Deuterium Cryostat Plugs For Neutron Application
A structure was designed for NIST to hold a cryostat assembly. The structure, known as a cryostat plug, will serve as a support for the cryostat support as well as a radiation shield. The plug was built to house the new liquid deuterium cold neutron source that replaced the existing liquid hydrogen source and its plug assembly. The cryostat plug holds the deuterium cryostat inside the cold port of the NBSR reactor.
The structure has four rollers on the bottom to roll it in and out of the cold port in the reactor. It also has a roller on each side to ensure that it is properly aligned within the port.