Hydroscaling implosions for high yield using HDC ablator

The goal of the Hydroscaling upwards¹ is to increase fusion yield well past the ignition threshold by increasing the scale of the capsule from outer radius of 1128.4 mm for the current highest yield implosion N210808 to about 1200 mm. The larger capsule is driven by a lower-loss Frustraum hohlraum configuration² with peak Tr > 300 eV and the capsule absorbed energy increases to above 300 kJ from 230 kJ of N210808. The foot of the Tr pulse is similar to that of N210808 and gives similar fuel adiabat of 3.2. Increased scale and absorbed energy increase the robustness (i.e. the Generalized Lawson Parameter GLP) of the implosion that delivers 1D yield of 17 MJ. 2D simulations including expected residual low-mode radiation asymmetries (modes 1, 2, and 4), surface and interface roughness, fill tube, and tent features give a yield > 5 MJ. Imposing a 40T seed magnetic field improves the performance noticeably by increasing the robustness, boosting the yield or reduce the required laser energy.