Magnetic field measurements in laser-produced plasmas via proton deflectometry

C. A. Cecchetti; M. Borghesi; J. Fuchs; G. Schurtz; S. Kar; A. MacChi; L. Romagnani; P. A. Wilson; P. Antici; R. Jung; J. Osterholtz; C. A. Pipahl; O. Willi; A. Schiavi; M. Notley; D. Neely

doi:10.1063/1.3097899

Magnetic field measurements in laser-produced plasmas via proton deflectometry

C. A. Cecchetti
, M. Borghesi
, J. Fuchs
, G. Schurtz
, S. Kar
, A. MacChi
, L. Romagnani
, P. A. Wilson
, P. Antici
, R. Jung
, J. Osterholtz
, C. A. Pipahl
, O. Willi
, A. Schiavi
, M. Notley
, D. Neely

Research output: Contribution to journal › Article › peer-review

Abstract

Large magnetic fields generated during laser-matter interaction at irradiances of ∼5× 1014 W cm-2 have been measured using a deflectometry technique employing MeV laser-accelerated protons. Azimuthal magnetic fields were identified unambiguously via a characteristic proton deflection pattern and found to have an amplitude of ∼45 T in the outer coronal region. Comparison with magnetohydrodynamic simulations confirms that in this regime the ∇^→ T_e × ∇^→ ne source is the main field generation mechanism, while additional terms are negligible.

Original language	English
Article number	043102
Journal	Physics of Plasmas
Volume	16
Issue number	4
DOIs	https://doi.org/10.1063/1.3097899
Publication status	Published - 1 Jan 2009

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Cecchetti, C. A., Borghesi, M., Fuchs, J., Schurtz, G., Kar, S., MacChi, A., Romagnani, L., Wilson, P. A., Antici, P., Jung, R., Osterholtz, J., Pipahl, C. A., Willi, O., Schiavi, A., Notley, M., & Neely, D. (2009). Magnetic field measurements in laser-produced plasmas via proton deflectometry. Physics of Plasmas, 16(4), Article 043102. https://doi.org/10.1063/1.3097899

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title = "Magnetic field measurements in laser-produced plasmas via proton deflectometry",

abstract = "Large magnetic fields generated during laser-matter interaction at irradiances of ∼5× 1014 W cm-2 have been measured using a deflectometry technique employing MeV laser-accelerated protons. Azimuthal magnetic fields were identified unambiguously via a characteristic proton deflection pattern and found to have an amplitude of ∼45 T in the outer coronal region. Comparison with magnetohydrodynamic simulations confirms that in this regime the ∇→ Te × ∇→ ne source is the main field generation mechanism, while additional terms are negligible.",

author = "Cecchetti, \{C. A.\} and M. Borghesi and J. Fuchs and G. Schurtz and S. Kar and A. MacChi and L. Romagnani and Wilson, \{P. A.\} and P. Antici and R. Jung and J. Osterholtz and Pipahl, \{C. A.\} and O. Willi and A. Schiavi and M. Notley and D. Neely",

year = "2009",

month = jan,

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doi = "10.1063/1.3097899",

language = "English",

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journal = "Physics of Plasmas",

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TY - JOUR

T1 - Magnetic field measurements in laser-produced plasmas via proton deflectometry

AU - Cecchetti, C. A.

AU - Borghesi, M.

AU - Fuchs, J.

AU - Schurtz, G.

AU - Kar, S.

AU - MacChi, A.

AU - Romagnani, L.

AU - Wilson, P. A.

AU - Antici, P.

AU - Jung, R.

AU - Osterholtz, J.

AU - Pipahl, C. A.

AU - Willi, O.

AU - Schiavi, A.

AU - Notley, M.

AU - Neely, D.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - Large magnetic fields generated during laser-matter interaction at irradiances of ∼5× 1014 W cm-2 have been measured using a deflectometry technique employing MeV laser-accelerated protons. Azimuthal magnetic fields were identified unambiguously via a characteristic proton deflection pattern and found to have an amplitude of ∼45 T in the outer coronal region. Comparison with magnetohydrodynamic simulations confirms that in this regime the ∇→ Te × ∇→ ne source is the main field generation mechanism, while additional terms are negligible.

AB - Large magnetic fields generated during laser-matter interaction at irradiances of ∼5× 1014 W cm-2 have been measured using a deflectometry technique employing MeV laser-accelerated protons. Azimuthal magnetic fields were identified unambiguously via a characteristic proton deflection pattern and found to have an amplitude of ∼45 T in the outer coronal region. Comparison with magnetohydrodynamic simulations confirms that in this regime the ∇→ Te × ∇→ ne source is the main field generation mechanism, while additional terms are negligible.

U2 - 10.1063/1.3097899

DO - 10.1063/1.3097899

M3 - Article

AN - SCOPUS:65449180328

SN - 1070-664X

VL - 16

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 4

M1 - 043102

ER -

Magnetic field measurements in laser-produced plasmas via proton deflectometry

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