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Advanced UVOIR Mirror Technology Development for Very Large Space Telescopes

by Nasa Technical Reports Server (Ntrs) , Philip H. Stahl
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Current price ₹1,432.00
Original price ₹1,544.00
Original price ₹1,544.00
Original price ₹1,544.00
(-7%)
₹1,432.00
Current price ₹1,432.00

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Book cover type: Paperback
  • ISBN13: 9781289011116
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Bibliogov
  • Publisher Imprint: Bibliogov
  • Publication Date:
  • Pages: 34
  • Original Price: USD 15.75
  • Language: English
  • Edition: N/A
  • Item Weight: 82 grams
  • BISAC Subject(s): General


Objective of this work is to define and initiate a long-term program to mature six inter-linked critical technologies for future UVOIR space telescope mirrors to TRL6 by 2018 so that a viable flight mission can be proposed to the 2020 Decadal Review. (1) Large-Aperture, Low Areal Density, High Stiffness Mirrors: 4 to 8 m monolithic & 8 to 16 m segmented primary mirrors require larger, thicker, stiffer substrates. (2) Support System: Large-aperture mirrors require large support systems to ensure that they survive launch and deploy on orbit in a stress-free and undistorted shape. (3) Mid/High Spatial Frequency Figure Error: A very smooth mirror is critical for producing a high-quality point spread function (PSF) for high-contrast imaging. (4) Segment Edges: Edges impact PSF for high-contrast imaging applications, contributes to stray light noise, and affects the total collecting aperture. (5) Segment-to-Segment Gap Phasing: Segment phasing is critical for producing a high-quality temporally stable PSF. (6) Integrated Model Validation: On-orbit performance is determined by mechanical and thermal stability. Future systems require validated performance models. We are pursuing multiple design paths give the science community the option to enable either a future monolithic or segmented space telescope.

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