1
Charles L Melcher, Ralph A Manente, Jeffrey S Schweitzer: Methods and apparatus for gamma-ray spectroscopy and like measurements. Schlumberger Technology Corporation, Brumbaugh Graves Donohue & Raymond, November 28, 1989: US04883956 (52 worldwide citation)

Improved borehold logging methods and apparatus for detecting and measuring photon and other radiation from earth formations. Such radiation may be, for example: natural; generated by a source and modified by interaction with formation constituents; produced during or immediately following interacti ...


2
Ralph A Manente, Frank Bruni, Charles L Melcher, Carl A Peterson, Jeffrey S Schweitzer: Method of growing lutetium oxyorthosilicate crystals. Schlumberger Technology Corporation, Brigitte L Jeffery, Leonard W Pojunas, Martin D Hyden, August 26, 1997: US05660627 (19 worldwide citation)

A method for producing lutetium oxyorthosilicate crystals includes maintaining the interface between a crystal and the melt from which it is pulled substantially flat as the crystal is grown. In a Czochralski growth method, the rate of rotation of the crystal and its diameter are typically controlla ...


3
Charles L Melcher, Jeffrey S Schweitzer, Ralph A Manente: Methods and apparatus for borehole gamma-ray spectroscopy and like measurements. Schlumberger Overseas, YE KAIDONG, August 26, 1987: CN86108715

Improved borehold logging methods and apparatus for detecting and measuring photon and other radiation from earth formations. Such radiation may be, for example: natural; generated by a source and modified by interaction with formation constituents; produced during or immediately following interacti ...