Figure 7
CCD camera image of the PPD with P46 phosphors hit with a pulse energy of 7 µJ at 30.5 nm wavelength; (a) integration of 10 FEL shots (1 s of integration) on not coated PPD; (b) PPD after ∼10 s of exposure to the FEL beam; (c) integration of 10 FEL shots (1 s of integration) on PPD ITO coated; (d) PPD ITO coated after ∼10 s of exposure to the FEL beam. |