Measuring magnetic fields in laser-driven coils with dual-axis proton deflectometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00549030" target="_blank" >RIV/68378271:_____/21:00549030 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0325071" target="_blank" >http://hdl.handle.net/11104/0325071</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6587/ac0bca" target="_blank" >10.1088/1361-6587/ac0bca</a>
Alternative languages
Result language
angličtina
Original language name
Measuring magnetic fields in laser-driven coils with dual-axis proton deflectometry
Original language description
By driving hot electrons between two metal plates connected by a wire loop, high power lasers can generate multi-tesla, quasi-static magnetic fields in miniature coil targets. Many experiments involving laser-coil targets rely on proton deflectometry directed perpendicular to the coil axis to extract a measurement of the magnetic field. In this paper, we show that quantitative measurements using perpendicular probing are complicated by the presence of GV m−1 electric fields in the target that develop on sub-ns timescales. Probing parallel to the coil axis with fiducial grids is shown to reliably separate the electric and magnetic field measurements, giving current estimates of I ≈ 5 kA in 1 mm- and 2 mm-diameter wire loops. An analytic model of proton deflection in electric and magnetic fields is used to benchmark results from the particle-in-cell code and help deconvolve the magnetic and electric field deflections. Results are used to motivate a new experimental scheme that combines a single-plate target with axial proton probing and direct current measurements.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LQ1606" target="_blank" >LQ1606: ELI Beamlines: International Center of Excelence</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plasma Physics and Controlled Fusion
ISSN
0741-3335
e-ISSN
1361-6587
Volume of the periodical
63
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
084008
UT code for WoS article
000669098600001
EID of the result in the Scopus database
2-s2.0-85109807803