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NASA NTRS · 20160006442

Analysis of Random Segment Errors on Coronagraph Performance

Stahl, Mark T.·Stahl, H. Philip·Shaklan, Stuart B.·N'Diaye, Mamadou
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Abstract

At 2015 SPIE O&P we presented "Preliminary Analysis of Random Segment Errors on Coronagraph Performance" Key Findings: Contrast Leakage for 4thorder Sinc2(X) coronagraph is 10X more sensitive to random segment piston than random tip/tilt, Fewer segments (i.e. 1 ring) or very many segments (> 16 rings) has less contrast leakage as a function of piston or tip/tilt than an aperture with 2 to 4 rings of segments. Revised Findings: Piston is only 2.5X more sensitive than Tip/Tilt

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Stahl, Mark T., Stahl, H. Philip, Shaklan, Stuart B., N'Diaye, Mamadou. 2016-05-09. Analysis of Random Segment Errors on Coronagraph Performance. https://ntrs.nasa.gov/citations/20160006442

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