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Three novel designs of W-band TWTs have been developed at the Plasma Science and Fusion Center at MIT. These designs incorporate high-order mode operation, and photonic band gap lattices to provide large diameter beam tunnels, compared to traditional designs. The first successful overmoded TWT was already built and tested, and a second design is underway.
Knowledge of the magnetic field distribution in a z-pinch plasma is of high importance since the plasma-field interaction plays a key role in determining the characteristics of the stagnation process and the efficiency of the magnetic-energy coupling to the plasma. However, plasma conditions that are typical of high-energy-density systems often render the common Zeeman-splitting magnetic field diagnostic...
Knowledge of the time dependent magnetic field spatial distribution in imploding plasmas (such as a Z-pinch plasma) is of high importance, due to the key role of the magnetic field in determining the characteristics of the imploding and stagnating plasma. Theoretical models of Z pinch plasmas strongly rely on the magnetic field distribution for the predictions of the hydrodynamic and atomic processes,...
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