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Title: Magnetic field measurements via visible spectroscopy on the Z machine

Sandia's Z Machine uses its high current to magnetically implode targets relevant to inertial confinement fusion. Since target performance is highly dependent on the applied drive field, measuring magnetic field at the target is essential for accurate simulations. Recently, the magnetic field at the target was measured through splitting of the sodium 3s-3p doublet at 5890 and 5896 Å. Spectroscopic dopants were applied to the exterior of the target, and spectral lines were observed in absorption. Magnetic fields in excess of 200 T were measured, corresponding to drive currents of approximately 5 MA early in the pulse.
Authors:
; ; ; ; ; ;  [1] ;  [2]
  1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
  2. General Atomics, San Diego, California 92121 (United States)
Publication Date:
OSTI Identifier:
22308648
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABSORPTION; DOPED MATERIALS; ICF DEVICES; IMPLOSIONS; INERTIAL CONFINEMENT; MAGNETIC FIELDS; PERFORMANCE; PULSES; SODIUM; SPECTROSCOPY; VISIBLE SPECTRA