Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4943078
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Funding
- Collaboration Research Program by National Institute for Fusion Science [NIFS12KUGK057, NIFS11KUGK053, NIFS15KUGK087]
- Institute of Laser Engineering at Osaka University [2015A1-19, 2015A1-31]
- Japanese Ministry of Education, Science, Sports, and Culture (MEXT)
- Japan Society for the Promotion of Science (JSPS) [24684044, 26820396, 25630419]
- JSPS [14J06592]
- NSFC
- French state through research project TERRE (French National Agency for Research (ANR)) [ANR-2011-BS04-014]
- French state through research project ARIEL (Regional Council of Aquitaine)
- COST Action MP1208 Developing the physics and the scientific community for inertial fusion
- Marie Curie - International Incoming Fellowships (IIF)
- European Commission (EC)
- French state through research project TERRE (Competitiveness cluster Route des Lasers) [ANR-2011-BS04-014]
- [ANR-10-IDEX-03-02]
- Grants-in-Aid for Scientific Research [26820396, 24684044, 26246043, 25630419, 14J06592] Funding Source: KAKEN
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A kilo-tesla level, quasi-static magnetic field (B-field), which is generated with an intense laser-driven capacitor-coil target, was measured by proton deflectometry with a proper plasma shielding. Proton deflectometry is a direct and reliable method to diagnose strong, mm(3)-scale laser-produced B-field; however, this was not successful in the previous experiment. A target-normal-sheath-accelerated proton beam is deflected by Lorentz force in the laser-produced magnetic field with the resulting deflection pattern recorded on a radiochromic film stack. A 610 +/- 630 T of B-field amplitude was inferred by comparing the experimental proton pattern with Monte-Carlo calculations. The amplitude and temporal evolutions of the laser-generated B-field were also measured by a differential magnetic probe, independently confirming the proton deflectometry measurement results. (C) 2016 AIP Publishing LLC.
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