  Attosecond angular streaking measurements have revealed deep insights into
the timing of tunnel ionization processes of atoms in intense laser fields. So
far experiments of this type have been performed only with a cold-target
recoil-ion momentum spectrometer (COLTRIMS). Here, we present a way to apply
attosecond angular streaking experiments to a velocity map imaging spectrometer
(VMIS) with few-cycle pulses at a repetition rate of 10 kHz and a high
ionization yield per pulse. Three-dimensional photoelectron momentum
distributions from strong-field ionization of helium with an elliptically
polarized, sub-10-fs pulse were retrieved by tomographic reconstruction from
the momentum space electron images and used for the analysis in the
polarization plane.
