Translator Disclaimer
31 August 2009 A stainless-steel mandrel for slumping glass x-ray mirrors
Author Affiliations +
We have fabricated a precision full-cylinder stainless-steel mandrel at NASA Marshall Space Flight Center. The mandrel is figured for a 30-cm-diameter primary (paraboloid) mirror of an 840-cm focal-length Wolter-1 telescope. We have developed this mandrel for experiments in slumping-thermal forming at about 600°C-of glass mirror segments at NASA Goddard Space Flight Center, in support of NASA's participation in the International X-ray Observatory (IXO). Precision turning of stainless-steel mandrels may offer a low-cost alternative to conventional figuring of fusedsilica or other glassy forming mandrels. We report on the fabrication, metrology, and performance of this first mandrel; then we discuss plans and goals for stainless-steel mandrel technology.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mikhail V. Gubarev, Stephen L. O'Dell, William D. Jones, Thomas J. Kester, Charles W. Griffith, William W. Zhang, Timo T. Saha, and Kai-Wing Chan "A stainless-steel mandrel for slumping glass x-ray mirrors", Proc. SPIE 7437, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IV, 74370Z (31 August 2009);

Back to Top