Use of Na-beta alumina crystals in a soft x-ray synchrotron beamline

Anthony J. Burek; Dale E. Graessle; Richard L. Blake

doi:10.1117/12.332530

11 December 1998 Use of Na-β alumina crystals in a soft x-ray synchrotron beamline

Anthony J. Burek, Dale E. Graessle, Richard L. Blake

Proceedings Volume 3448, Crystal and Multilayer Optics; (1998) https://doi.org/10.1117/12.332530
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

We report on the use of Na-(beta) alumina crystals in a synchrotron soft x-ray monochromator. With a grating spacing of 22.53 A, Na-(beta) alumina allows coverage of the .6 - 2 keV energy region not available to high resolution Si or Ge crystals. The crystal is shown to have an intrinsic energy resolving power E/(Delta) E of 800 - 1300 in first order with relatively high throughput. Second order (2d equals 11.26 A) is also strong, with a potential resolving power E/(Delta) E of 5000. The refractory nature of the crystal allows it to survive synchrotron heat loading without the damage experienced by organic long grating spacing crystals. The crystal is readily cleaved simplifying fabrication, alignment and mounting. Drawbacks include strong second order harmonics and strong anomalous dispersion effects from Na and Al.

Citation Download Citation

Anthony J. Burek, Dale E. Graessle, and Richard L. Blake "Use of Na-β alumina crystals in a soft x-ray synchrotron beamline", Proc. SPIE 3448, Crystal and Multilayer Optics, (11 December 1998); https://doi.org/10.1117/12.332530

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