ECLAIRS: Soft Xray Camera ESXC and VHF System Concepts

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ECLAIRS Soft X-ray Camera (ESXC) and VHF
System Concepts
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ECLAIRS CEA/MIT-MKI Review, CambridgeAugust 31-
September 1, 2005

• Agenda for Day 1
• August 31 Review and Presentations
• 900 AM Introduction and Agenda G. Ricker
• 915 AM MIT-France Program April Julich Perez
• 930 AM ECLAIRS and Phase A Effort, Overview
  CEA
• 1000 AM ECLAIRS System and Interfaces, Overview
  CEA
• 1030 AM Break
• 1045 AM MIT ECLAIRS Contribution, Overview G
  .Ricker
• 1115 AM Lab Tour
• 1215 PM Lunch (Stata Center)
• 130 PM Scientific Issues, ECLAIRS Potential
  and HETE Experience and Results G. Ricker
• 200 PM E-SXC Design and Options J. Doty
• 230 PM E-SXC Mechanical and Thermal Design J.
  Villasenor
• 315 PM Break
• 330 PM CCID41 Architecture G. Prigozhin
• 345 PM Status Update and Performance of
  CCID-41 Sensors on Suzaku (Astro-E2) S. Kissel
• 415 PM Radiation Effects in Anticipated
  ECLAIRS Orbit G.Prigozhin

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ECLAIRS CEA/MIT-MKI Review, CambridgeAugust 31-
September 1, 2005

• Agenda for Day 2
• September 1 Presentations and Discussions
• 900 AM Agenda G. Ricker
• 915 AM ESXC-VHF Subsystem Interfaces J. Doty
• 945 AM GSE for CCID-41 Cameras S. Kissel
• 1000 AM HETE Operations Overview and "Lessons
  Learned" R.Vanderspek
• 1030 AM Break
• 1045 AM VHF Data Transmissions G. Crew
• 1115 AM Secondary Ground Station System J.
  Villasenor
• 1145 AM Singapore Primary Ground Station G.
  Crew
• 1200 PM Lunch
• 115 PM Launch and Orbital Issues CEA
• 145 PM ECLAIRS Phase A Support Activities and
  Coordination CEA
• 215 PM Break
• 230 PM Selected Issues and Discussions G.
  Ricker
• 430 PM Action Items and Conclusions G. Ricker
• 500 PM Adjourn

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Soft X-ray Camera (SXC) for ECLAIRS Why?

• Science Drivers for limited-function SXC
• Major Goal of ECLAIRs Discovery of high
  redshift GRBs
• CdTe Instrunment (HET) is likely to provide only
  10 error boxes
• Need a vernier to reduce CdTe error boxes to
  lt1
• Important for prompt ground-based IR searches for
  z gt 7 GRBs, since few large telescopes have IR
  imagers w. FOV gt 3 (Reason 1K x 1K HgCdTe
  arrays _at_ 0.2 arcsec/pixel)
• HETE and Swift results indicate at most 10 of
  ECLAIRS GRBs will be at high-z, or 10 per year
  for ECLAIRS. Since chance that a specific
  ground-based telescope can promptly observe a
  given burst is 10, would need 10 telescopes
  with Dgt3 meters to effectively search ECLAIRS/HET
  10 error box.
• Error boxes of 1 would assure that all high-z
  candidates are observed in IR.
• SXC can readily provide 1 error boxes
• Measure 1- 4 keV prompt emission in XRFs, XRRs,
  and GRBs

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Flight Heritage for an ECLAIRS SXC
(2005)
Missions in Study Phase NASA Con-X (2015)
DARPA XNAV
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MIT X-ray CCD Cameras Flight Experience

• ASCA SIS (1993-2000)
• First Photon-counting X-ray CCD ever flown
• Operated 8 years in orbit (satellite re-entry)
• Chandra ACIS (1999-)
• Principal focal plane detector on NASA Great
  Observatory
• 6 years successful operation
• HETE SXC (2000-)
• Provides 1 arcmin error boxes for GRBs
• 5 years successful operation thus far
• Pathfinder for ECLAIRS SXC
• Astro-E2 XIS (2005-)
• Launched in July planned for 8 year lifetime
• Fully checked out and operating successfully
• Flight Quality X-ray CCDs available for ECLAIRS