Practical Application of HgI_2 Detectors to a Space-Flight Scanning Electron-Microscope

Creators: Bradley, J. G.; Conley, J. M.; Albee, A. L.; Iwanczyk, J. S.; Dabrowski, A. J.; Warburton, W. K.

Abstract

Mercuric iodide X-ray detectors have been undergoing tests in a prototype scanning electron microscope system being developed for unmanned space-flight. The detector program has met with considerable success, although not all goals have yet been met. This success has been the result of carefully addressing the issues of geometric configuration in the SEM, compact packaging that includes separate thermoelectric coolers for the detector and FET, X-ray transparent hermetic encapsulation and electrical contacts, and a clean vacuum environment.

Additional Information

©1989 Elsevier Science Publishers B.V. Received 26 May 1989. The contributions to this work by V. Taylor, B. Dancy and F. Riquelme are greatly appreciated. The research described in this paper was performed, in part, by the Jet Propulsion Laboratory, California Institute of Technology and the University of Southern California, and was jointly sponsored by the National Aeronautics and Space Administration and Caltech through the Caltech President's Fund.

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Resource type: Journal Article
Publisher: Elsevier
Published in: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 283(2), 348-351, ISSN: 0168-9002.