IEC Fusion Reactor Mark 3

Mark 3 IEC Fusion Reactor Project

Welcome to the Mark 3 IEC fusion reactor research project. The Mark 3 reactor is the third design in a series of two previous reactors constructed over the IEC fusion concept. Unlike the previous two generations of prototypes, the Mark 3 is a fusion capable design utilizing the Deuterium-Deuterium fusion reaction for neutron production. The Mark 3 reactor was used as a senior thesis project for the research option at Georgia Tech and has been continuously upgraded since then for improved performance.

Featured pages:

Offsite links: Open Source Fusion Research Consortium.

Some improvements over existing IEC designs include:

  • Complete upgrades
    • Liquid cooled grid to reduce thermionic electron emission from the grid surface by maintaining low grid temperature.
    • Anode layer ion source to provide fuel ionization at low operating pressures and improve fusion output by increasing plasma density and temperature.
  • Upgrades in progress:
    • Laser interferometer to measure plasma density and temperature at the focal point.
    • Optimization of grid and insulator design.
    • Upgrade to 40-70kV operation.


Files, Presentations and Thesis

Thesis and presentations for the cooled grid aspect of the Mk3 IEC fusion reactor.

Stage 1 Files

Stage 2 Files



Initial Construction

Mark 3 reactor construction

Step by step construction pictures of the Mark 3 reactor are provided in addition to all CAD designs, CNC mill gcode, and parts lists.

This documents the original Mark 3 design used for experimenting and data collection documented in the Stage 1 files.



Modification of the Mark 3 design




3D Modeling

Autodesk Inventor models



Test runs(Upgraded System)

Reactor Test Runs

Tests of the upgraded system with neutron output measurements.


Test runs

Old Reactor Test Runs

Test tuns of the orininal system and tests of the first upgrades.




Paperwork submitter to the Office of Radiation Safety at Georgia Tech.








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