Dr. Robert A. Lewis Profile

Dr. Robert A. Lewis

Head of Imaging Detectors at Univ of Hull

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 20 April 2005 Paper

Progress in medical diffraction enhanced imaging at the UK Synchrotron Radiation Source

C. Hall, M. Ibison, K. C. Cheung, K. Siu, R. Lewis, A. Hufton, S. Wilkinson, K. Rogers, A. Round, B. Dobson, J. Flaherty, M. Rowley, A. Cook

Proceedings Volume 5745, (2005) https://doi.org/10.1117/12.596674

KEYWORDS: Crystals, X-rays, Laser crystals, Diffraction, Monochromators, Sensors, Medical imaging, X-ray imaging, Synchrotron radiation, Tissues

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Proceedings Article | 3 May 2002 Paper

Diffraction-enhanced imaging: improved contrast and lower dose x-ray imaging

Robert Lewis, Keith Rogers, Christopher Hall, Alan Hufton, S. Evans, Ralf-Hendrik Menk, Giuliana Tromba, Fulvia Arfelli, Luigi Rigon, Alessandro Olivo, Andrew Evans, Sarah Pinder, Elizabeth Jacobs, Ian Ellis, David Dance

Proceedings Volume 4682, (2002) https://doi.org/10.1117/12.465570

KEYWORDS: Refraction, Absorption, X-rays, Crystals, X-ray imaging, Tissues, Sensors, Reflectivity, Synchrotrons, Refractive index

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Proceedings Article | 28 June 2001 Paper

Breast cancer diagnosis using scattered x rays?

Robert Lewis, Keith Rogers, Christopher Hall, Andrew Evans, Sarah Pinder, Ian Ellis, Alan Hufton, Elizabeth Towns-Andrews, Susan Slawson, David Dance, Caroline Boggis

Proceedings Volume 4320, (2001) https://doi.org/10.1117/12.430877

KEYWORDS: Tissues, Breast, Collagen, X-rays, Diffraction, Breast cancer, Biopsy, Scattering, X-ray diffraction, Mammography

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Proceedings Article | 17 March 2000 Paper

Chiral liquid crystals for ferroelectric, electroclinic, and antiferroelectric displays and photonic devices

John Goodby, Kenneth Toyne, Michael Hird, Peter Styring, R. Lewis, Andreas Beer, C. Dong, M. Glendenning, John Jones, K. Lymer, Andrew Slaney, Victoria Minter, L. Chan

Proceedings Volume 3955, (2000) https://doi.org/10.1117/12.379967

KEYWORDS: Shape memory alloys, Liquids, Switching, Liquid crystals, Dielectrics, LCDs, Dielectric polarization, Fast packet switching, Polymers, Birefringence

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Proceedings Article | 6 October 1999 Paper

RAPID detector system: first user data

Robert Lewis, A. Berry, Christopher Hall, William Helsby, B. Parker

Proceedings Volume 3774, (1999) https://doi.org/10.1117/12.367115

KEYWORDS: Sensors, Diffraction, Spatial resolution, X-rays, Synchrotron radiation, Photon counting, Detection and tracking algorithms, Scattering, Polymers, Data acquisition

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Proceedings Article | 6 October 1999 Paper

Preliminary observations of breast tumor collagen using synchrotron radiation

Robert Lewis, Keith Rogers, Christopher Hall, Elizabeth Towns-Andrews, Susan Slawson, Andrew Evans, Sarah Pinder, Ian Ellis, Caroline Boggis, Alan Hufton, David Dance

Proceedings Volume 3770, (1999) https://doi.org/10.1117/12.368187

KEYWORDS: Tissues, Collagen, Diffraction, Breast, X-rays, Scattering, Breast cancer, X-ray diffraction, Synchrotron radiation, Cancer

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Proceedings Article | 11 July 1997 Paper

X-ray calibration of the SODART flight telescopes

Finn Christensen, Brent Madsen, Allan Hornstrup, Salim Abdali, Peter Frederiksen, Niels Westergaard, Josef Polny, Carl Budtz-Joergensen, Per Jonasson, Christopher Hall, Robert Lewis

Proceedings Volume 3113, (1997) https://doi.org/10.1117/12.278859

KEYWORDS: Telescopes, X-ray telescopes, Sensors, Mirrors, Point spread functions, Calibration, Space telescopes, X-rays, Synchrotrons, Ray tracing

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Proceedings Article | 11 July 1997 Paper

Synchrotron radiation facility for x-ray astronomy

Christopher Hall, Robert Lewis, Finn Christensen, George Fraser, D. Norman, Barry Kent, Alan Owens, Pietro Ubertini

