Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pnaoc...5..192x&link_type=abstract
Astronomical Research and Technology. Publications of National Astronomical Observatories of China (ISSN 1672-7673), Vol. 5, No.
Astronomy and Astrophysics
Astronomy
Space Telescope, Ultra Light Mirror System, James Webb Space Telescope, Review
Scientific paper
A space telescope system is required to be light. The JWST (James Webb Space Telescope) which has recently been produced by NASA gets much smaller area density of primary mirror system than the HST (Hubble Space Telescope). JWST was formerly known as the NGST (Next Generation Space Telescope), and it is a basic goal in NASA to produce a larger space telescope than the HST with the same cost and mass. In order to design the lightest primary mirror system, NASA scheduled a series of programs such as NMSD (NGST Mirror System Demonstrator), SBMD (Small Beryllium Mirror Demonstrator) and AMSD (Advanced Mirror System Demonstrator). Many institutes competed for those programs, they all have good schemes for the ultra-light mirror system. In this article, several typical projects are introduced with respect to the design idea, structure, material, manufacture and test results.
Guo Wei-Yuan
Xu Jin-Xin
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