h3. CCD Issues Working Group

* *Members (based on attendance at CCD WG at any IACHEC)*
Catherine Grant (chair, Chandra/ACIS), Andy Beardmore (Swift/XRT), Dick Edgar (Chandra/ACIS), Matteo Guainazzi (XMM/EPIC), Eric Miller (Suzaku/XIS), Paul Plucinsky (Chandra/ACIS), Steve Sembay (XMM/EPIC-MOS), Michael Smith (XMM/EPIC-pn), Mutsumi Sugizaki (MAXI/SSC), Masahiro Tsujimoto (Suzaku/XIS), Claudio Pagini (Swift/XRT), Kip Kuntz, Jon Gelbord (Swift/XRT), Norbert Schultz (Chandra/ACIS), Kenji Hamaguchi (Suzaku/XIS), Vinay Kashyap (Chandra), Jenny Posson-Brown (Chandra/ACIS), Diab Jerius (Chandra), Keith Arnaud (XSPEC)

* *Missions*
Chandra-ACIS, XMM EPIC-pn, XMM EPIC-MOS, Swift XRT, Suzaku XIS, MAXI SSC

* *Purpose (from April 2010 meeting)*
** Provide a forum for cross-mission discussion and comparison of CCD-specific modeling and calibration issues
** Produce documents (SPIE level) discussing these comparisons, pros/cons of each approach
** Produce a document (A&A level?) discussing lessons learned and best practices for CCD-based instruments

* *Short-term Goals (from April 2010 meeting)*
** Provide structure for organizing/sharing information (this wiki)
*** Library of links to key papers and memos, indexed by mission, topic (i.e. CTI monitoring, correction, etc.) (in progress, see below)
** Establish three sub-groups for detailed study of topics of special interest
*** [Residuals around the Si-K edge|Residuals around the Si-K edge] (Miller)
*** [CTI Correction - Energy Dependence of CTI|CTI correction - energy dependence of CTI] (Beardmore)
*** [Challenges in calibrating timing modes] (Tsujimoto)
*** Charge Injection?

* *Discussion Topics at IACHEC 2011*
** Tour of the CCD Working Group wiki page
** Timing modes
*** [Matteo Guainazzi, XMM EPIC-pn|^FastModes.pdf]
*** [Andy Beardmore, Swift XRT|^Swift_XRT_WT.pdf]
*** [Catherine Grant, Chandra ACIS|^Grant.ACISTimingModes.pdf]
** [XIS/ACIS performance evolution comparison study|^Grant.LeakyBuckets.pdf]
** Future Plans
*** Continue to populate the wiki
*** Address questions raised by timing modes discussion
*** ACIS/XIS performance evolution paper
*** IACHEC WG meetings are productive, keep this conversation going outside of physical meetings

* *Discussion Topics at IACHEC 2012*
** Andy Beardmore, [Swift XRT CCD22 Simulator MkII|^Beardmore_CCD22_MkII.pdf]
** Matteo Guainazzi (for Prashin Jethwa), [The EPIC simulator and and pile-up modeling|^jethwa.pdf]  
** Steve Sembay, [The problem with pattern 31|^sfs-p31-mos.pdf]
** Catherine Grant, [ACIS topics: QE evolution, ACIS/XIS comparison study, ACIS as its own radiation monitor|^Grant.ACISbits.pdf]

* *[CCD Reference Library]*


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h3. Attachments:
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