Session RP1 - Poster Session VIII.
POSTER session, Thursday afternoon, October 30
Fran Hill Southeast Exhibit Hall, ACC
The Compact Toroidal Hybrid (CTH) is under construction at Auburn University. CTH is a stellarator/tokamak hybrid device that will use an ohmic current of I_p\leq 50kA to investigate both ideal and resistive current-driven instabilities in low aspect ratio stellarators, and to carry out 3-D plasma equilibrium reconstruction tests. The edge vacuum rotational transform in CTH is variable from t_V(a) = 0.2 to 0.5 with a current-generated transform t_J(a) \leq 0.5. The average plasma major radius is R_o = .75m, the vacuum vessel minor radius is a_v = 0.29m and the maximum average plasma minor radius is a_p = 0.20m. CTH is a low \beta (\leq0.005) machine and will operate at magnetic fields B_o \leq 0.5T. Target plasmas for ohmic current stability studies will be generated by an 18GHz klystron operating at ømega=2ømega_ce. The CTH vacuum vessel has been cleaned, and outfitted with heater pads and magnetic diagnostics. The poloidal field coils have been wound and helical field coil winding will begin shortly after delivery of the helical coil frame. The CTH device is scheduled to be completed and operational in mid-2004. Supported by US DoE Grant DE-FG02-00ER54610