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Excellent initiative. From the 1st reading, it does seem "within the realms of current technology". All the best.

I have a small question. Which CAD / 3D / Physics software is used for such design and simulations ?

Thank you! We're probably going to have to eventually use every engineering software in existence haha for CAD, mainly solidworks and CATIA, for EM Physics modeling: COMSOL. But most of the analysis is done with specialized plasma physics and radiation transport codes like MCNP or Open MC.

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