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Author(s):
Kenntner, J.; Grund, T.; Matthis, B.; Boerner, M.; Mohr, J.; Scherer, T.; Walter, M.; Willner, M.; Tapfer, A.; Bech, M.; Pfeiffer, F.; Zanette, I.; Weitkamp, T. 
Title:
Front- and backside structuring of gratings for phase contrast imaging with x-ray tubes 
Abstract:
Phase contrast imaging with conventional X-ray tubes as e.g. in computer tomography scanners (CTscanners) requires a setup of three different types of optical gratings. One grating is used to obtain a spatially coherent radiation, the second grating defines a periodic phase shift and the third is used as a periodic absorption grating. In order to absorb high energy radiation, absorption gratings with periods of a few microns only and extreme aspect ratios (> 80) are fabricated, employing a modif...    »
 
Journal title:
Proc. SPIE 
Year:
2010 
Journal volume:
7804 
Pages contribution:
780408-780408-10 
Fulltext / DOI: