DEVICE FOR RUNNING LITHOLOGIC-DENSITY GAMMA-RAY LOGGING

摘要

FIELD: nuclear geophysics.;SUBSTANCE: device has protective enclosure, gamma-ray quantum sources, gamma-ray radiation detectors, reference source, three probes, photo-electronic multipliers, program controlled amplifiers-discriminators, analog-to-digital conversion unit, central processor unit and tungsten protective screen. The screen has collimation windows.;EFFECT: improved operational capabilities.;1 dwg