Tests of a HPGe gamma spectrometry equipment to be used in an airplane for surface monitoring

In view of searching for radioactive satellite fragments, from an airplane, an Entertec-Schlumberger germanium detector and a multichannel analyzer were mounted in a slow-flying plane. Co-60- and Ir-192 sources with strengths in the 100 mCi range were placed at ground. The plane cruised, at 100 knots speed, 100 and 200 m above the ground. The detection of fragments of these activities is shown to be feasible. 2 figs., 1 tab. (qui)