Figure 3
False color images of four unprocessed undulator radiation spectra [(a)–(d)] with corresponding electron spectra (correspondence indicated by white arrows). Respective values for the number of detected photons (after processing for toroidal mirror, grating and camera response), electron beam charge, and central energy are (a) 1.2 × 106, 0.9 pC and 92 MeV, (b) 7.7 × 106, 1.6 pC and 95 MeV, (c) 6.1 × 106, 2.0 pC and 108 MeV, and (d) 4.0 × 106, 1.3 pC and 122 MeV. From Anania et al. (2014). |