Prof. Michael M. Schieber Profile

Prof. Michael M. Schieber

Retired Professor at Hebrew Univ of Jerusalem

SPIE Involvement:

Author

Publications (28)

Proceedings Article | 30 August 2006 Paper

Semiconductor polycrystalline alpha detectors

M. Schieber, M. Roth, A. Zuck, G. Marom, O. Khakhan, Z. Alfassi

Proceedings Volume 6319, 631914 (2006) https://doi.org/10.1117/12.683913

KEYWORDS: Sensors, Composites, Americium, Particles, Collimators, Boron, Semiconductors, Radium, Signal to noise ratio, Californium

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Proceedings Article | 17 September 2005 Paper

Nuclear spectroscopy with polycrystalline-PbI₂ radiation detectors

M. Schieber, N. Zamoshchuk, O. Khakhan, A. Zuck

Proceedings Volume 5922, 59220B (2005) https://doi.org/10.1117/12.619639

KEYWORDS: Crystals, Annealing, Electrons, Spectroscopy, Light emitting diodes, Electrodes, Sensors, Gold, Lead, Particles

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Proceedings Article | 26 October 2004 Paper

Dark current, sensitivity, and image lag comparison of mercuric iodide and lead iodide x-ray imagers

George Zentai, Larry Partain, Raisa Pavlyuchkova, Cesar Proano, Michael Schieber, Jerry Thomas

Proceedings Volume 5541, (2004) https://doi.org/10.1117/12.581223

KEYWORDS: Imaging systems, Crystals, X-ray imaging, Modulation transfer functions, Lead, X-rays, Sensors, Image resolution, Electrodes, Crystallography

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Proceedings Article | 6 May 2004 Paper

Mercuric iodide medical imagers for low-exposure radiography and fluoroscopy

George Zentai, Larry Partain, Raisa Pavlyuchkova, Cesar Proano, Barry Breen, A. Taieb, Ofer Dagan, Michael Schieber, Haim Gilboa, Jerry Thomas

Proceedings Volume 5368, (2004) https://doi.org/10.1117/12.535948

KEYWORDS: Imaging systems, Sensors, Electrodes, X-rays, X-ray detectors, Medical imaging, Radiography, Photoresistors, X-ray imaging, Modulation transfer functions

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Proceedings Article | 20 January 2004 Paper

Characterization of mercuric iodide photoconductor for radiographic and fluoroscopic medical imagers

Barry Breen, Ofer Dagan, Leonid Melekhov, Michael Schieber, Haim Gilboa, George Zentai, Larry Partain, Raisa Pavlyuchkova, Cesar Proano, Gary Virshup

Proceedings Volume 5198, (2004) https://doi.org/10.1117/12.510871

KEYWORDS: Photoresistors, Electrodes, X-rays, Imaging systems, Sensors, X-ray detectors, Image resolution, Aluminum, X-ray imaging, Palladium

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Proceedings Article | 5 June 2003 Paper

Mercuric iodide and lead iodide x-ray detectors for radiographic and fluoroscopic medical imaging

George Zentai, Larry Partain, Raisa Pavlyuchkova, Cesar Proano, Gary Virshup, L. Melekhov, A. Zuck, Barry Breen, O. Dagan, A. Vilensky, Michael Schieber, Haim Gilboa, Paul Bennet, Kanai Shah, Yuriy Dmitriyev, Jerry Thomas, Martin Yaffe, David Hunter

Proceedings Volume 5030, (2003) https://doi.org/10.1117/12.480227

KEYWORDS: Imaging systems, X-rays, Lead, Modulation transfer functions, Photoresistors, Sensors, X-ray detectors, Medical imaging, X-ray imaging, Image resolution

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Mercuric iodide (HgI₂) and lead iodide (PbI₂) have been under development for several years as direct converter layers in digital x-ray imaging. Previous reports have covered the basic electrical and physical characteristics of these and several other materials. We earlier reported on 5cm x 5cm and 10cm x 10cm size imagers, direct digital radiography X-ray detectors, based on photoconductive polycrystalline mercuric iodide deposited on a flat panel thin film transistor (TFT) array, as having great potential for use in medical imaging, NDT, and security applications. This paper, presents results and comparison of both lead iodide and mercuric iodide imagers scaled up to 20cm x 25cm sizes. Both the mercuric iodide and lead iodide direct conversion layers are vacuum deposited onto TFT array by Physical Vapor Deposition (PVD). This process has been successfully scaled up to 20cm x 25cm -- the size required in common medical imaging applications. A TFT array with a pixel pitch of 127 microns was used for this imager. In addition to increasing detector size, more sophisticated, non-TFT based small area detectors were developed in order to improve analysis methods of the mercuric and lead iodide photoconductors. These small area detectors were evaluated in radiographic mode, continuous fluoroscopic mode and pulsed fluoroscopic mode. Mercuric iodide coating thickness ranging between 140 microns and 300 microns and lead iodide coating thickness ranging between 100 microns and 180 microns were tested using beams with energies between 40 kVp and 100 kVp, utilizing exposure ranges typical for both fluoroscopic and radiographic imaging. Diagnostic quality radiographic and fluoroscopic images have been generated at up to 15 frames per second. Mercuric iodide image lag appears adequate for fluoroscopic imaging. The longer image lag characteristics of lead iodide make it only suitable for radiographic imaging. For both material the MTF is determined primarily by the aperture and pitch of the TFT array (Nyquist frequency of ~3.93 mm^-1 (127 micron pixel pitch).

