PRESENTATION TEMPLATE Joe Presenter Name of Company/University

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(No Transcript)
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Astrophysics BreakoutDon FigerRIT, RIDL
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Charge to Breakout Sessions

• Breakout groups will determine
• the most pressing questions in their area that
  leverage QLIDs
• the most important detector characteristics for
  answering these questions
• the specific technologies that are most promising
  for achieving these characteristics
• the hurdles for implementing these technologies
• the RD roadmap for overcoming these hurdles
• the funding opportunities for executing the RD
  roadmap
• The four areas are
• biomedical
• astrophysics
• Earth system science
• defense/homeland security
• Group leads will present findings in the final
  session of the workshop.

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Breakout Session Leads

• Biomedical Tim Tredwell
• AstrophysicsDon Figer
• Earth Systems ScienceJeff Puschell
• Defensee/Homeland SecurityMark Bocko

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The Top Five Science Drivers for Detectors
Astrophysics

1. What is dark energy? (QE, read noise, DC)
2. What is dark matter? (QE, read noise, DC)
3. What processes alter the surfaces of
   planets/moons? (thermal imaging, LIDAR, dynamic
   features with DFPA)
4. Do Earth-like planets exist?
5. Does extraterrestrial life exist? (O3, MIR)
6. When was the Universe enriched with metals?
7. How were galaxies assembled?

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The Top Detector Characteristics for Astrophysics

1. in-pixel wavelength discrimination
2. high QE across broad range
3. low dark current
4. zero read noise
5. time-tagging (for LIDAR)
6. larger formats (gt10K x 10K)?
7. lower power, higher temp. operation
8. lower cost operation (e.g. standardized ASIC,
   easier than SIDECAR)?
9. high dynamic range 1 - 1E7 photons
10. high speed capabilities, yet retain low noise

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Reference Chart Key Detector Characteristics
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Detector Performance Requirements for
Astrophysics
Parameter Current Goal
Format
Pixel Size
Read Noise
Dark Current
QE
Latent Image
Flux Rate Capacity
Operating Temperature
Fill Factor
Radiation Immunity
Susceptibility to Radiation Transients
Technology Readiness Level
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The Most Promising Detector Technologies for
Astrophysics

1. TES, SSPD wavelength detection
2. SSPD, GM-APD zero read noise
3. MCP single photon counting UV
4. GM-APD time-tagging
5. Digital solid state photomultiplier array (BiB,
   Rockwell Anaheim/Boeing)
6. DFPA

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Hurdles for the Most Promising Detector
Technologies for Astrophysics

• TES QE, temperature, format
• GM-APD afterpulsing
• SSPD cold operation
• TES extremely cold, not ideal wavelength
  coverage
• DFPA for low backgrounds??

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Detector RD Roadmap for Astrophysics

• GM-APD
• demonstrate 1 e-/s/pixel
• demonstrate 64x64 diode/ROIC array at 150 K
• design megapixel array and demonstrate at
  telescope
• SSPD (NbN)
• demonstrate an array with high QE
• TES
• demonstrate QE vs. lambda from UV to MIR
• find magic material that operates at higher T
• demonstrate low noise
• DFPA
• demonstrate low background capability
• demonstrate long integration time
• demonstrate low noise

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Funding Possibilities Astrophysics

1. NASA ROSES APRA, PIDDP
2. NSF ATI
3. Private
4. DARPA MTO BAA
5. Stimulus funding

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