Journals

Showing 1 - 3 of 3 Journals Results
2020
UKAEA-CCFE-PR(20)139
"Type I ELM power loads on the closed outer divertor targets in the HL2A tokamak"

J.M. Gao L.Z. Cai X.L. Zou T. Eich C.Z Cao L.W. Yan W.L. Zhong A.J. Thornton J.Adamek X.Q. Ji M. Jiang L. Liu J. Lu G.L. Xiao Z.H. Huang N. Wu

The HL-2A tokamak has a very closed divertor geometry, and a new infrared camera has been installed for high resolution studies of edge-localized mode (ELM) heat load onto the outer divertor targets. The characteristics of power deposition patterns on the lower outer divertor target plates during ELMs are systematically analyzed with the infrared t…

Preprint
2020
UKAEA-CCFE-PR(19)02
"Tomographic reconstruction of tokamak edge turbulence from single 1 visible camera data and automatic turbulence stucture tracking"

Jordan Cavalier Nicolas Lemoine Frederic Brochard Vladimir Weinzettl Jakub Seidl Scott Silburn Patrick Tamain Renaud Dejarnac Jiri Adamek Radomir Panek

Following the lead of [Nguyen Van Yen Nucl. Fus. 52 (2012) 013005 (11pp)], this article tackles the problem of tomographic inversion with one camera assuming a constant emissivity of light along the magnetic field lines. In this way, the 3D problem reduces to 2D by helical symmetry, allowing for the reconstruction of any poloidal plane in the …

Preprint Published
2015
CCFE-PR(15)125
"Profile measurements in the plasma edge of mega amp spherical tokamak using a ball pen probe"

N.R. Walkden J. Adamek S. Allan B. D. Dudson S. Elmore G. Fishpool J. Harrison A. Kirk M. Komm

The ball pen probe (BPP) technique is used successfully to make profile measurements of plasma potential, electron temperature, and radial electric field on the Mega Amp Spherical Tokamak. The potential profile measured by the BPP is shown to significantly differ from the floating potential both in polarity and profile shape. By combining the BPP p…

Preprint Published