ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA
A description is presented of a deep densimeter operating on the principle of recording of intensity of scattered gamma radiation from an internal source. The device is designed for use in a single borehole. Author
Trans. of Nauchno-Issledovatelskii Institut Osnovanii i Podzemnykh Sooruzhenii. Sbornik Trudy (USSR) n57 1967.