This week, at the 26th High Temperature Plasma Diagnostics (HTPD) conference, researchers from Commonwealth Fusion Systems (CFS) are showing our newest work on diagnostics for SPARC, the machine we’re building right now to demonstrate net fusion energy and pave the way for fusion power on the electricity grid. The post Diagnostics: How to know your fusion machine is working — or what went wrong first appeared on The Tokamak Times .