Answer by Patricia Eng P.E.
I am afraid that I do not have experience in making a nuclear fuser. I studied nuclear fusion in college, but at that time, it was only a theory. I Googled it and found a few sites that talk about building a demonstrator:
It looks possible, but difficult, possibly expensive and with a host of safety issues. I think you would need some help from adults to do it. I note that if it were easy, we would already have power plants that use it for energy. If you have your heart set on doing a project on fusion, you may want to do more on describing the process and highlighting the facilities around the world that are trying to create a sustainable fusion reaction.
There are a few other resources you might consider to see if there is another nuclear science based project that may be less difficult to build…….take a look at: http://www.nuclearmuseum.org/for-families/for-teachers/teacher-resources/
Sorry I couldn’t give you more on building a nuclear fuser. Good luck with your project!