Large-area kapton X-ray windows

M. Antimonov, A. Khounsary*, S. Weigand, J. Rix, D. T. Keane, J. J. Grudzinski, A. Johnson, Z. Zhou, W. Jansma

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


Some X-ray instruments require the utilization of large-area windows to provide vacuum barriers. The necessary attributes of the window material include transparency to X-rays, low scattering, and possession of suitable mechanical properties for reliable long-term performance. Kapton is one such material except that it is a polymer and a large window made from Kapton with a pressure differential of one atmosphere across it can undergo substantial deformation at room temperature. In this paper, we report on the mechanical testing of Kapton samples including creep measurements, and comparison with published data. We use of these data together with analytical / numerical models to predict the changes in the profile of Kapton vacuum windows over time, and show good agreement with experimental measurements.

Original languageEnglish (US)
Title of host publicationAdvances in X-Ray/EUV Optics and Components X
EditorsAli M. Khounsary, Christian Morawe, Shunji Goto
ISBN (Electronic)9781628417548
StatePublished - 2015
EventAdvances in X-Ray/EUV Optics and Components X - San Diego, United States
Duration: Aug 11 2015Aug 12 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherAdvances in X-Ray/EUV Optics and Components X
Country/TerritoryUnited States
CitySan Diego


  • Analysis
  • Creep
  • Design
  • Kapton
  • Mechanical properties
  • Small /wide angle scattering
  • Vacuum
  • Window
  • X-ray

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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