NEUTRAL BEAM DIAGNOSTICS FOR ALCATOR C-MOD

A diagnostic neutral beam will be installed on Alcator C-Mod for measu rement of (n) over tilde(i), n(z), T-z, upsilon(theta), upsilon(phi), and j. The beam will be used primarily for the study of thermal transp ort, E(r) in H-mode discharges, and to provide critical profile and tu rbulence data for tests of theoretically based models of turbulence an d transport. The beam selected for this work was used on Texas Experim ental Tokamak and is rated at 50 kV and 6 A of extracted current in hy drogen. It can produce beams of deuterium or helium as well. It is cur rently being reconfigured for installation on C-Mod. Capabilities for the intended measurements are described using simulations based on mea sured C-Mod profiles. (C) 1997 American Institute of Physics.