Observations of Interstellar Scintillations of Pulsar Signals at 2388 MHz

Abstract

The scintillation index and fading time have been measured at 2388 MHz. These measurements, together with low-frequency measurements, are interpreted in terms of the extended-medium theory of Uscinski. Typically we find a scale size of electron irregularities of 4 X 10 cm and an rms value of the electron density of 2 X 1(h . Failure to observe long-term variations suggests a second component of density fluctuations.