The James Webb Space Telescope mission status

McElwain, Michael W.; Feinberg, Lee; Kimble, Randy A.; Bowers, Charles W.; Knight, J. Scott; Atkinson, Charles M.; Perrin, Marshall D.; Rigby, J. Keith; Smith, Erin; Stark, Christopher C.; Neff, Susan G.; Gardner, Jonathan P. A.; Mather, John C.

doi:10.1117/12.2630478

Cited by 4 publications

(2 citation statements)

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“…One reason for the Webb Space Telescope’s on-orbit performance 39 is the success of the NGST Mirror Technology Development Program. The Webb mirror material selection process and technology development program is a model for future NASA missions.…”

Section: Conclusion and Lessons Learnedmentioning

confidence: 99%

Webb Space Telescope primary mirror development: summary and lessons learned

Stahl

2024

J. Astron. Telesc. Instrum. Syst.

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The primary mirror is central to the success of the Webb Space Telescope and the product of 100s of engineers and technologists who invented technologies and processes for its manufacture and test. We summarize the Webb mirror technology development program, explain how the technology was demonstrated to be TRL-6 (including the importance of an Engineering Development Unit), and list some of the author's personal lessons learned.

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Section: Conclusion and Lessons Learnedmentioning

confidence: 99%

Webb Space Telescope primary mirror development: summary and lessons learned

Stahl

2024

J. Astron. Telesc. Instrum. Syst.

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“…Subsequently, the study of 5-meter folding primary mirror was carried out [6] . Recently, the primary mirror of the James Webb Space Telescope (JWST) is 6.6 meters in diameter [7] .…”

Section: Introductionmentioning

confidence: 99%

A method for measuring diffraction efficiency of Fresnel zone plates

Li,

Wen,

Liu

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Imaging Systems

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Fresnel zone plate (FZP) is the important imaging components of the diffraction image technology, which is regarded as an important development direction for light-weighted and large-diameter space-based telescopes. However, there are some problems need to be solved, such as band structure defects, multistage diffraction characteristics, and the wavefront aberrations. Then the diffraction efficiency of the FZP is greatly reduced, and the imaging quality of the thin film diffraction imaging system is sharply degraded. In this paper, the measurement system for diffraction efficiency of the FZP is designed and the diffraction efficiency of the FZP measurement experiment is carried out. The experimental results show that the diffraction efficiency of two-step FZP is 25.36%, and that of four-step FZP is 35.36%.

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