FisMat2017 - Submission - View

Abstract's title: Relaxation models for single helical reversed field pinch plasmas at low aspect ratio
Submitting author: Roberto Paccagnella
Affiliation: Consorzio RFX and CNR
Affiliation Address: Corso Stati Uniti 4 Padova
Country: Italy
Oral presentation/Poster (Author's request): Poster
Other authors and affiliations: Sadao Masamune (Department of Electronics, Kyoto Institute of Technology, Japan) Akio Sanpei (Department of Electronics, Kyoto Institute of Technology, Japan)

Recent studies about the scaling with aspect ratio (i.e. the ratio between the major and minor radius of the torus) of the dominant mode in Single Helical Reverse Field Pinch (RFP) plasmas  are reported. The  dominant toroidal mode number in the  helical states is interpreted as the result of a relaxation process  [1,2].

In this work, the  theoretical models are compared and validated  with the experimental results obtained in a  low aspect ratio device [3].


[1] R. Paccagnella, Nucl. Fus.  56 (2016) 046010.

[2] R. Paccagnella, Phys. of Plasmas 23(2016) 092512.

[3] S. Masamune et al 2007 J. Phys. Soc. Japan 76 123501.