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Assembly Overview

The °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization has overall responsibility for the successful integration and assembly of components delivered to the °ÄÃÅÁùºÏ²Ê¸ßÊÖ site by the seven °ÄÃÅÁùºÏ²Ê¸ßÊÖ Members. This includes the assembly of the °ÄÃÅÁùºÏ²Ê¸ßÊÖ Tokamak, with its estimated one million components, and the parallel installation and integration of plant systems such as radio frequency heating, fuel cycle, cryogenic, cooling water, vacuum, control, and high voltage electrical.

Hundreds of thousands of assembly tasks, organized into construction work packages, have been carefully planned and organized by °ÄÃÅÁùºÏ²Ê¸ßÊÖ engineers and schedulers. In its role as overall assembly integrator, the °ÄÃÅÁùºÏ²Ê¸ßÊÖ Organization is assisted by:

The construction platform has been divided into three distinct assembly zones: Worksite 1 (Tokamak Pit, Assembly Hall and Cleaning Building) focused on the assembly of the °ÄÃÅÁùºÏ²Ê¸ßÊÖ Tokamak; Worksite 2, focused on the Tokamak Complex plant systems directly connected to the machine; and Worksites 3-6 for balance of plant activities (all plant and auxiliary buildings). 

2020
start
machine assembly
2024
cryostat
closure
2025
First
Plasma
2026
full
magnet power
* 2016 Baseline schedule
This is the principal assembly phase of °ÄÃÅÁùºÏ²Ê¸ßÊÖ, designed to prepare the machine for the Start of Research Operation. In addition to assembling the core machine, which ends with the closure of the cryostat, systems such as the divertor, fuelling, heating, disruption mitigation and a first set of diagnostics will be installed.

During this phase, the superconducting coils are operated at nominal current levels and ramp rates, high quality vacuum is demonstrated and leak tests are run, and the systems needed for Start of Research Operations are commissioned.

Integrated Commissioning I

Assembly phase II

By the end of the assembly phase that will follow Start of Research Operations, the °ÄÃÅÁùºÏ²Ê¸ßÊÖ machine will have a fully cooled tungsten first wall and divertor, a full array of heating systems and a near-complete set of diagnostics, all in-vessel coils for stability and ELM control, and a first set of tritium test breeding modules.

The second integrated commissioning phase will prepare the °ÄÃÅÁùºÏ²Ê¸ßÊÖ machine for Deuterium-Tritium Operation. Systems to be commissioned include neutral beam injection, tritium plant systems, test blanket systems, and the control/safety/interlock systems required for fusion operation.

Integrated Commissioning II