LSST beam simulator

J. A. Tyson, J. Sasian, C. Claver, G. Muller, K. Gilmor, M. Klint

Research output: Contribution to journalArticlepeer-review


It is always important to test new imagers for a mosaic camera before device acceptance and constructing the mosaic. This is particularly true of the LSST CCDs due to the fast beam illumination: at long wavelengths there can be significant beam divergence (defocus) inside the silicon because of the long absorption length for photons near the band gap. Moreover, realistic sky scenes need to be projected onto the CCD focal plane Thus, we need to design and build an f/1.2 re-imaging system. The system must simulate the entire LSST1 operation, including a sky with galaxies and stars with approximately black-body spectra superimposed on a spatially diffuse night sky emission with its complex spectral features.

Original languageEnglish (US)
Article numberC07010
JournalJournal of Instrumentation
Issue number7
StatePublished - Jul 1 2014


  • APDs
  • CCDs
  • EBCCDs
  • EMCCDs etc)
  • G-APDs
  • Image processing
  • Photon detectors for UV
  • Si-PMTs
  • Solid state detectors
  • visible and IR photons (solid-state) (PIN diodes

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation


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