Accurate measurements of intrinsic scattering from window materials by use of a vacuum camera

Hiroyasu Masunaga, Kazuo Sakurai, Isamu Akiba, Kazuki Ito, Masaki Takata

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The intrinsic scattering from eight window materials commonly used at synchrotron facilities has been evaluated in the range 0.07 < q < 4 nm-1 by the use of a vacuum camera. Poly(oxydiphenylene- pyromellitimide) film, a polyimide film widely used as a window material for vacuum chambers, gave rise to two peaks at q = 0.8 and 4 nm-1. Poly(ether-ether-ketone) gave no Bragg peaks, although the background scattering was relatively high over the entire q range. When natural mica, synthetic mica, quartz glass, beryllium, silicon nitride and silicon carbide were compared, synthetic mica showed the lowest scattering in the range 0.6 < q < 5 nm-1, indicating that it is the most suitable window material for this q range.

Original languageEnglish
Pages (from-to)577-579
Number of pages3
JournalJournal of Applied Crystallography
Volume46
Issue number2
DOIs
Publication statusPublished - 2013 Apr
Externally publishedYes

Keywords

  • small-angle X-ray scattering
  • synchrotron radiation
  • vacuum cameras
  • window materials

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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