Laser-Driven Magnetic-Flux Compression in High-Energy-Density Plasmas

Journal Article · Fri Nov 20 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.215004· OSTI ID:21370857

Gotchev, O V; Polomarov, O ^[1]; Chang, P Y ^[1]; Knauer, J P ^[1]; Meyerhofer, D D; Betti, R ^[1]; Frenje, J; Li, C K; Manuel, M J -E; Petrasso, R D; Seguin, F H ^[2]; Rygg, J R ^[3]

---

1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623 (United States)
2. Fusion Science Center for Extreme States of Matter, University of Rochester, 250 East River Road, Rochester, New York 14623 (United States)
3. Lawrence Livermore National Laboratory, Livermore, California (United States)

The demonstration of magnetic field compression to many tens of megagauss in cylindrical implosions of inertial confinement fusion targets is reported for the first time. The OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] was used to implode cylindrical CH targets filled with deuterium gas and seeded with a strong external field (>50 kG) from a specially developed magnetic pulse generator. This seed field was trapped (frozen) in the shock-heated gas fill and compressed by the imploding shell at a high implosion velocity, minimizing the effect of resistive flux diffusion. The magnetic fields in the compressed core were probed via proton deflectrometry using the fusion products from an imploding D{sub 3}He target. Line-averaged magnetic fields between 30 and 40 MG were observed.

• OSTI ID: 21370857
• Journal Information: Physical Review Letters, Vol. 103, Issue 21; Other Information: DOI: 10.1103/PhysRevLett.103.215004; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DEUTERIUM
ENERGY DENSITY
IMPLOSIONS
LASERS
MAGNETIC FIELDS
MAGNETIC FLUX
PLASMA
PROTONS
PULSE GENERATORS
BARYONS
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
FUNCTION GENERATORS
HADRONS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
STABLE ISOTOPES