Tokamak dust in ITER -- Safety issues and R and D supporting dust limits

Conference · Wed Jul 01 04:00:00 EDT 1998

OSTI ID:638228

McCarthy, K A; Petti, D A; Carmack, W J; Gorman, S V

Tokamak dust is an important contributor to the source term in ITER safety analyses. In this paper the authors present results of R and D at the INEEL to characterize tokamak dust, and which has been used to set safety limits on dust for ITER. They present the results of analysis of particulate collected from three operating tokamaks: DIII-D at General Atomics, TFTR at Princeton Plasma Physics Laboratory, and Alcator C-MOD at Massachusetts Institute of Technology, and analysis of particulate produced in SIRENS, a disruption simulator at North Carolina State University. Analyses done include characterization of particulate to produce particle size distributions, chemical analysis, and measurement of effective surface area. The safety limits on dust in ITER have evolved during the EDA as more data have become available. The safety limits specified in NSSR-2 envelope the majority of the data, and provide conservatism to account for the uncertainty in extrapolation of the data to ITER.

• Research Organization: Lockheed Martin Idaho Technologies Co., Idaho National Engineering and Environmental Lab., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC07-94ID13223
• OSTI ID: 638228
• Report Number(s): INEEL/CON--98-00595; CONF-980606--; ON: DE98056065
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHEMICAL COMPOSITION
DATA ANALYSIS
HAZARDOUS MATERIALS
ITER TOKAMAK
PARTICLE SIZE
PARTICULATES
PLASMA DISRUPTION
RADIOACTIVE AEROSOLS
SAFETY ANALYSIS
SURFACE AREA