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), Terry Gaetz (Chandra/ACIS), Kip Kuntz (Backgrounds), Lorenzo Natalucci (Backgrounds), Nick Durham (Chandra/ACIS)
- 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 (Miller)
- CTI Correction - Energy Dependence of CTI (Beardmore)
- Challenges in calibrating timing modes (Tsujimoto)
- Charge Injection?
- Provide structure for organizing/sharing information (this wiki)
- Discussion Topics at IACHEC 2011
- Tour of the CCD Working Group wiki page
- Timing modes
- XIS/ACIS performance evolution comparison study
- 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
- Matteo Guainazzi (for Prashin Jethwa), The EPIC simulator and and pile-up modeling
- Steve Sembay, The problem with pattern 31
- Catherine Grant, ACIS topics: QE evolution, ACIS/XIS comparison study, ACIS as its own radiation monitor
- Discussion Topics at IACHEC 2013
- Terry Gaetz, Update on the ACIS background
- Eric Miller, Update on the Suzaku background evolution
- Matteo Guainazzi, The energy scale in EPIC-pn Timing Mode exposures
- Claudio Pagani, CCD charge traps: properties and how to deal with them
- Discussion Topics at IACHEC 2014
- Backgrounds WG
- Terry Gaetz, Chandra ACIS background uniformity
- Kip Kuntz, Soft proton flares in XMM and Chandra
- Lorenzo Natalucci, The particle background of the X-IFU instrument onboard of ATHENA
- CCDs WG
- Nick Durham, Evaluating the ACIS temperature-dependent CTI correction
- Terry Gaetz, Chandra ACIS BI low-energy gain
- Steve Sembay, The evolution of deep traps in the MOS CCDs
- Norbert Schultz, Chandra HETG observations at high X-ray fluxes
- Backgrounds WG
- Discussion Topics at IACHEC 2015
- Nick Durham: Measurements from Chandra ECS
- Terry Gaetz: Updated analysis of Chandra ACIS background
- Terry Gaetz: Current status of Chandra ACIS low energy BI CCD gain calibration
- Matteo Guainazzi: Timing mode calibration with simultaneous Cyg X-3 observations: XMM
- Norbert Schultz: Timing mode calibration with simultaneous Cyg X-3 observations: Chandra
- Michael Smith: Quiescent Background and the EPIC-pn Energy Scale
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