In Spring 2007, as a Nuclear Engineering senior thesis project, I designed and built a cyclotron capable of accelerating protons to 2.2 MeV.

In the above annotated figure, the numbered ports connect to the following subsystems: (1) RF system; (2) vacuum pump to maintain low pressure in the chamber; (3) filament leads for the ion source; (4) a hydrogen supply for the ion source; and (5) a target to collect the accelerated particles.

I gave a presentation on cyclotron design and construction at HAR2009. Check out the video of the presentation, and the slides.