Mr. Stuart A. Baker Profile

Stuart A. Baker

Distinguished Engineer at NNSS-LAO

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 2 October 2023 Presentation + Paper

Optical relays for imaging scintillators

Robert Malone, Stuart Baker, Daniel Frayer, Todd Haines, Kevin Joyce, Morris Kaufman, Paul Manhart, Katherine Walters, Eloisa Zepeda-Alarcon

Proceedings Volume 12666, 126660A (2023) https://doi.org/10.1117/12.2681320

KEYWORDS: Scintillators, Cameras, Imaging systems, CCD cameras, Zoom lenses, X-rays, Radiography, Distortion, Modulation transfer functions, Design and modelling

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Proceedings Article | 1 August 2021 Presentation + Paper

Combining visible shadowgraph imaging with x-ray imaging for dynamic shock experiments

Robert Malone, Stuart Baker, James Blackwell, Daniel Clayton, Andrew Corredor, Morris Kaufman, David Phillips, Danny Sorenson, Katherine Walters, Eloisa Zepeda-Alarcon

Proceedings Volume 11816, 1181605 (2021) https://doi.org/10.1117/12.2596369

KEYWORDS: X-ray imaging, Imaging systems, Cameras, Relays, Lenses, Scintillators, Particles, X-ray optics, Kinematics

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Proceedings Article | 9 September 2019 Presentation + Paper

Geant4-based multiphysics simulation toolkit for analysis of radiation detector performance

Amber Guckes, J. Andrew Green, Duane Smalley, Matthew Martin, Stuart Baker

Proceedings Volume 11114, 1111411 (2019) https://doi.org/10.1117/12.2528907

KEYWORDS: Sensors, Scintillators, Gamma radiation, Reflectivity, Device simulation, Photon transport, Waveguides, Photodetectors, Sensor performance, Data modeling

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Proceedings Article | 9 September 2019 Paper

Digital time-resolved spot diagnostic

Logan Fegenbush, Matthew Martin, Zak Fitzpatrick, Santiago Olguin, Sheridan Smith, Jim Mirador, Stuart Baker, Brandon Baldonado, Darryl Droemer, Michael Berninger, Morris Kaufman, Duane Smalley, Jacob Zier

Proceedings Volume 11114, 111141M (2019) https://doi.org/10.1117/12.2528451

KEYWORDS: Sensors, Diagnostics, Streak cameras, X-rays, X-ray sources, Data acquisition, Interfaces

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Proceedings Article | 12 September 2016 Presentation + Paper

Flash radiography studies with microcolumnar CsI

Duane Smalley, Steve Lutz, Stuart Baker, Dane Morgan, Kristina Brown, Andrew Corredor, Jesus Castaneda, David Phillips, Andrew Smith

Proceedings Volume 9969, 996904 (2016) https://doi.org/10.1117/12.2238676

KEYWORDS: Radiography, X-ray sources, Scintillators, Photons, Imaging systems, Modulation transfer functions, Reflectivity, X-rays, Tungsten, Optical testing

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Proceedings Article | 12 September 2016 Presentation + Paper

MCNP estimate of ZLS lens sensitivity in an x-ray field

Stephen Mitchell, Stuart Baker, Russell Howe, Robert Malone

Proceedings Volume 9969, 996903 (2016) https://doi.org/10.1117/12.2235287

KEYWORDS: X-rays, Scintillators, Zoom lenses, Charge-coupled devices, Glasses, Photons, Signal to noise ratio, Silica, Visualization, Relays

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Proceedings Article | 27 August 2015 Paper

Detector blur associated with MeV radiographic imaging systems

Stuart Baker, Stephen Lutz, Duane Smalley, Kristina Brown, Jeremy Danielson, Todd Haines, Russell Howe, Stephen Mitchell, Dane Morgan, Larry Schultz

Proceedings Volume 9595, 959509 (2015) https://doi.org/10.1117/12.2191089

KEYWORDS: Sensors, X-ray sources, Point spread functions, Scintillators, X-rays, Data modeling, X-ray optics, Collimation, Imaging systems, Radio optics

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Proceedings Article | 27 August 2015 Paper

Evaluation of a gamma camera system for the RITS-6 accelerator using the self-magnetic pinch diode

Timothy Webb, Mark Kiefer, Raymond Gignac, Stuart Baker

Proceedings Volume 9595, 95950K (2015) https://doi.org/10.1117/12.2186628

KEYWORDS: Cameras, Diodes, Scintillators, X-rays, Imaging systems, Signal to noise ratio, X-ray imaging, Charge-coupled devices, Radiography, Sensors

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Proceedings Article | 5 September 2014 Paper

Scintillator efficiency study with MeV x-rays

Stuart Baker, Kristina Brown, Alden Curtis, Stephen Lutz, Russell Howe, Robert Malone, Stephen Mitchell, Jeremy Danielson, Todd Haines, Kris Kwiatkowski

