Mr. Christopher A. Craven Profile

Christopher A. Craven

at Incom, Inc.

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 19 September 2017 Presentation

Life testing of ALD-GCA MCPs: recent results (Conference Presentation)

Mark Popecki, Christopher Craven, Till Cremer, William Worstell, Michael Minot, Bernhard Adams, Michael Foley, Alexey Lyashenko, Justin Bond, Michael Stochaj, Camden Ertley, Oswald H. Siegmund, Jeffrey Elam, Anil Mane

Proceedings Volume 10397, 103970Y (2017) https://doi.org/10.1117/12.2277365

KEYWORDS: Microchannel plates, Resistance, Atomic layer deposition, Glasses, Thin films, Tolerancing, Manufacturing, Photodiodes

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Proceedings Article | 19 September 2017 Presentation

ALD-microchannel plates for cryogenic applications (Conference Presentation)

Till Cremer, Bernhard Adams, Melvin Aviles, Justin Bond, Christopher Craven, Michael Foley, Alexey Lyashenko, Michael Minot, Mark Popecki, Michael Stochaj, William Worstell, Jeffrey Elam, Anil Mane, Oswald H. Siegmund, Camden Ertley

Proceedings Volume 10397, 103970Z (2017) https://doi.org/10.1117/12.2277185

KEYWORDS: Microchannel plates, Resistance, Cryogenics, Atomic layer deposition, Glasses, Manufacturing, Semiconductors, Temperature metrology, Nanostructures

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Proceedings Article | 19 January 2017 Presentation + Paper

Curved microchannel plates for compact spaceflight particle detection

Mark Popecki, Aileen O'Mahony, Till Cremer, Michael Stochaj, John Lewis, Michael Minot, Lynn Kistler, Mark Granoff, O. H. Siegmund, Camden Ertley, Anil Mane, Jeffrey Elam, Chris Craven, Justin Bond, Michael Foley

Proceedings Volume 9978, 99780K (2017) https://doi.org/10.1117/12.2236426

KEYWORDS: Microchannel plates, Particles, Glasses, Thin films, Satellites, Space operations, Resistance, Remote sensing, Current controlled current source

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Proceedings Article | 4 October 2016 Presentation + Paper

Development of polycapillary x-ray optics for x-ray spectroscopy

Bernhard Adams, Klaus Attenkofer, Justin Bond, Christopher Craven, Till Cremer, Aileen O'Mahony, Michael Minot, Mark Popecki

Proceedings Volume 9964, 996409 (2016) https://doi.org/10.1117/12.2238294

KEYWORDS: X-ray optics, X-rays, Capillaries, X-ray imaging, Spectroscopy, Reflection, Reflectivity, Imaging systems, Coating, Rhodium

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Proceedings Article | 30 September 2016 Presentation + Paper

Pilot production and advanced development of large-area picosecond photodetectors

Michael Minot, Bernhard Adams, Melvin Aviles, Justin Bond, Christopher Craven, Till Cremer, Michael Foley, Alexey Lyashenko, Mark Popecki, Michael Stochaj, William Worstell, Anil Mane, Jeffrey Elam, Oswald H. Siegmund, Camden Ertley, Henry Frisch, Andrey Elagin

Proceedings Volume 9968, 99680X (2016) https://doi.org/10.1117/12.2237331

KEYWORDS: Microchannel plates, Picosecond phenomena, Photodetectors, Atomic layer deposition, Sensors, Ceramics, Resistance, Glasses, Quantum efficiency, Indium

