Figure 3
(a) Theoretical and (b) experimental spectral distribution profiles of the IVU in tapered mode as a function of the gap tapering with 0.4 mm interval at 30 m from the IVU. The theoretical calculation was carried out for an electron beam of 400 mA with 3.0 GeV. Horizontal and vertical electron beam sizes of 186.6 and 12.0 µm and horizontal and vertical electron beam divergences of 46.6 and 4.8 µrad are used. |