Proceedings Volume 9213, 92130H (2014) https://doi.org/10.1117/12.2064028

KEYWORDS: Scintillators, X-rays, Cameras, Imaging systems, Absorption, Signal to noise ratio, Sensors, Radiography, Radio optics, X-ray imaging

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Proceedings Article | 10 September 2013 Paper

Alignment and testing of a telecentric zoom lens used for the Cygnus x-ray source

Robert Malone, Stuart Baker, Kristina Brown, Jesus Castaneda, Alden Curtis, Jeremy Danielson, Darryl Droemer, David Esquibel, Todd Haines, John Hollabaugh, Russell Howe, Joe Huerta, Morris Kaufman, Nickolas King, Stephen Lutz, Kevin McGillivray, Andrew Smith, Britany Stokes, Aric Tibbitts

Proceedings Volume 8844, 88440A (2013) https://doi.org/10.1117/12.2022768

KEYWORDS: Scintillators, Zoom lenses, X-rays, Pellicles, CCD cameras, X-ray sources, Computer programming, Cameras, Optical components, Glasses

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Proceedings Article | 24 October 2012 Paper

Design and assembly of a telecentric zoom lens for the Cygnus x-ray source

Robert Malone, Stuart Baker, Kristina Brown, Alden Curtis, David Esquibel, Daniel Frayer, Brent Frogget, Michael Furlanetto, James Garten, Todd Haines, Russell Howe, Joe Huerta, Morris Kaufman, Nickolas S. King, Stephen Lutz, Kevin McGillivray, Andrew Smith

Proceedings Volume 8488, 84880B (2012) https://doi.org/10.1117/12.929160

KEYWORDS: Zoom lenses, Scintillators, CCD cameras, Glasses, Pellicles, X-rays, X-ray sources, Tolerancing, Charge-coupled devices, Cameras

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Proceedings Article | 28 September 2011 Paper

E-beam electron mobility study on CZT and CsI

Stuart Baker, Wendi Dreesen, David Schwellenbach, Jason Young, Arnold Burger, Michael Groza, Larry Franks

Proceedings Volume 8142, 81421G (2011) https://doi.org/10.1117/12.895263

KEYWORDS: Scintillators, Sensors, X-rays, Signal detection, Electron beams, Performance modeling, Security technologies, Semiconductors, Control systems, Tungsten

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Proceedings Article | 14 September 2011 Paper

SSPM scintillator readout for gamma radiation detection

Stuart Baker, Christopher Stapels, J. Andrew Green, Ronald Guise, Jason Young, Larry Franks, Britany Stokes, Elizabeth Wendelberger

Proceedings Volume 8144, 81440O (2011) https://doi.org/10.1117/12.895195

KEYWORDS: Sensors, Scintillators, Signal detection, Gamma radiation, Photomultipliers, Quantum efficiency, CMOS sensors, Silicon, Photodetectors, Solid state electronics

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Proceedings Article | 1 August 2003 Paper

Imaging detector systems for soft x-ray and proton radiography

Nicholas King, Stuart Baker, Steven Jaramillo, Kris Kwiatkowski, Stephen Lutz, Gary Hogan, Vanner Holmes, Christopher Morris, Paul Nedrow, Peter Pazuchanics, John Rohrer, Dan Sorenson, Richard Thompson

Proceedings Volume 4948, (2003) https://doi.org/10.1117/12.516915

KEYWORDS: Imaging systems, Cameras, Fiber optics, X-rays, CCD cameras, Scintillators, X-ray imaging, Radiography, Diodes, Quantum efficiency

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Multi-pulse imaging systems have been developed for recording images from pulsed X-ray and proton radiographic sources. The number of successive images for x-ray radiography is limited to four being generated by 25 ns, pulsed sources in a close positioned geometry. The number of proton images are provided by the number of proton bursts (approximately 60 ns) delivered to the radiographic system. In both cases the radiation to light converter is a thin LSO crystal. The radiographic image formed is relayed by a direct, coherent bundle or lens coupling to a variety of electronic shuttered, cooled CCD cameras. The X-ray system is optimized for detecting bremmstrahlung, reflection geometry generated X-rays with end point energies below 300 keV. This has resulted in less than 200 μm thick LSO converters which are 25 x 25 mm². The converter is attached to a UV transmitting fiberoptic which in turn is directly coupled to a coherent bundle. The image is relayed to a 25 mm microchannel plate image intensifier attached to a 4 image framing camera. The framing camera image is recorded by a 1600 x 1600 pixel, cooled CCD camera. The current proton radiography imaging system for dynamic experiments is based on a system of seven individual high-resolution CCD cameras, each with its own optical relay and fast shuttering. The image of the radiographed object is formed on a 1.7 mm thick tiles of LSO scintillator. The rapid shuttering for each of the CCD's is accomplished via proximity-focussed planar diodes (PPD), which require application of 300-to-500 ns long, 12 kV pulses to the PPD from a dedicated HV pulser. The diodes are fiber-optically coupled to the front face of the CCD chips. For each time-frame a separate CCD assembly is required. The detection quantum efficiency (DQE) of the system is about 0.4. This is due to the lens coupling inefficiency, the necessary demagnification (typically between 5:1 and 3:1) in the system optics, and the planar-diode photo-cathode quantum efficiency (QE) (of approximately 15%). More recently, we have incorporated a series of 4 or 9 image framing cameras to provide an increased number of images. These have been coupled to cooled CCD cameras as readouts. A detailed description of the x-ray and proton radiographic imaging systems are discussed as well as observed limitations in performance. A number of improvements are also being developed which will be described.

