Figure 11
Normalized spectral flux density calculated at the third harmonic, at x = 480 µm from the radiator axis, emitted by on-energy electrons (non-sliced; black curve), off-energy electrons (sliced; red curve), and by off-energy electrons in the presence of a 100 m−1 undulator magnetic field gradient. The adoption of a TGU as a radiator fully de-couples the spectral component of radiation emitted by sliced and non-sliced electrons. |