| タイトル | Coal-rock interface detector |
| 本文（外部サイト） | http://hdl.handle.net/2060/19790023535 |
| 著者（英） | Crouch, C. E.; Rose, S. D.; Jones, E. W. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1979-08-21 |
| 言語 | eng |
| 内容記述 | A coal-rock interface detector is presented which employs a radioactive source and radiation sensor. The source and sensor are separately and independently suspended and positioned against a mine surface of hydraulic pistons, which are biased from an air cushioned source of pressurized hydraulic fluid. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 79N31706 |
| 権利 | No Copyright |
