Synchrotron images from Zhou et al. (2014)

This example reproduces Figs. 5, 6 and 7 of [Zhou et al. 2014]. Many other figures of that paper can also be reproduced with slight modifications to these examples.

../_images/Zhou2014_6.png

Figure 6 from |zhou2014|_, simulated using SOFT2. This figure illustrates how the radiation spot varies with the magnetic field safety factor.

Tokamak and detector properties

[Zhou et al. 2014] use an analytical magnetic field with circular flux surfaces, which happens to also be implemented in SOFT. The parameters of the magnetic field are as follows:

Parameter Value
Magnetic field on-axis 2 T
Major radius 185 cm
Minor radius 45 cm
Toroidal field direction Counter-clockwise (CCW)

For the detector, the parameters used in [Zhou et al. 2014] are (note the directions of the axes in Fig. 4, which are different from how the corresponding axes are defined in SOFT)

Parameter Value
Position \(148\hat{x} + 185\hat{y}\,\text{cm}\)
Viewing direction \(\hat{y}\)

Configuration scripts

Since all synchrotron images of [Zhou et al. 2014] are generated in very similar setups, we can benefit from splitting the configuration into multiple files. To this end, we have divided the problem into three levels.

The first level configures everything that is the same in all figures and is represented by the file baseline in the top-level directory. Next, all subfigures of each figure share some characteristics which are configured in the files named FigXbase (with X replaced by the figure number). These files include the baseline file at the top of the script. Finally, each individual subfigure has its own configuration script. These configuration scripts include the corresponding FigXbase script at the top.

Note

Tip 1 — While giving the camera a spectral range corresponding to the visible range (for example between 380-750 nm, as was used in the experiments) is more physically accurate, it makes comparison between SOFT simulations and [Zhou et al. 2014] more difficult, since [Zhou et al. 2014] only consider the spot shape and not the distribution of radiation across the spot.

File Description
baseline Baseline configuration applied to all simulations.
Fig5/Fig5base Baseline for all subfigures of Fig. 5
Fig5/a Configuration of Fig. 5(a).
Fig5/b Configuration of Fig. 5(b).
Fig5/c Configuration of Fig. 5(c).
Fig5/d Configuration of Fig. 5(d).
Fig5/e Configuration of Fig. 5(e).
Fig5/f Configuration of Fig. 5(f).
Fig5/g Configuration of Fig. 5(g).
Fig5/h Configuration of Fig. 5(h).
Fig6/Fig6base Baseline for all subfigures of Fig. 5
Fig6/e Configuration of Fig. 6(e).
Fig6/f Configuration of Fig. 6(f).
Fig6/e Configuration of Fig. 6(g).
Fig6/h Configuration of Fig. 6(h).
Fig7/Fig7base Baseline for all subfigures of Fig. 7
Fig7/a Configuration of Fig. 7(a).
Fig7/b Configuration of Fig. 7(b).
Fig7/c Configuration of Fig. 7(c).
Fig7/d Configuration of Fig. 7(d).