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We report pilot production and advanced development performance results achieved for Large Area Picosecond Photodetectors (LAPPD). The LAPPD is a microchannel plate (MCP) based photodetector, capable of imaging with single-photon sensitivity at high spatial and temporal resolutions in a hermetic package with an active area of 400 square centimeters. In December 2015, Incom Inc. completed installation of equipment and facilities for demonstration of early stage pilot production of LAPPD. Initial fabrication trials commenced in January 2016. The “baseline” LAPPD employs an all-glass hermetic package with top and bottom plates and sidewalls made of borosilicate float glass. Signals are generated by a bi-alkali Na₂KSb photocathode and amplified with a stacked chevron pair of “next generation” MCPs produced by applying resistive and emissive atomic layer deposition coatings to borosilicate glass capillary array (GCA) substrates. Signals are collected on RF strip-line anodes applied to the bottom plates which exit the detector via pinfree hermetic seals under the side walls. Prior tests show that LAPPDs have electron gains greater than 107, submillimeter space resolution for large pulses and several mm for single photons, time resolutions of 50 picoseconds for single photons, predicted resolution of less than 5 picoseconds for large pulses, high stability versus charge extraction, and good uniformity. LAPPD performance results for product produced during the first half of 2016 will be reviewed. Recent advances in the development of LAPPD will also be reviewed, as the baseline design is adapted to meet the requirements for a wide range of emerging application. These include a novel ceramic package design, ALD coated MCPs optimized to have a low temperature coefficient of resistance (TCR) and further advances to adapt the LAPPD for cryogenic applications using Liquid Argon (LAr). These developments will meet the needs for DOE-supported RD for the Deep Underground Neutrino Experiment (DUNE), nuclear physics applications such as EIC, medical, homeland security and astronomical applications for direct and indirect photon detection.

Proceedings Article | 27 July 2016 Paper

Second generation large area microchannel plate flat panel phototubes

C. Ertley, O. H. Siegmund, S. Jelinsky, J. Tedesco, M. Minot, A. O’Mahony, C. Craven, M. Popecki, A. Lyashenko, M. Foley

Proceedings Volume 9915, 99152G (2016) https://doi.org/10.1117/12.2233073

KEYWORDS: Microchannel plates, Atomic layer deposition, Sensors, Glasses, Indium, Quantum efficiency, Picosecond phenomena, Ceramics, Image processing, Pulsed laser operation

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Proceedings Article | 26 August 2015 Paper

Development of polycapillary x-ray optics for synchrotron spectroscopy

Mark Popecki, Daniel Bennis, Bernhard Adams, Aileen O'Mahony, Christopher Craven, Michael Foley, Michael Minot, Joseph Renaud, Justin Bond, Michael Stochaj, Klaus Attenkofer, Eli Stavitski

Proceedings Volume 9588, 95880D (2015) https://doi.org/10.1117/12.2188687

KEYWORDS: Capillaries, X-rays, X-ray optics, Optical fibers, Reflectivity, Spectroscopy, Optics manufacturing, Atomic layer deposition, Reflection, X-ray sources

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Proceedings Article | 24 August 2015 Paper

Characterization of borosilicate microchannel plates functionalized by atomic layer deposition

C. Ertley, O. H. Siegmund, J. Schwarz, A. Mane, M. Minot, A. O'Mahony, C. Craven, M. Popecki

Proceedings Volume 9601, 96010S (2015) https://doi.org/10.1117/12.2191892

KEYWORDS: Microchannel plates, Atomic layer deposition, Quantum efficiency, Electrodes, Ultraviolet radiation, Glasses, Sensors, Resistance, Lead glass, Borosilicate glass

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Proceedings Article | 26 September 2013 Paper

Performance characteristics of atomic layer functionalized microchannel plates

O. H. Siegmund, N. Richner, G. Gunjala, J. McPhate, A. Tremsin, H. Frisch, J. Elam, A. Mane, R. Wagner, C. Craven, M. Minot

Proceedings Volume 8859, 88590Y (2013) https://doi.org/10.1117/12.2024919

KEYWORDS: Microchannel plates, Atomic layer deposition, Ultraviolet radiation, Sensors, Glasses, Modulation, Distortion, Lead glass, Borosilicate glass, Resistance

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Proceedings Article | 14 September 2011 Paper

Advances in microchannel plates and photocathodes for ultraviolet photon counting detectors

O. H. Siegmund, K. Fujiwara, R. Hemphill, S. Jelinsky, J. McPhate, A. Tremsin, J. Vallerga, H. Frisch, J. Elam, A. Mane, D. Bennis, C. Craven, M. Deterando, J. Escolas, M. Minot, J. Renaud

Proceedings Volume 8145, 81450J (2011) https://doi.org/10.1117/12.894374

KEYWORDS: Microchannel plates, Atomic layer deposition, Sensors, Ultraviolet radiation, Quantum efficiency, Glasses, Gallium nitride, Photon counting, Distortion, Resistance

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Showing 5 of 10 publications

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