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Proceedings Article

Aberrations in square pore micro-channel optics used for x-ray lobster eye telescopes

[+] Author Affiliations
R. Willingale, J. F. Pearson, A. Martindale, C. H. Feldman, J. P. Osborne, P. T. O'Brien

Univ. of Leicester (United Kingdom)

R. Fairbend, E. Schyns, S. Petit

PHOTONIS France S.A.S. (France)

Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99051Y (July 18, 2016); doi:10.1117/12.2232946
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From Conference Volume 9905

  • Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
  • Jan-Willem A. den Herder; Tadayuki Takahashi; Marshall Bautz
  • Edinburgh, United Kingdom | June 26, 2016

abstract

We identify all the significant aberrations that limit the performance of square pore micro-channel plate optics (MPOs) used as an X-ray lobster eye. These include aberrations intrinsic to the geometry, intrinsic errors associated with the slumping process used to introduce a spherical form to the plates and imperfections associated with the plate manufacturing process. The aberrations are incorporated into a comprehensive software model of the X-ray response of the optics and the predicted imaging response is compared with the measured X-ray performance obtained from a breadboard lobster eye. The results reveal the manufacturing tolerances which limit the current performance of MPOs and enable us to identify particular intrinsic aberrations which will limit the ultimate performance we can expect from MPO-lobster eye telescopes. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

R. Willingale ; J. F. Pearson ; A. Martindale ; C. H. Feldman ; R. Fairbend, et al.
" Aberrations in square pore micro-channel optics used for x-ray lobster eye telescopes ", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99051Y (July 18, 2016); doi:10.1117/12.2232946; http://dx.doi.org/10.1117/12.2232946


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