Almost all of it was given back to the Treasury dept when they stopped using the Calutrons to make enriched uranium. Only 1/3,600,000th of the silver was not returned.
Oak Ridge is very different from other towns because it started as an Army base. There is no central downtown but they have a shopping center they call downtown. Most of it was no longer fenced off from outsiders starting in 1947. There are still sites there that are not open , mainly the Y-12 site.
My brother was trying to sell them some parts and they met him at a building outside the gate.
I saw that photo of the calutron operators in a history I’d read of the Manhattan project. It also mentioned how they outperformed the scientists and engineers who’d designed it and ironed out the kinks.
A roommate of mine worked on a very unusual project at Oak Ridge National Labs which does mostly standard research, not military research. They had to develop a plan to ship nerve gas from Kentucky to a plant on a small island in the Pacific ocean so it could be destroyed. Once the nerve gas was destroyed the plant was removed too.
They moved the nerve gas by truck at night to an airport and then it was flown to the island.
BTW this OP is part of why I visit this place. Thank you for posting. Every chemist has used mass spec for analysis, but the idea of * preparative* MS just boggles me.
as the article states 95% of the Oak Ridge people did not know what the project was for. Only knew it was for the war. They called it tubealloy rather than uranium.
Silver was used for wire in the core windings in the cyclotron, available copper was being used for shell casings. I recall that being discussed in Groves’ book.
Here isa link.