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Contamination Monitoring of RSRM Bonding Surfaces using OSEE
Courtesy of Photo Emission Tech., Inc. (PET)
BIOGRAPHY
Robert A. Mattes is presently investigator for Contamination Detection for Space Operations at Morton Thiokol, Inc., Brigham City, Utah. Mr. Mattes has been involved in instrumentation applications over the past nineteen years. He was involved in Spectrophotometric Analysis for Biological Research (1970 to 1972) at the University of California. He later received his B. S. degree in Applied Physics from the University of Utah while working in the Research and Development Department at National Semiconductor. From 1986 to 1987 Mr. Mattes worked as an electronics development engineer for Enduratek Corp. Murray Utah. He began his employment with Morton Thiokol in 1987.
ABSTRACT
Using Optically Simulated Electron Emission (OSEE) Morton Thiokol has demonstrated that contamination on Redesigned Solid Rocket Motor (RSRM) bonding surfaces can be monitored in the manufacturing environment. This technique, initially developed by NASA, provides manufacturing control and documentation of bonding surface cleanliness prior to bonding. A computer database containing contamination level and surface location information is generated during the monitoring process for engineering evaluation.
This paper will describe the OSEE systems implementation at Morton Thiokol since 1987. The surfaces and substrates monitored will be discussed as well as the automated and manual modes of scanning. Data correlation will be covered along with the variables affecting data reliability.
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