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The Crab pulsar is well-known for its anomalous giant radio pulse emission.Past studies have concentrated only on the very bright pulses or wereinsensitive to the faint end of the giant pulse luminosity distribution. Withour new instrumentation offering a large bandwidth and high time resolutioncombined with the narrow radio beam of the Westerbork Synthesis Radio Telescope(WSRT), we seek to probe the weak giant pulse emission regime. The WSRT wasused in a phased array mode, resolving a large fraction of the Crab nebula. Theresulting pulsar signal was recorded using the PuMa II pulsar backend and thencoherently dedispersed and searched for giant pulse emission. After carefulflux calibration, the data were analysed to study the giant pulse properties.The analysis includes the distributions of the measured pulse widths,intensities, energies, and scattering times. The weak giant pulses are shown toform a separate part of the intensity distribution. The large number of giantpulses detected were used to analyse scattering and scintillation in giantpulses. We report for the first time the detection of giant pulse emission atboth the main- and interpulse phases within a single rotation period. The rateof detection is consistent with the appearance of pulses at either pulse phaseas being independent. These pulse pairs were used to examine the scintillationtimescales within a single pulse period.

Giant pulses from the Crab pulsar: A wide-band study