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Nucl. Fusion 59 (2019) 112009 H. Gota et al
Figure 4. Example of single-sided FRC translation: time sequence of the translated FRC’s diamagnetism (∂B) in the CV, where FRC is entering the CV at around 20 μs and bounced back-and-forth between mirror regions.
Figure 5. Two-dimensional resistive MHD simulation of FRC formation and translation in the single-sided C-2W configuration/setup, showing evolution of magnetic field lines and density contours in color at FRC formation (top), translating through inner divertor and entering the CV (middle), and fully travelled to the other end of CV (bottom).
the mirror field and become trapped inside the inner divertor, or be torn apart with partial translation into the CV [39].
3.3. Key initial results of collided/merged FRC plasmas (in operation phase 1)
C-2W experimental program has continued after com- pleting a majority of the machine construction that includes double-sided FRC formation sections, outer-divertor edge- biasing systems, NBI system, and other key subsystems. As
described earlier, our intent/objective in this operation phase 1 is to produce a decent, stable FRC target primarily for effec- tive NBI before ramping up internal plasma pressure by increasing/ramping NB input power (planned in operations phase 2). Double-sided FRC formation, translation, and col- lisional merging process in C-2W is essentially the same as previous C-2/2U experiments, with the new complication of translating through the inner divertor. As described in sec- tion 3.2, initial FRC plasma formation and translation through the inner divertor is no longer the issue/concern but finding
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