At Holtec International’s manufacturing facility in Camden, N.J., welders work to seal stainless steel canisters that will be used by an overseas customer to ship spent nuclear fuel. To ensure the canisters don’t leak, they undergo a series of three tests, including digital radiology to essentially X-ray the welding job, a dye check to discover leaks and a helium leak test because helium will pick up minuscule holes that water or air wouldn’t. The seven-year-old manufacturing facility produces components for existing nuclear energy facilities and is the future site for manufacturing small modular nuclear reactors (SMRs). Holtec has been working on its SMR design for a decade and plans to respond to a request for proposals from Dominion Energy, owner of Millstone Power Station in Waterford, Kelly Trice, president of Holtec International, said in an interview Sept. 23.
https://theday.com/news/7342/millstone-explores-possibility-of-smaller-scale-nuclear-reactors/