From Event: SPIE Optical Engineering + Applications, 2016
This paper describes an integrated stray light model of each Science Instrument (SI) in the Integrated Science Instrument Module (ISIM) of the James Webb Space Telescope (JWST) and the Optical Telescope Element Simulator (OSIM), the light source used to characterize the performance of ISIM in cryogenic-vacuum tests at the Goddard Space Flight Center (GSFC). We present three cases where this stray light model was integral to solving questions that arose during the testing campaign – 1) ghosting and coherent diffraction from hardware surfaces in the Near Infrared Imager and Slitless Spectrograph (NIRISS) GR700XD grism mode, 2) ghost spots in the Near Infrared Camera (NIRCam) GRISM modes, and 3) scattering from knife edges of the NIRCam focal plane array masks.
Scott O. Rohrbach, Ryan G. Irvin, Lenward T. Seals, and Dennis L. Skelton, "Stray light modeling of the James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM)," Proc. SPIE 9947, Current Developments in Lens Design and Optical Engineering XVII, 99470K (Presented at SPIE Optical Engineering + Applications: September 01, 2016; Published: 28 September 2016); https://doi.org/10.1117/12.2238827.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 14,000 conference presentations, including many plenary and keynote presentations.