Title :
BET surface area measurements of materials for fusion safety studies
Author :
Smolik, G.R. ; Anderl, R.A. ; Pawelko, R.J. ; Carmack, W.J. ; Hembree, P.B. ; Oates, M.A.
Author_Institution :
Idaho Nat. Eng. & Environ. Lab., Idaho Falls, ID, USA
Abstract :
The reaction of air or steam with plasma facing materials and tokamak dust is a concern during an accident involving a breach in the vacuum plasma chamber of a fusion reactor. Hydrogen generated from steam reactions must be maintained below explosive concentrations. An important parameter influencing reaction rates is the specific surface area (SSA) of a material. We present the capabilities and background that we have obtained using the BET gas adsorption method on various fusion relevant materials. BET data are useful in developing correlations with steam reaction rates and characterizing irradiated beryllium and dust collected from tokamaks
Keywords :
accidents; adsorption; area measurement; fusion reactor safety; BET gas adsorption method; BET method; Be; H; H2O; dust; fusion reactor; materials; plasma facing materials; reaction rates; safety; specific surface area; steam reaction rate; tokamak; Air accidents; Area measurement; Dusty plasma; Fusion power generation; Fusion reactors; Hydrogen; Plasma materials processing; Plasma measurements; Safety; Tokamaks;
Conference_Titel :
Fusion Engineering, 1997. 17th IEEE/NPSS Symposium
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4226-7
DOI :
10.1109/FUSION.1997.687016
