Title :
Neutron shielding system for the DIII-D research facility
Author :
Anderson, P.M. ; Phelps, R.D. ; Venkatesh, M.C.
Author_Institution :
Gen. Atomics, San Diego, CA, USA
Abstract :
The research program for the DIII-D tokamak has been expanded to include experiments using deuterium plasmas and deuterium neutral beams. In the absence of additional shielding, the increased radiation levels associated with these experiments are calculated to exceed the DOE (US Department of Energy) guidelines of 20 mr/yr above background at the site boundary. To minimize overall exposure, a shielding system has been installed at the DIII-D facility to completely surround the machine pit area inside the building. The design and building modifications of the shielding system are presented. The roof systems, roof drive system, the shield walls and their installation, and the shielding doors are described
Keywords :
Tokamak devices; fusion reactor safety; fusion reactor theory and design; shielding; DIII-D tokamak; machine pit; neutral beams; roof drive system; roof systems; shield walls; shielding; Buildings; Concrete; Cranes; Deuterium; Neutrons; Personnel; Rails; Steel; Structural beams; Tokamaks;
Conference_Titel :
Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on
Conference_Location :
Knoxville, TN
DOI :
10.1109/FUSION.1989.102459
