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| Number | Title | Issue Date |
| 7276715 | Method and apparatus for safely handling radioactive sources A system for handling a radioactive source includes a container containing a radioactive source and a cap mounted on the container to retain the radioactive source inside the container. The cap has a first locking structure and a second locking structure. The system... | 10/02/2007 |
| 6831272 | Gas cluster ion beam size diagnostics and workpiece processing Methods and apparatus for measuring the distribution of cluster ion sizes in a gas cluster ion beam (GCIB) and for determining the mass distribution and mass flow of cluster ions in a GCIB processing system without necessitating the rejection of a portion of the bea... | 12/14/2004 |
| 6758607 | Optical communication module and optical communication module product A package contains therein a semiconductor laser element for emitting light and a semiconductor circuit element for driving the semiconductor laser element and is provided with an optical fiber supporting face and a back face. The optical fiber supporting face is pr... | 07/06/2004 |
| 6596998 | Method and system for identifying the source of a signal A method for determining which of a plurality of detectors transmitted a signal, such as a signal related to neutron or gamma emissions, includes connecting each of the detectors to a single cable, such as an environmentally rugged cable. Signals are tran... | 07/22/2003 |
| 5279366 | Method for wireline operation depth control in cased wells Wireline operation depth control in cased wells can be substantially improved by attaching a combined magnetic and radioactive marker to the casing in the vicinity of the zone of interest. A cased hole log is then performed, such as a perforation depth co... | 01/18/1994 |
| 4342911 | Focused nuclear interface survey instrument and method of determining density changes in mining and storage wells The instrument and method locate anomalies and the interface between two materials having little difference in their density in a mining or storage well. More particularly, the method comprehends the generation of gamma rays and the detection of scattered... | 08/03/1982 |