Proceedings Volume 3113, (1997) https://doi.org/10.1117/12.278884

KEYWORDS: X-rays, Synchrotrons, Synchrotron radiation, Monochromators, Mirrors, Sensors, Silicon, Space telescopes, Telescopes, Diamond

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Proceedings Article | 18 October 1996 Paper

Simulation and response of the MART-LIME x-ray detector

Pietro Ubertini, Angela Bazzano, M. Brunetti, Massimo Cocchi, G. Gianni, Lorenzo Natalucci, F. Ortuno-Prados, Christopher Hall, Robert Lewis

Proceedings Volume 2806, (1996) https://doi.org/10.1117/12.253995

KEYWORDS: Sensors, Monte Carlo methods, X-rays, Device simulation, Telescopes, X-ray detectors, Collimators, X-ray sources, Satellites, X-ray telescopes

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Proceedings Article | 1 September 1995 Paper

10-MHz photon counting detector system for time-resolved x-ray diffraction

Robert Lewis, Christopher Hall, William Helsby, A. Jones, B. Parker, J. Sheldon

Proceedings Volume 2521, (1995) https://doi.org/10.1117/12.218362

KEYWORDS: Sensors, Diffraction, X-ray diffraction, Synchrotron radiation, Data acquisition, Photon counting, Silicon, Spatial resolution, Prototyping, Argon

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Proceedings Article | 11 November 1994 Paper

X-ray study of a test quadrant of the SODART telescopes using the expanded beam x-ray optics facility at the Daresbury synchrotron

Finn Christensen, Allan Hornstrup, Peter Frederiksen, Carl Budtz-Joergensen, Salim Abdali, Per Jonasson, P. Grundsoe, Josef Polny, Niels Westergaard, Hans Noergaard-Nielsen, Herbert Schnopper, Konstantin Borozdin, Christopher Hall, Robert Lewis

Proceedings Volume 2279, (1994) https://doi.org/10.1117/12.193176

KEYWORDS: Telescopes, Sensors, X-ray telescopes, Mirrors, Point spread functions, X-rays, Synchrotrons, Space telescopes, X-ray optics, Crystals

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Proceedings Article | 1 February 1994 Paper

Expanded beam x-ray optics calibration facility at the Daresbury Synchrotron

Finn Christensen, Allan Hornstrup, Peter Frederiksen, Salim Abdali, P. Grundsoe, Herbert Schnopper, Robert Lewis, Christopher Hall, Konstantin Borozdin

Proceedings Volume 2011, (1994) https://doi.org/10.1117/12.167225

KEYWORDS: Crystals, Laser crystals, Telescopes, Beam expanders, Calibration, Phase modulation, Synchrotrons, Collimation, Reflection, Sensors

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Proceedings Article | 31 January 1994 Paper

Molecular modeling of hydrogen bonding interactions

Rahima Dilshard, John Dixon, William George, Robert Lewis, Brian Minty, Roger Upton

Proceedings Volume 2089, (1994) https://doi.org/10.1117/12.166742

KEYWORDS: Hydrogen, Molecular interactions, Modeling, Collagen, Solids, Distance measurement, Computer simulations, Computing systems, Mechanics, Chemical engineering

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Proceedings Article | 19 October 1993 Paper

Performance of the MART-LIME high-energy detector

L. Waldron, Pietro Ubertini, Angela Bazzano, C. La Padula, Christopher Hall, Robert Lewis, Marie Soggiu

Proceedings Volume 1948, (1993) https://doi.org/10.1117/12.161379

KEYWORDS: Sensors

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Proceedings Article | 1 November 1990 Paper

Preliminary results from a high-pressure imaging spectroscopic proportional counter

Angela Bazzano, L. Boccaccini, M. Federici, G. Gianni, M. Manzan, R. Patriarca, Pietro Ubertini, F. D'Annunzio, Christopher Hall, Robert Lewis, B. Parker, J. Sheldon, Jeff Worgan

Proceedings Volume 1344, (1990) https://doi.org/10.1117/12.23242

KEYWORDS: Sensors, X-rays, Transparency, Spectral resolution, X-ray astronomy, Spectroscopy, Spatial resolution, Astronomy, Extreme ultraviolet, Gamma radiation

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SPIE Journal Paper | 1 August 1990

Test facility for astronomical x-ray optics

Robert Lewis, J. Bordas, Finn Christensen

OE, Vol. 29, Issue 08, (August 1990) https://doi.org/10.1117/12.10.1117/12.55680

KEYWORDS: X-ray optics, X-rays, Synchrotron radiation, Sensors, Astronomy, Optical testing, Optical components, X-ray telescopes, Collimation, Crystals

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Showing 5 of 16 publications

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