Figure 2
Scheme for measuring the angular distribution of the radiation. A strip or wire target is fixed parallel to the magnetic field of the storage ring. A plastic scintillator (PS) is mounted in the vacuum chamber, while the flange axis coincides with the radiation axis. The PS is rotated around that axis in 22.5° steps, and also moved radially away from the axis, up to 36 mm, with a step of 4 mm. |