Extended Data Fig. 1: Schematic of the experimental setup.
From: Observing the primary steps of ion solvation in helium droplets

The key elements described in Methods are shown including the formation of the He droplets by expansion of high-purity 4He gas, the two doping cells, the pump and probe laser pulses, the velocity map imaging spectrometer consisting of three electrodes (repeller, R; extractor, E; and ground, G), and the imaging detector backed by the TPX3CAM. The figure is for illustration purposes only and is not drawn to scale.