title: X-ray-line diagnostic of magnetic field strength for high-temperature plasmas.
abstract: An x-ray line diagnostic for use in magnetic field measurements in high-temperature plasmas has been identified. The intensity of the otherwise strictly forbidden 1s(2)2s(2)2p(1/2)2p(4)(3/2)3s(1/2) 3P0-->1s(2)2s(2)2p(6) 1S0 transition in neonlike ions is shown to depend on the magnetic field strength. The field dependence is illustrated between one and 3 T in the Ar8+ spectrum. The line is well resolved, bright, and close to reference lines, making it an experimentally simple to use diagnostic.
authors.affiliation: Department of Physics and Advanced Technologies, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
authors.forename: P
authors.initials: P
authors.lastname: Beiersdorfer
authors.forename: J H
authors.initials: JH
authors.lastname: Scofield
authors.forename: A L
authors.initials: AL
authors.lastname: Osterheld