Duncan Wood
A5049406596- Nuclear Physics and Applications
- Stellar, planetary, and galactic studies
- Nuclear reactor physics and engineering
- Adaptive optics and wavefront sensing
- CCD and CMOS Imaging Sensors
- Nuclear Materials and Properties
- Astronomical Observations and Instrumentation
- Particle physics theoretical and experimental studies
- Remote Sensing in Agriculture
- Semiconductor Lasers and Optical Devices
- Black Holes and Theoretical Physics
- Advanced X-ray and CT Imaging
- Cosmology and Gravitation Theories
- Nuclear and radioactivity studies
- Photonic and Optical Devices
- Radiation Shielding Materials Analysis
- Advanced Optical Sensing Technologies
- Satellite Image Processing and Photogrammetry
- Nuclear Engineering Thermal-Hydraulics
- Calibration and Measurement Techniques
National Astronomical Observatory of Japan
2024
SLAC National Accelerator Laboratory
2024
University of California, Santa Cruz
2020-2024
A bstract There have been many attempts to construct de Sitter space-times in string theory. While arguably there some successes, this has proven challenging, leading the swampland conjecture: quantum theories of gravity do not admit stable or metastable space. Here we explain that, within controlled approximations, one lacks tools space Such approximations would require existence a set (arbitrarily) small parameters, subject severe constraints. But beyond also needs an understanding...
The LSST Camera for the Vera C. Rubin Observatory has been constructed at SLAC National Accelerator Laboratory. covers a 3.5-degree field of view with 3.2 gigapixels. goal survey is to provide well-understood astronomical source catalog community. Camera's focal plane populated by 189 sensors on science that are combination E2V CCD250 and ITL STA3800 deep-depletion, back-illuminated devices, accompanying eight guide sensors, four wavefront sensors. Nine grouped as "Raft" three identical...
Electro-optical testing and characterization of the Vera C. Rubin Observatory Legacy Survey Space Time (LSST) Camera focal plane, consisting 205 charge-coupled devices (CCDs) arranged into 21 stand-alone Raft Tower Modules (RTMs) 4 Corner (CRTMs), is currently being performed at SLAC National Accelerator Laboratory. Testing camera sensors using a set custom-built optical projectors, designed to illuminate full plane or specific regions with series light illumination patterns: crosstalk...
The Integration and Verification Testing characterization of the expected performance Large Synoptic Survey Telescope (LSST) Camera is described. LSST will be largest astronomical camera ever constructed, featuring a 3.2 Gpixel focal plane mosaic 189 CCDs. In this paper, we describe verification testing program developed in parallel with integration Camera, results from our Camera. Our includes electro-optical CCD height measurements plane, at several steps during integration, as well...