Design Blueprint: A Laser Inertial Fusion Power Plant: Indirect-Drive Target Gain, Chamber Clearing and Repetition-Rate Balance

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24159620): This paper presents a complete, computed design study of a fusion power plant based on a laser inertial confinement chamber: a chamber several metres across in which discrete targets are burned one at a time and the structure sees only the time-averaged flux. The fuel is deuterium tritium, releasing 17.6 MeV per reaction, of which 14.1 MeV leaves with the neutron and 3.5 MeV stays with the alpha particle. Heating is by frequency-tripled solid-state laser drivers arranged for indirect-drive illumination symmetry, and the blanket concept is flowing lithium-lead chamber wall protection with a dry-wall final optic shielded by gas. Sizing follows from a zero-dimensional energy balance evaluated in the accompanying computation: target gain 175, time-averaged fusion power 3360 MW, driver electrical demand 213.3 MW, gross electric output 1658 MW and net electric output 1313 MW. The minimum gain for electrical break-even at the stated driver efficiency is 22.61. Each shot releases 420 MJ of fusion energy from 2.4 MJ of driver energy delivered to the target, repeated at 8 Hz. The plant verdict on the stated assumptions is net positive. Where a quantity depends on an assumption that experiments have not yet demonstrated at the required value, that dependence is stated numerically so that the design can be re-scored as measurements improve. This study is simulated and computed from stated assumptions; it is not a measurement, and no part of the plant has been built. SIMULATED, NOT MEASURED. Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.