Measurement of the radiation field at the Collider Detector at Fermilab

We present direct measurements of the spatial distribution of both ionizing radiation and low energy neutrons (E/sub n/<200 keV) inside the tracking volume of the Collider Detector at Fermilab (CDF). Using data from multiple exposures we are able to separate the contributions from beam losses and proton-antiproton collisions. Initial measurements of leakage currents in the CDF silicon detectors show patterns consistent with predictions based on our measurements.