Dr. Lodewijk van den Berg Profile

Dr. Lodewijk van den Berg

Chief Scientist at Constellation Technology Corp

SPIE Involvement:

Author

Proceedings Article | 21 September 2007 Paper

Fabrication and performance of mercuric iodide pixellated detectors

Lodewijk van den Berg, Lloyd Bastian, Feng Zhang, Howard Lenos

Proceedings Volume 6706, 67060J (2007) https://doi.org/10.1117/12.740175

KEYWORDS: Sensors, Crystals, Electrons, Spectral resolution, Sputter deposition, Resistance, Signal processing, Palladium, Sensor performance, Surface finishing

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Proceedings Article | 11 September 2006 Paper

Conductivity variations in mercuric iodide detectors

Lodewijk van den Berg

Proceedings Volume 6319, 631912 (2006) https://doi.org/10.1117/12.681620

KEYWORDS: Sensors, Mercury, Crystals, Polarization, Iodine, Semiconductors, Doping, Ionizing radiation, Solid state electronics, Spectral resolution

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Proceedings Article | 17 September 2005 Paper

Conduction characteristics in HgI₂ devices

W. Brock Alexander, Paul Holloway, Mark Davidson, Narada Bradman, John Sandoval, L. van den Berg, Colleen Spiegel

Proceedings Volume 5922, 59220R (2005) https://doi.org/10.1117/12.617989

KEYWORDS: Sensors, Crystals, Electrons, Semiconductors, Temperature metrology, Interfaces, Resistance, Physics, Palladium, Baryon acoustic oscillations

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Proceedings Article | 17 September 2005 Paper

Measurement of charge carrier properties in mercuric iodide

Lodewijk van den Berg, William Alexander, Kenneth Pohl, John Sandoval

Proceedings Volume 5922, 59220P (2005) https://doi.org/10.1117/12.622363

KEYWORDS: Sensors, Electrons, Crystals, Spectral resolution, Gamma radiation, Time metrology, Sensor performance, Active sensors, Materials processing, Shape analysis

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Proceedings Article | 21 October 2004 Paper

Characterization of strain and crystallographic defects in HgI2 single crystals

W. Brock Alexander, John Sandoval, Lodewijk van den Berg

Proceedings Volume 5540, (2004) https://doi.org/10.1117/12.565027

KEYWORDS: Crystals, Raman spectroscopy, Sensors, X-rays, Single crystal X-ray diffraction, X-ray diffraction, Scattering, Etching, Reflection, Sensor performance

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Proceedings Article | 20 January 2004 Paper

Spectral performance of mercuric iodide gamma-ray detectors at elevated temperatures

Lodewijk van den Berg, Alan Proctor, Kenneth Pohl

Proceedings Volume 5198, (2004) https://doi.org/10.1117/12.506210

KEYWORDS: Sensors, Gamma radiation, Temperature metrology, Spectral resolution, Electronics, Americium, Cesium, Solid state electronics, Energy efficiency, Roads

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Proceedings Article | 25 January 2002 Paper

Mercuric iodide x-ray and gamma-ray detectors for astronomy

Lodewijk Van den Berg, John Sandoval, Ronald Vigil, John Richards, Fred Vaccaro, Martin Hykin, Raymond DeVito

Proceedings Volume 4497, (2002) https://doi.org/10.1117/12.454215

KEYWORDS: Sensors, Gamma radiation, X-ray astronomy, Spectral resolution, X-ray detectors, Astronomy, Photodetectors, Gamma-ray astronomy, X-rays, Temperature metrology

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Proceedings Article | 18 December 2001 Paper

Long-term spectral stability of HgI2 gamma-ray detectors

Fred Vaccaro, Lodewijk Van den Berg, Laurel Szubart, Ronald Vigil, Raymond DeVito, Craig Johnson

Proceedings Volume 4507, (2001) https://doi.org/10.1117/12.450747

KEYWORDS: Sensors, Gamma radiation, Cesium, Americium, Semiconductors, Spectroscopy, Signal detection, Amplifiers, Capacitance, Electronics

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Proceedings Article | 21 November 2000 Paper

Contactless measurements of charge traps and carrier lifetimes in detector-grade cadmium zinc telluride and mercuric iodide

Gary Tepper, Royal Kessick, Ralph James, Lodewijk Van den Berg

Proceedings Volume 4141, (2000) https://doi.org/10.1117/12.407568

KEYWORDS: Sensors, Microwave radiation, Ionization, Zinc, Sensor performance, Semiconductors, Cadmium, Temperature metrology, Spectroscopy, Pulsed laser operation

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Proceedings Article | 1 October 1999 Paper

Recent advances in mercuric iodide detector fabrication and instrument development

Lodewijk Van den Berg, Steven Pauly

Proceedings Volume 3769, (1999) https://doi.org/10.1117/12.363683

KEYWORDS: Sensors, Crystals, Spectroscopy, Gamma radiation, Spectral resolution, Detector development, Optical filters, LCDs, Sensor performance, Process control

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Proceedings Article | 3 February 1993 Paper

Study of stoichiometry in mercuric iodide by low-temperature photoluminescence spectroscopy

Xue Bao, Ralph James, C.-Y. Hung, Tuviah Schlesinger, A. Cheng, Carol Ortale, Lodewijk Van den Berg

Proceedings Volume 1736, (1993) https://doi.org/10.1117/12.140487

KEYWORDS: Iodine, Mercury, Crystals, Sensors, Luminescence, Spectroscopy, X-ray detectors, Physics, Doping, Crystallography

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Proceedings Article | 1 December 1991 Paper

Crystal surface analysis using matrix textural features classified by a probabilistic neural network

Curry Sawyer, Viet Quach, Donald Nason, Lodewijk Van den Berg

Proceedings Volume 1567, (1991) https://doi.org/10.1117/12.50820

KEYWORDS: Crystals, Neural networks, Image processing, Digital imaging, Digital image processing, Image classification, Matrices, Imaging systems, Video, Cameras

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Proceedings Article | 1 December 1991 Paper

High-resolution synchrotron x-radiation diffraction imaging of crystals grown in microgravity and closely related terrestrial crystals

Bruce Steiner, Ronald Dobbyn, David Black, Harold Burdette, Masao Kuriyama, Richard Spal, Lodewijk Van den Berg, Archibald Fripp, Richard Simchick, Ravindra Lal, Ashok Batra, David Matthiesen, Brian Ditchek

Proceedings Volume 1557, (1991) https://doi.org/10.1117/12.49594

KEYWORDS: Crystals, Diffraction, Tin, Sensors, Synchrotrons, Lead, Astronomical imaging, Gallium arsenide, Image resolution, Sensor performance

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Showing 5 of 13 publications

Conference Committee Involvement (10)

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV

26 August 2013 | San Diego, California, United States

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIV

13 August 2012 | San Diego, California, United States

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIII

22 August 2011 | San Diego, California, United States

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII

2 August 2010 | San Diego, California, United States

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI

3 August 2009 | San Diego, California, United States

Showing 5 of 10 Conference Committees

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