376 / | HD | INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS |
277 | DF | REACTOR PROTECTION OR DAMAGE PREVENTION {14} |
287 | DF | .~ Shield or barrier between radiation or heat source and object to be protected (e.g., insulation, thermal shield) {4} |
289 | .~.~ Thermal insulation {2} | |
290 | DF | .~.~.~> For liquid metal cooled fast reactors (e.g., insulation for vault roof, or for the vessel walls as by a layer of stagnant or quasi-stagnant coolant) |
291 | DF | .~.~.~> Concentric tubes or conduits with insulation |