Matthaeus, William H.Goldstein, MelvynSmith, Charles2023-11-022023-11-021982-05-03Matthaeus, William H., Melvyn L. Goldstein, and Charles Smith. “Evaluation of Magnetic Helicity in Homogeneous Turbulence.” Physical Review Letters 48, no. 18 (May 3, 1982): 1256–59. https://doi.org/10.1103/PhysRevLett.48.1256.https://doi.org/10.1103/PhysRevLett.48.1256http://hdl.handle.net/11603/30514A technique is presented for the measurement of magnetic helicity from values of the two-point magnetic-field correlation matrix under the assumption of spatial homogeneity. Knowledge of a single scalar function of space, derivable from the correlation matrix, suffices to determine the magnetic helicity. The technique is illustrated by a report of the first measurement of the magnetic helicity of the solar wind.4 pagesen-USThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Public Domain Mark 1.0http://creativecommons.org/publicdomain/mark/1.0/Text