Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9793845 | Journal of Nuclear Materials | 2005 | 5 Pages |
Abstract
Recent experiments on DIII-D point to the importance of two factors in determining the rate at which deuterium particles can be pumped at the divertor target(s): (1) the divertor magnetic balance, i.e., the degree to which the divertor topology is single-null (SN) or double-null (DN), and (2) the direction of the of BÂ ÃÂ âB ion drift with respect to the X-point(s). Changes in divertor magnetic balance near the DN shape have a much stronger effect on the pumping rate at the inner divertor target(s) than on the pumping rate at the outer divertor target(s). The behavior in the particle pumping observed at the inner and outer divertor target(s) in the DN and near-DN shapes suggests a redistribution of particles that would be expected in the presence of BÂ ÃÂ âB and EÂ ÃÂ B ion particle drifts in the scrapeoff layer (SOL) and divertor(s).
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
T.W. Petrie, N.H. Brooks, M.E. Fenstermacher, C.M. Greenfield, M. Groth, A.W. Hyatt, A.W. Leonard, M.A. Mahdavi, G.D. Porter, M.E. Rensink, M.J. Schaffer, M.R. Wade, J.G. Watkins, N.S. Wolf, The DIII-D Team The DIII-D Team,