5 papers
Langmuir probe and infrared thermography measurements of wide and narrow heat flux profiles in the ST40 tokamak
T. Brewer, X. Zhang, C. Marsden +11
Very narrow heat flux profiles have been observed on ST40 with decay lengths in the near scrape-off-layer (SOL) of ~1~mm in H-mode plasmas. Measurements from divertor…
Single-fluid simulation of partially-ionized, non-ideal plasma facilitated by a tabulated equation of state
G. Su, S. T. Millmore, X. Zhang +1
We present a single-fluid approach for the simulation of partially-ionized plasmas (PIPs) which is designed to capture the non-ideal effects introduced by neutrals while remaining…
Inferring the scrape-off layer heat flux width in a divertor with a low degree of axisymmetry
C. Marsden, X. Zhang, M. Moscheni +7
Plasma facing components (PFCs) in the next generation of tokamak devices will operate in challenging environments, with heat loads predicted to exceed 10 MWm. The magnitude…
Experimental observations of bifurcated power decay lengths in the near Scrape-Off Layer of tokamak plasmas
X Zhang, C Marsden, M Moscheni +14
The scrape-off layer parallel heat flux decay lengths measured at ST40, a high field, low aspect ratio spherical tokamak, have been observed to bifurcate into two groups. The wide…
Application of the Scrape-Off-Layer Fast Ion (SOLFI) code to assess particle motion in mirrors and tokamaks
X. Zhang, N. A. Lopez, A. O. Nelson +2
This paper introduces the Scrape-Off-Layer Fast Ion (SOLFI) code, which is a new and versatile full-orbit Monte Carlo particle tracer developed to follow fast ion orbits inside and…