Figure 1
The OPIS instrument in the photon diagnostics section in the FLASH2 undulator tunnel. Four eTOF spectrometers are mounted in CF63 ports in the center of the basic CF160 tube of length 0.7 m. The spectrometers are aligned to the dipole plane perpendicular to the FLASH2 beam direction at an angle of 54.7° with respect to the horizontal radiation polarization vector. |