SciTech Connect

Title: SNAP telescope

SNAP telescope The SuperNova/Acceleration Probe (SNAP) mission will require a two-meter class telescope delivering diffraction limited images spanning a one degree field in the visible and near infrared wavelength regime. This requirement, equivalent to nearly one billion pixel resolution, places stringent demands on its optical system in terms of field flatness, image quality, and freedom from chromatic aberration. We discuss the advantages of annular-field three-mirror anastigmat (TMA) telescopes for applications such as SNAP, and describe the features of the specific optical configuration that we have baselined for the SNAP mission. We discuss the mechanical design and choice of materials for the telescope. Then we present detailed ray traces and diffraction calculations for our baseline optical design. We briefly discuss stray light and tolerance issues, and present a preliminary wavefront error budget for the SNAP Telescope. We conclude by describing some of tasks to be carried out during the upcoming SNAP research and development phase.
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Publication Date:
OSTI Identifier:892939
Report Number(s):LBNL--51190
R&D Project: PDSNAP; BnR: KA0401010; TRN: US200623%%639
DOE Contract Number:DE-AC02-05CH11231
Resource Type:Conference
Data Type:
Resource Relation:Conference: SPIE's Astronomical Telescopes andInstrumentation, Waikoloa, Hawaii, 22-28 August,2002
Research Org:Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org:USDOE Director, Office of Science. Office of High Energy andNuclear Physics. Division of High Energy Physics
Country of Publication:United States
Language:English
Subject: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHROMATIC ABERRATIONS; CONFIGURATION; DESIGN; DIFFRACTION; OPTICAL SYSTEMS; PROBES; RESOLUTION; TELESCOPES; TOLERANCE; WAVELENGTHS