2004/01/28 by Jingqiang Li, Joel H. Kastner, G. Prigozhin +4 · 1 citation
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #CCD and CMOS Imaging Sensors #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/421866
published as Astrophys.J. 610 (2004) 1204-1212 · 30 pages, 9 figures, submitted to ApJ
arxiv created 2004/01/28 · openalex publication_date 2004/07/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
We further investigate subpixel event repositioning (SER) algorithms in application to Chandra X-Ray Observatory ( Chandra ) CCD imaging. SER algorithms have been applied to backside-illuminated (BI) Advanced CCD Imaging Spectrometer (ACIS) devices and demonstrate spatial resolution improvements in Chandra ACIS observations. Here a new SER algorithm that is charge split-dependent is added to the SER family. We describe the application of SER algorithms to frontside-illuminated (FI) ACIS devices. The results of SER for FI CCDs are compared with those obtained from SER techniques applied to BI CCD event data. Both simulated data and Chandra ACIS observations of the Orion Nebular Cluster were used to test and evaluate the achievement of the various SER techniques.