resistive modes in cdx-u j. breslau, w. park. s. jardin, r. kaita – pppl d. schnack, s. kruger...
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DESCRIPTION
Characteristics of the Current Drive Experiment Upgrade (CDX-U) Low aspect ratio tokamak (R 0 /a = 1.4 – 1.5) Small (R 0 = 33.5 cm) Elongation ~ 1.6 B T ~ 2300 gauss n e ~ 4 cm -3 T e ~ 100 eV I p ~ 70 kA Soft X-ray signals from typical discharges indicate two predominant types of low-n MHD activity: –sawteeth –“snakes”