Washington Meeting Addresses Professional Society Meeting Restrictions
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The symposium on XUV and x-ray optics for synchrotron radiation was primarily concerned with reviewing the state of the art in optical systems and techniques which were being considered for use with synchrotron radiation. Toward this goal, a number of excellent talks were given for both near- and long-term applications. The opening talks of the symposium covered the status of reflective optical systems. A variety of suggestions were made concerning novel optical systems which could be used with the new generation of high-power synchrotron sources, as well as on the importance of coherence on designs of advanced synchrotron radiation imaging systems. The subsequent talks were in the area of diffractive soft x-ray optics, in paticular, layered synthetic microstructures (LSMs) and transmission optics. It was generally agreed that the LSMs have reached a stage now where the surface finish of the substrate is the factor limiting performance, with the LSMs themselves reaching theoretical values. The session on transmission optics started with a discussion on the use of transmission gratings in spectroscopy. Then the topic shifted to zone plates and their use in x-ray microscopy, especially their use as lenses to focus soft xrays for a microprobe to study biological specimens. The session on hard x-ray optics encompassed a variety of systems for monochromating x-rays on high-resolution
REGISTER EARLY
1985 MRS Fall Meeting December 2-6, 1985 Boston, Massachusetts
20 technical symposia
• Over 10 displays of analytical and processing equipment
Look for registration information in the mail.
Symposium G Chairperson P. A. Pianetta. or high-power beam lines. This included techniques for cooling crystals that were being placed in very intense wiggler beams. X-ray topography was also reviewed. The different techniques available with synchrotron radiation were discussed, and a number of examples of topographic studies were given. Finally, the area of x-ray detectors was covered. The detectors that were discussed were not originally designed for synchrotron radiation applications, but it was clear that applications would be found in the not-too-distant future once the detectors had been fully developed. Symposium Support: Blake Industries and Microscience, Inc.
Washington Meeting Addresses Professional Society Meeting Restrictions Restrictions on the export of certain technical information which is in the public domain within the United States may impact technical societies both directly and indirectly—directly by the requirement that technical sessions be closed to non-citizens if they are to be run, and indirectly by inhibiting the planning of such information exchanges and the submission of research projects to such sessions. Such considerations were among the subjects discussed at a meeting held at the National Academy of Sciences in Washington, DC on April 5. The gathering was jointly sponsored by the National Academy of Sciences, the National Academy of Engineering, and the American Association for the Advancement of Sc
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