Long wavelength scattered light halos in ACS CCDs

Marco Sirianni, Mark Clampin, George F. Hartig, Marc Rafal, Holland C. Ford, D. A. Golimowski, C. Tremonti, Garth Illingworth, Morley Blouke, Michael Lesser, Bill Burmester, Randy Kimble, Pam Sullivan, Carolyn Krebs, John Yagelowicz

Research output: Contribution to journalConference articlepeer-review

23 Scopus citations


During the ground calibration of the Space Telescope Imaging Spectrograph (STIS) large scattered light haloes were identified in images of point sources and long slit spectral images at long wavelengths (>750 nm). The long wavelength scattering was traced to the SITe 1024×1024 CCD and its header package, raising concerns for the performance of the Advanced Camera for Surveys (ACS) CCD detectors. ACS is a third generation axial instrument for the Hubble Space Telescope (HST) and will be installed during the 1999 Servicing Mission. Two of the ACS imaging channels employ SITe CCDs, so the ACS team have conducted a study of the long-wavelength scattering, in collaboration with SITe, to assess the impact to the ACS science program and develop a solution. In this paper we discuss our solution, its implementation on ACS CCDs, and describe the results of initial tests.

Original languageEnglish (US)
Pages (from-to)608-612
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1998
EventOptical Astronomical Instrumentation - Kona, HI, United States
Duration: Mar 26 1998Mar 26 1998


  • ACS
  • CCDs
  • Calibration
  • Filters
  • HST Advanced Camera for Surveys
  • Hubble Space Telescope

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Long wavelength scattered light halos in ACS CCDs'. Together they form a unique fingerprint.

Cite this