Laser Induced Desorption System for Measuring First Wall Retention in STEP

l Tokamak for Energy Production (STEP) programme. STEP is the UK's flagship fusion energy programme, sponsored by the Department for Energy Security and Net Zero (DESNZ), and aims to design and construct the UK's first prototype fusion power plant capable of demonstrating net energy production, fuel

self-sufficiency and a viable route to plant maintenance. UKFE, a wholly owned subsidiary of the United Kingdom Atomic Energy Authority (UKAEA), is responsible for delivering the programme. A key challenge for future fusion power plants is