; Rygg, J. R.; Petrasso, R. D.; Town, R. P. J.; Amendt, Peter; Hatchett, S. P.; Landen, O. L.; Mackinnon, A. J.; Patel, P. K.; Smalyuk, V. A.; Sangster, T. C.; Knauer, J. P.

doi:10.1103/physrevlett.97.135003

Cited by 217 publications

(143 citation statements)

References 21 publications

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“…CR-39 has also been fielded in a diagnostic for imaging ICF implosions, 7,8 which has allowed the detailed study of field structures in those experiments. 9,10 In these diagnostics, the track diameters are often used to discern different charged-particle species, and in several cases are used to determine the energy of the incident particle. A thorough understanding of the response of CR-39 to charged-particles is often important and sometimes essential for the success of such diagnostic instrumentation.…”

Section: Introductionmentioning

confidence: 99%

The response of CR-39 nuclear track detector to 1–9 MeV protons

Sinenian

Rosenberg

Manuel

et al. 2011

Review of Scientific Instruments

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The response of CR-39 nuclear track detector (TasTrak®) to protons in the energy range of 0.92–9.28 MeV has been studied. Previous studies of the CR-39 response to protons have been extended by examining the piece-to-piece variability in addition to the effects of etch time and etchant temperature; it is shown that the shape of the CR-39 response curve to protons can vary from piece-to-piece. Effects due to the age of CR-39 have also been studied using 5.5 MeV alpha particles over a 5-year period. Track diameters were found to degrade with the age of the CR-39 itself rather than the age of the tracks, consistent with previous studies utilizing different CR-39 over shorter time periods.

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Section: Introductionmentioning

confidence: 99%

The response of CR-39 nuclear track detector to 1–9 MeV protons

Sinenian

Rosenberg

Manuel

et al. 2011

Review of Scientific Instruments

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“…The Biermann mechanism is also the presumed cause of self-generated magnetic fields (of order 10 6 G, β ∼ 1) found in laser-solid interaction experiments [6][7][8] . The laser generates an expanding bubble of plasma by hitting and ionizing a solid foil of metal or plastic.…”

Section: Introductionmentioning

confidence: 99%

The generation of magnetic fields by the Biermann battery and the interplay with the Weibel instability

et al. 2016

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An investigation of magnetic fields generated in an expanding bubble of plasma with misaligned temperature and density gradients (driving the Biermann battery mechanism) is performed. With gradient scales L, largescale magnetic fields are generated by the Biermann battery mechanism with plasma β ∼ 1, as long as L is comparable to the ion inertial length d i . For larger system sizes, L/d e > 100 (where d e is the electron inertial length), the Weibel instability generates magnetic fields of similar magnitude but with wavenumber kd e ≈ 0.2. In both cases, the growth and saturation of these fields have a weak dependence on mass ratio m i /m e , indicating electron mediated physics. A scan in system size is performed at m i /m e = 2000, showing agreement with previous results with m i /m e = 25. In addition, the instability found at large system sizes is quantitatively demonstrated to be the Weibel instability. Furthermore, magnetic and electric energy spectra at scales below the electron Larmor radius are found to exhibit power law behavior with spectral indices −16/3 and −4/3, respectively.

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“…With proton imaging the ion acceleration process itself [105,113] was investigated recently. The electrostatic acceleration field and the field of the expanding ion front as well as toroidal magnetic fields [114][115][116] were imaged. In the following experiments done with the a chain of motorized stacks allows only a few shots before it is necessary to open the chamber.…”

Section: Principle Of Proton Imagingmentioning

confidence: 99%

Investigations of Field Dynamics in Laser Plasmas with Proton Imaging

Sokollik

2011

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MeasuringEandBFields in Laser-Produced Plasmas with Monoenergetic Proton Radiography

Cited by 217 publications

References 21 publications

The response of CR-39 nuclear track detector to 1–9 MeV protons

The response of CR-39 nuclear track detector to 1–9 MeV protons

The generation of magnetic fields by the Biermann battery and the interplay with the Weibel instability

Investigations of Field Dynamics in Laser Plasmas with Proton Imaging

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