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While researchers keep working in the buildings next door, crews on a Tennessee campus are knocking down ten contaminated isotope labs one at a time in the late afternoon, after six years spent stripping out hot cells and four 2,000-pound krypton tanks, and all ten free up 12,000 square feet
13+ hour, 23+ min ago (807+ words) Sep 13, at 3:30pm ET Tearing a building down is usually the cheap part of a construction job. You hire a contractor, a machine shows up, and inside of a week a small lab is a pile of rubble and a few…...
A 12-panel concrete wall just went up around a reactor vessel in Tennessee, cut in four designs with stepped and wavy seams so radiation can't run straight out through the gaps, and robot arms overhead now connect the pipes with no one setting foot inside
3+ day, 11+ hour ago (323+ words) Sep 10, at 5:00pm ET In a parking garage, that seam is a caulking job. In a wall whose entire purpose is to stop radiation, it’s the first thing you have to solve, and it’s most of what a crew in Oak…...
While the only new reactors finished in the United States in three decades are AP1000s, the Chinese copy of that design got its 1,100-ton steel dome craned on 33 months after the construction license, with everything underneath it still to install
4+ day, 22+ hour ago (385+ words) Sep 9, at 6:30am ET That party hat weighs about 1,100 US tons, and it isn’t a roof. China National Nuclear Corporation announced on August 28 that the outer dome of the containment building at Xudabao 1 was in place, and World Nuclear News wrote…...
A 6-inch nickel can grew in a bath around a plastic mold, and acid dissolved the mold out from inside, leaving a container with no weld anywhere on it. Oak Ridge packed it with powder and squeezed out a 15.7-pound block of solid metal for a reactor
1+ week, 1+ day ago (652+ words) Sep 5, at 1:30pm ET Every metal 3D printing story you’ve read runs on the same basic recipe: a machine deposits material, layer by layer, until the part exists. We ran one of those a couple of weeks ago, about three robotic arms…...
A 1-megawatt reactor packed into a 20-foot container is going aboard a Gulf supply boat, five months after the same design went critical at Idaho and made no usable electricity at all, and no date or port has been named for it
1+ week, 6+ day ago (1045+ words) Nuclear power at sea has belonged to the Navy for most of a century. Submarines, carriers, a chain of command, and a fence around all of it. America did try the civilian version once, and the NS Savannah ended up…...
265 pounds of leased government uranium went critical under an Idaho shed, on a machine with no turbine, no cooling loop and no way to move heat out of its core, and it cleared its environmental review as a laboratory experiment
2+ week, 12+ hour ago (643+ words) Every reactor you have ever heard of exists to boil something. Water into steam, steam into a turbine, turbine into a wire that ends at somebody’s house. Ask a nuclear engineer what a reactor is for and you get some…...
A 1-megawatt reactor rode a flatbed out of a Los Angeles suburb, crossed more than 1,000 miles of interstate, and now has to go critical, reach full power and run 150 hours untouched inside an 80-foot concrete dome, and it has not gone critical once
2+ week, 1+ day ago (1157+ words) Radiant announced the departure on August 13. The machine is Kaleidos, a helium-cooled microreactor built in El Segundo, California, and its destination is the DOME test bed at Idaho National Laboratory, more than 1,000 miles away. World Nuclear News dated the send-off…...
A French startup has spent six years on a nuclear reactor with no turbine, no generator and no grid connection, a 131-foot box running helium at 1,382 degrees to sell steam to the sugar mill next door, and the mill has never agreed to buy any of it
2+ week, 5+ day ago (1268+ words) A French startup called Jimmy has been building one since 2020 that skips the entire back half of that sentence. No turbine. No generator. No grid connection. The machine sells heat, and nothing but heat, to the factory standing next to…...
A 3-by-5-foot American steel pressure vessel just got printed in Tennessee by three robotic arms laying molten wire at 100 pounds an hour — Oak Ridge and Idaho National Lab want 10,000-pound nuclear parts made without a forge
3+ week, 1+ day ago (1208+ words) American reactor construction has a steel problem that has nothing to do with reactors. The big pressure-retaining components come off forging presses, and the US mostly stopped having those. Oak Ridge National Laboratory puts it bluntly in its own materials:…...
A 22-inch Halliburton well is going sideways under a Texas cow pasture, triple the usual oil hole, so a 5,000-pound nuclear-waste canister can go down and come back up — no spent fuel on the pad, just the drill, a hole opener, and a warning about snakes
3+ week, 2+ day ago (1160+ words) Horizontal drilling is the reason the United States stopped worrying quite so much about importing oil. You sink a hole a mile or two straight down, bend the bit until it is running sideways, and push the well out through…...