Xcimer’s system has three primary elements: (1) a 10+ MJ krypton-fluoride excimer laser driver; (2) a fusion fuel capsule containing deuterium-tritium (DT) hydrogen fuel, larger and more robust but using the same fusion physics as NIF’s capsules; and (3) a HYLIFE-III fusion chamber, which uses a flowing lithium salt to absorb fusion energy and protect the chamber walls from neutrons — minimizing maintenance and reducing waste.