Extended Data Fig. 3: Vacuum-ultraviolet spectroscopy setup.
From: Observation of the radiative decay of the 229Th nuclear clock isomer
The implantation beam (1), target wheel with large-bandgap crystals (2), entrance slit (3), parabolic collimation mirror (4), diffraction grating (5), parabolic camera mirror (6), detector slit (7) photomultiplier detector (8) and plasma VUV-photon source used for calibration (9) are shown. The setup includes additionally γ-radiation detectors placed close to the implantation position of the crystal.