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Published Data

These pages provide an access point to data contained in CCFE published journal papers.  By selecting a paper, and then a specific figure or table, you can request the related underlying data if it is available for release.

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Publication Figures

Publication Date:
0000-00-00

First Author:
David Moulton

Title:
Using SOLPS to confirm the importance of parallel area expansion in Super-X divertors

Paper Identifier:
CP/17/1

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Figure Reference Title Description Number of Figure Data Items Identifier Download Figure Details
Figure 1 Figure 1 Minimally complex, isolated divertor leg grid for the $f_R=1.6$ case. Other grids, outlined in grey, were created by rotation about the X-point, keeping poloidal flux expansion fixed at unity and the parallel connection length fixed at $L=20$ m. The boundary conditions for surfaces (1)-(5) are given in section ref{sec:BC}. The toroidally symmetric pumping surfaces used for the density ramps to detachment, described in section ref{sec:DETACH}, are shown in green. Colour version available online. 6 CF/17/2 Download
Figure 2 Figure 2 Simulated $n_t$ and $T_{et}$ as a function of $f_R$ for various simulation scans, as labelled. Values are plotted at the position of maximum target internal energy flux density. (a) and (b) show absolute values while (c) and (d) show the fractional changes relative to the $f_R=1$ case, with the modified two-point model scalings (ref{eq:NTSCALE}) and (ref{eq:TETSCALE}) shown for comparison (black lines). Colour version available online. 0 CF/17/3 Download
Figure 3 Figure 3 Fractional changes from $f_R=1$ to $f_R=2$ in the 2nd to 5th factors in equation (ref{eq:2PMFNT2}) (figure a) and equation (ref{eq:2PMFTET2}) (figure b), explaining discrepancies between the modified 2PM and the SOLPS simulations. See text for details. Colour version available online. 0 CF/17/4 Download
Figure 4 Figure 4 Comparison of equations (ref{eq:TCOND}) to the SOLPS-calculated upstream electron (a) and ion (b) temperatures for the high power $f_R$ scan. Cases where the target temperature is included and excluded are shown, as labelled. Arrows point in the direction of increasing $f_R$. Colour version available online. 0 CF/17/5 Download
Figure 5 Figure 5 Transition from the sheath-limited to conduction-limited regimes as a function of $n_u$, for $f_R=1$ and $f_R=2$. The interpolated values of $n_u$ at which $T_{et}=T_{eu}/3$ are also shown. Colour version available online. 0 CF/17/6 Download
Figure 6 Figure 6 Target plasma density (a) and target molecular density (b) as functions of the target electron temperature during upstream-density-driven detachment. Colours and marker are the same as figure ref{fig:ROLLOVERNU}. Colour version available online. 0 CF/17/7 Download

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    Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, Oxfordshire, OX14 3DB, UK. This work is funded by the UK Engineering and Physical Sciences Research Council (EPSRC) and EURATOM

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