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Title: Measurements of the Canonical Helicity of a Gyrating Kink

Conversions between magnetic and kinetic energy occur over a range of plasma scales in astrophysical and solar dynamos and reconnection in the solar corona and the laboratory. Canonical flux tubes reconcile all plasma regimes with concepts of twists, writhes, and linkages. We present measurements of canonical flux tubes, their helicity, and their helicity transport in a gyrating plasma kink. The helicity gauge is removed with general techniques valid even if only a limited section of the plasma is measured. Temporal asymmetries in the helicities confirm irreducible 3D fields in the kink.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Tokyo (Japan). Graduate School of Frontier Sciences
Publication Date:
Report Number(s):
LLNL-JRNL-747364
Journal ID: ISSN 0031-9007; 932189
Grant/Contract Number:
AC52-07NA27344; SC0010340; NNHIOA044I-Basic
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 3; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); National Aeronautic and Space Administration (NASA); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; dynamo theory; magnetic field generation & plasma dynamo; magnetic reconnection
OSTI Identifier:
1460609
Alternate Identifier(s):
OSTI ID: 1465280

von der Linden, Jens, Sears, Jason, Intrator, Thomas, and You, Setthivoine. Measurements of the Canonical Helicity of a Gyrating Kink. United States: N. p., Web. doi:10.1103/PhysRevLett.121.035001.
von der Linden, Jens, Sears, Jason, Intrator, Thomas, & You, Setthivoine. Measurements of the Canonical Helicity of a Gyrating Kink. United States. doi:10.1103/PhysRevLett.121.035001.
von der Linden, Jens, Sears, Jason, Intrator, Thomas, and You, Setthivoine. 2018. "Measurements of the Canonical Helicity of a Gyrating Kink". United States. doi:10.1103/PhysRevLett.121.035001.
@article{osti_1460609,
title = {Measurements of the Canonical Helicity of a Gyrating Kink},
author = {von der Linden, Jens and Sears, Jason and Intrator, Thomas and You, Setthivoine},
abstractNote = {Conversions between magnetic and kinetic energy occur over a range of plasma scales in astrophysical and solar dynamos and reconnection in the solar corona and the laboratory. Canonical flux tubes reconcile all plasma regimes with concepts of twists, writhes, and linkages. We present measurements of canonical flux tubes, their helicity, and their helicity transport in a gyrating plasma kink. The helicity gauge is removed with general techniques valid even if only a limited section of the plasma is measured. Temporal asymmetries in the helicities confirm irreducible 3D fields in the kink.},
doi = {10.1103/PhysRevLett.121.035001},
journal = {Physical Review Letters},
number = 3,
volume = 121,
place = {United States},
year = {2018},
month = {7}
}