3 February 2004 Performance of the UV/Optical Telescope (UVOT) on SWIFT
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Abstract
The Swift/UVOT is a 30-cm aperture imaging telescope that is sensitive to photons in the wavelength range 170nm-600nm and is designed to provide near-ultraviolet and optical measurements of γ-ray bursts and other targets that the Swift observatory observes. The performance of the telescope and its photon counting detectors has been assessed in a series of calibration measurements made under vacuum conditions in a test facility at the Goddard Space Flight Center. We describe some of the results of this campaign, including measurements of the instrument throughput, image quality and distortion, and linearity of response. We also describe the spectroscopic capability of the instrument, which is enabled by the use of two grisms operating in the UV and optical bands respectively. The results from the ground calibration activities will form the basis for establishing the full calibration matrix of the instrument once on orbit.
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Keith O. Mason, Alice Breeveld, Sally D. Hunsberger, Cynthia James, Tom E. Kennedy, Peter W. A. Roming, Joseph Stock, "Performance of the UV/Optical Telescope (UVOT) on SWIFT", Proc. SPIE 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, (3 February 2004); doi: 10.1117/12.503713; https://doi.org/10.1117/12.503713
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