28 September 2016 Stray light modeling of the James Webb Space Telescope (JWST) Integrated Science Instrument Module (ISIM)
Author Affiliations +
Abstract
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.
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Scott O. Rohrbach, Ryan G. Irvin, Lenward T. Seals, 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 (28 September 2016); doi: 10.1117/12.2238827; https://doi.org/10.1117/12.2238827
PROCEEDINGS
12 PAGES + PRESENTATION

SHARE
RELATED CONTENT

Stray light design and analysis of the SNAP Telescope
Proceedings of SPIE (September 14 2007)
Stray light analysis of the Lyman FUSE fine error sensor
Proceedings of SPIE (November 11 1996)
Critical point facility for the IML 2 mission reduction...
Proceedings of SPIE (September 30 1994)
NIRCam integration and test
Proceedings of SPIE (August 25 2005)

Back to Top