Optics systems for the home laboratory: caveat emptor

Acta Crystallogr D Biol Crystallogr. 1999 Oct;55(Pt 10):1681-9. doi: 10.1107/s090744499900997x.

Abstract

A careful and detailed evaluation of different multilayer optics (Osmic Cross-coupled Max-Flux Optics and Osmic Confocal Max-Flux Optics) compared with MSC/Yale Total-Reflection Mirrors has been completed. This report provides a detailed comparison of usable flux, spectral purity, divergence, beam profile and data quality for these systems. The most striking results have been obtained using either the Osmic #4 or #7 Confocal Max-Flux Optic, which were designed for 0. l and 0.2 mm focal spots, respectively, in conjunction with a 0.3 mm focal spot. These optic configurations provide a 5.8-fold and 8.2-fold increase in flux through a 0.2 mm aperture, respectively, compared with the MSC/Yale Mirrors.

MeSH terms

  • Crystallography, X-Ray / instrumentation
  • Crystallography, X-Ray / methods*
  • Myoglobin / chemistry
  • Optics and Photonics*
  • Plant Proteins / chemistry
  • Proteins / chemistry*
  • Sweetening Agents*

Substances

  • Myoglobin
  • Plant Proteins
  • Proteins
  • Sweetening Agents
  • thaumatin protein, plant