There wasn't much time left for the "He3" project team.
Everyone was racing against the clock.
Finally, due to everyone's constant effort, a rough prototype was completed.
The prototype consisted of two parts; one part was an "atomic gun" used to accelerate and emit helium atoms, and the other was a target material installed in the vacuum chamber for receiving helium-3 atoms. There were also various computers and sensor components.
As for why this was a rough prototype…
It was because almost all of the parts were pieced together.
The acceleration track path of the atomic gun was taken from an old particle accelerator from the Argonne National Laboratory. The vacuum chamber used to hold the plasma was designed by the PPPL when they were working on the stellarator.