Figure 6
Theoretical energy spectrum in a 5 µm high beam at the focal position for 48 Be lenses, from a theoretical constant flux versus energy source (red), a measured undulator peak at the same energy (green) and the convolution of the two (blue). FWHM is about 0.4% and P/B about 40 for the IVT response alone, and 0.6% and 100 for the convolution. |