北京大学工学院学术报告5.23(报告人:Prof. Jerry Nelson)
发布时间: 2011-05-19 05:12:00
SEMINAR SERIES
北京大学工学院 
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力学与空天技术系
湍流与复杂系统国家重点实验室
题目：TMT- The next generation of Extremely Large Telescopes
报告人 Prof. Jerry Nelson
TMT Project Scientist
astronomy and astrophysics at the University of California
主持人：陈十一 院长
时 间：5月23日（周一）15:00-16:00
地 点：英杰交流中心第四会议室
报告内容摘要
We describe the design and capabilities of the thirty Meter Telescope (TMT), a ground based optical and infrared telescope. The telescope will be located on Mauna Kea, a 4000m mountain in Hawaii. The telescope primary is composed of 492 close-packed hexagonal mirror segments. The telescope will have a very capable dual-conjugate adaptive optics system (AO) that can deliver diffraction-limited images over most of the sky in the 1-2.5µm wavelength region. The AO system will use six Na laser beacons to measure the atmospheric turbulence and two deformable mirrors to correct the atmosphere. The telescope will have multiple science instruments, some based on adaptive optics, some seeing-limited. The TMT is an international partnership with members: Caltech, Canada, China, India, Japan, University of California, and possibly the NSF.
报告人简历
Jerry Nelson, professor of astronomy and astrophysics at the University of California, Santa Cruz, is internationally renowned as a developer of innovative designs for advanced telescopes. He played a central role in the design of the twin Keck Telescopes at the W. M. Keck Observatory in Hawaii, conceiving the revolutionary segmented design of the Kecks' 10-meter primary mirrors. As founding director of the Center for Adaptive Optics, a National Science Foundation science and technology center headquartered at UCSC, Nelson helped pioneer the use of adaptive optics for astronomy, enabling scientists to get sharp images from ground-based telescopes.
Nelson is project scientist for the Thirty-Meter Telescope (TMT), which is currently in the design phase. The TMT will be far more powerful than any existing telescope, its 30-meter primary mirror providing ten times the light-gathering capacity of each of the Kecks.
Nelson earned a B.S. in physics from the California Institute of Technology and a Ph.D. in elementary particle physics from the University of California in Berkeley. He has experience in experimental high-energy physics, observational astronomy, astronomical instrumentation, and telescope design, and extensive knowledge of optics, optical support systems, kinematic design, and structural engineering.
A member of the National Academy of Sciences, Nelson is the recipient of various awards, including the Norwegian Academy of Science and Letters’ 2010 Kavli Prize in Astrophysics, the André Lallemand Prize of the French Academy of Sciences and the American Astronomical Society's Dannie Heineman Prize for Astrophysics. He has authored numerous publications in physics, astronomy, instrumentation, and telescope design.
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