Figure 4
Difference of calculated maximum crystal temperatures using the surface heat model and the volume heat model. While such a difference is negligible for the helical undulators, and minor for planar undulators with first harmonic at 8.0 keV, the temperatures are profoundly different between the two models for the planar undulator at 3.6 keV. Also shown in the non-linear region where MLPD is greater than 100 W mm−1, the result is much more sensitive to the heat load model used. |