Note: Electrostatic detection of stainless steel dust particles for fusion applications

P Landy; C H Skinner; H Schneider

doi:10.1063/1.4869344

Note: Electrostatic detection of stainless steel dust particles for fusion applications

Rev Sci Instrum. 2014 Mar;85(3):036110. doi: 10.1063/1.4869344.

Authors

P Landy¹, C H Skinner², H Schneider²

Affiliations

¹ Mechanical and Aerospace Engineering Department, Cornell University, Ithaca, New York 14853, USA.
² Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.

PMID: 24689638
DOI: 10.1063/1.4869344

Abstract

Dust accumulation inside next-step fusion devices poses a significant safety concern and dust diagnostics will be needed to assure safe operations. An electrostatic dust detection device has been successfully demonstrated in the National Spherical Torus Experiment, Tore Supra, and the Large Helical Device, and the detector's response to carbon particles was previously characterized in laboratory experiments. This paper presents laboratory results showing that detection of stainless steel particles at levels as low as several μg/cm(2) is also possible.