| 摘要 |
FIELD: mining.SUBSTANCE: summary consists in that logging device comprises acoustic logging probe with radioactive logging probe installed between its transducers, RL probe radiation source collimating window is by formed gap between fixed and moving along device axis parts of screen, movable part of screen is connected with mechanism of opening/closing of such window, open window opening position retainer and spring, wherein latter automatically closes collimating window at retainer power supply disconnection.EFFECT: reducing radiation dose of service personnel at logging, as well as enabling operation with high-power radiation sources, which enable to increase speed of research by radioactive logging to acoustic logging speed.4 cl, 1 dwg |
