Samuel Cohen

TL;DR: In this paper, experimental results from high-power neutral-beam-injection experiments on the Princeton Large Torus tokamak are reported, showing that ion temperatures of 6.5 keV are achieved at the highest beam powers and lowest plasma densities.

TL;DR: The development of non-inductive current drive is of great importance in establishing the tokamak as a long-pulse or steady-state fusion reactor as discussed by the authors, and lower hybrid waves, carrying 200 kW of power at 800 MHz, have been launched into the Princeton Large Torus tokak to initiate and drive the discharge current to a level in excess of 100 kA.

TL;DR: This Letter reports photoionization microscopy experiments where this nodal structure of the Stark Hamiltonian is directly observed, providing a validation of theoretical predictions that have been made over the last three decades.

TL;DR: In this article, short bursts of aluminum were injected into the Adiabatic Toroidal Compressor (ATC) Tokamak, and measured the time evolution of the radial distributions of highly ionized states of aluminum.

TL;DR: In this paper, the results obtained with the Z-expansion method are in excellent agreement with the observed spectral data except for minor discrepancies between the theoretical and experimental wavelengths of 0.0003 A for the n = 2 satellites and of 0.0001 A for separation of the Ly..cap alpha-sub-1/ and Ly ¼ sub-2/ lines.