A simple electron time-of-flight spectrometer for ultrafast vacuum ultraviolet photoelectron spectroscopy of liquid solutions. - Arrell, C. A.; Ojeda, J.; Sabbar, M.; Okell, W. A.; Witting, T.; Siegel, T.; Diveki, Z.; Hutchinson, S.; Gallmann, L.; Keller, U.; van Mourik, F.; Chapman, R. T.; et al. (Review of Scientific Instruments, 2014)