Proceedings Article | 25 October 2002 Paper

Development and performance of Bechtel Nevada's nine-frame camera system

Stuart Baker, Melissa Griffith, Joshua Tybo

Proceedings Volume 4772, (2002) https://doi.org/10.1117/12.456720

KEYWORDS: Cameras, Imaging systems, CCD cameras, Image resolution, Modulation transfer functions, Charge-coupled devices, Distortion, Electronics, Interference (communication), Image quality

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Proceedings Article | 11 April 2001 Paper

ImageTool

Stuart Baker, Susan Gardner, Michael Rogers, F. Sanders, Thomas Tunnell

Proceedings Volume 4308, (2001) https://doi.org/10.1117/12.424997

KEYWORDS: Cameras, Imaging systems, Image processing, Image analysis, Modulation transfer functions, Calibration, Modulation, Image restoration, Systems modeling, Image intensifiers

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Proceedings Article | 3 November 2000 Paper

Evaluating intensified camera evaluations

Stuart Baker, Susan Gardner, Michael Rogers, F. Sanders

Proceedings Volume 4128, (2000) https://doi.org/10.1117/12.405870

KEYWORDS: Cameras, Imaging systems, Signal to noise ratio, Modulation transfer functions, Image processing, Image resolution, Calibration, Contrast transfer function, Modulation, Data processing

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Proceedings Article | 29 February 2000 Paper

Performance of image intensifiers in radiographic systems

Stuart Baker, Nicholas King, Wilfred Lewis, Stephen Lutz, Dane Morgan, Tim Schaefer, Mark Wilke

Proceedings Volume 3968, (2000) https://doi.org/10.1117/12.378879

KEYWORDS: Image intensifiers, Cameras, Image resolution, Microchannel plates, Imaging systems, Signal to noise ratio, Signal detection, Modulation, Interference (communication), Modulation transfer functions

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Proceedings Article | 19 October 1999 Paper

Large-format radiographic imaging

Stuart Baker, Wilfred Lewis, John Rohrer, Lacey Stewart, Nicholas King, Mark Wilke

Proceedings Volume 3768, (1999) https://doi.org/10.1117/12.366596

KEYWORDS: Imaging systems, CCD cameras, Microchannel plates, Fiber optics, Cameras, Scintillators, Diodes, Electro optics, Charge-coupled devices, Signal detection

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Proceedings Article | 1 October 1999 Paper

Using dynamic radiography to determine the volume of an imploding cylinder

Wilfred Lewis, Stuart Baker, Carl Ekdahl, Yu. Kurapatkin, Hank Oona, P. Rodriguez, Tim Schaefer, D. Turley, L. Vesser, A. Volkov

Proceedings Volume 3769, (1999) https://doi.org/10.1117/12.363671

KEYWORDS: Fiber optics, Scintillators, Streak cameras, Radiography, Dynamical systems, CCD cameras, Cameras, Imaging systems, Fiber optics tests, Tungsten

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Proceedings Article | 28 May 1997 Paper

Large-format imaging system

Stuart Baker, Lawrence Castellano, Paul Flores, Brent Frogget, Wilfred Lewis, Paul Nedrow, John Rohrer, Nicholas King

Proceedings Volume 2869, (1997) https://doi.org/10.1117/12.273383

KEYWORDS: Imaging systems, Microchannel plates, Charge-coupled devices, Cameras, Lens design, Control systems, CCD cameras, Zoom lenses, Image resolution, Fiber optics

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Proceedings Article | 18 September 1995 Paper

X-ray emission from colliding laser plasmas

Mark Wilke, Andrew Obst, Dan Winske, Michael Jones, Stuart Baker, Joseph Abdallah, Stephen Caldwell, Robert Watt, S. Robert Goldman, Bruno Bauer, Robert Gibson

Proceedings Volume 2523, (1995) https://doi.org/10.1117/12.220984

KEYWORDS: Plasmas, Ions, Gold, X-rays, Spectroscopy, Picosecond phenomena, X-ray imaging, Tellurium, Chromium, Diagnostics

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Showing 5 of 22 publications

Conference Committee Involvement (4)

Radiation Detectors in Medicine, Industry, and National Security XIX

22 August 2018 | San Diego, California, United States

Radiation Detectors in Medicine, Industry, and National Security XVIII

9 August 2017 | San Diego, California, United States

Radiation Detectors: Systems and Applications XVII

31 August 2016 | San Diego, California, United States

Radiation Detectors: Systems and Applications XVI

12 August 2015 | San Diego, California, United States

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