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Silicon Detector Studies with an Interferometric Thickness Mapper

Cosmic ray isotopic composition studies aboard satellites are normally based on energy detection measurements which require a precise knowledge of matter thickness particle penetration. A laser- interferometer system has been developed to precisely map the thick- ness variations of large-area silicon detectors. Design, operation, and the data processing to derive thickness maps is described.

Cosmic Rays Silicon Detectors Interferometry Satel↗