Proceedings Article | 10 January 2003 Paper

Grain geometry effect on responsivity of semiconducting HgI2/polymer x-ray detectors

Yehezkel Saado, Michael Schieber

Proceedings Volume 4784, (2003) https://doi.org/10.1117/12.465800

KEYWORDS: Crystals, Sensors, Polymers, Composites, Prisms, X-ray detectors, Semiconductors, Particles, X-rays, Electrons

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Proceedings Article | 10 January 2003 Paper

Delayed emission of surface-generated trapped carriers in transient charge transport of single-crystal and polycrystalline HgI2

Asaf Zuck, Michael Schieber, Oleg Khakhan, Zeev Burshtein

Proceedings Volume 4784, (2003) https://doi.org/10.1117/12.455774

KEYWORDS: Crystals, Electrons, Sensors, Electrodes, Particles, Absorption, X-ray detectors, Physical vapor deposition, Time metrology, Radiography

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Proceedings Article | 11 June 2002 Paper

Large area mercuric iodide thick film x-ray detectors for fluoroscopic (on-line) imaging

George Zentai, Larry Partain, Raisa Pavlyuchkova, Cesar Proano, Gary Virshup, Barry Breen, Asaf Zuck, Benjamin Reisman, A. Taieb, Michael Schieber

Proceedings Volume 4702, (2002) https://doi.org/10.1117/12.469906

KEYWORDS: X-rays, Imaging systems, Sensors, X-ray imaging, X-ray detectors, Image resolution, Modulation transfer functions, Imaging arrays, Nondestructive evaluation, Coating

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Proceedings Article | 19 December 2001 Paper

Electrical properties of polycrystalline mercuric iodide x-ray detectors

Haim Hermon, Robert Street, Leonid Melekhov, Asaf Zuck, Alexander Vilensky, Steve Ready, George Zentai, Michael Schieber, Larry Partain

Proceedings Volume 4508, (2001) https://doi.org/10.1117/12.450792

KEYWORDS: Sensors, X-rays, X-ray detectors, Spatial resolution, Imaging arrays, X-ray imaging, Imaging systems, Amorphous silicon, Radiography, Image resolution

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Proceedings Article | 18 December 2001 Paper

Detector performance crystallinity and impurity study of cadmium zinc telluride crystals grown from the melt

Haim Hermon, Michael Schieber, M. Factor, Tuviah Schlesinger, Ralph James, H. Yoon, Mark Goorsky

Proceedings Volume 4507, (2001) https://doi.org/10.1117/12.450757

KEYWORDS: Crystals, Sensors, Cadmium, Crystallography, Zinc, X-ray diffraction, Sensor performance, Tellurium, Luminescence, Spectroscopy

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Proceedings Article | 24 July 2001 Paper

Nondestructive imaging with mercuric iodide thick film x-ray detectors

Michael Schieber, Haim Hermon, Asaf Zuck, Alexander Vilensky, Leonid Melekhov, Michael Lukach, Evgenie Meerson, Yehezkel Saado, E. Shtekel, Benjamin Reisman, G. Zentai, L. Partain, E. Seppi, Raisa Pavlyuchkova, G. Virshup, Robert Street, Steve Ready

Proceedings Volume 4335, (2001) https://doi.org/10.1117/12.434200

KEYWORDS: Imaging systems, X-rays, Sensors, Image resolution, Nondestructive evaluation, X-ray detectors, Surface plasmons, X-ray imaging, Crystals, Electrodes

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Proceedings Article | 28 June 2001 Paper

Deposition of thick films of polycrystalline mercuric iodide x-ray detectors

Haim Hermon, Michael Schieber, Asaf Zuck, Alexander Vilensky, Leonid Melekhov, E. Shtekel, A. Green, O. Dagan, Steve Ready, Robert Street, E. Seppi, Raisa Pavlyuchkova, G. Virshup, G. Zentai, L. Partain

Proceedings Volume 4320, (2001) https://doi.org/10.1117/12.430922

KEYWORDS: Imaging systems, Sensors, X-ray imaging, X-rays, Electrodes, X-ray detectors, Imaging arrays, Dielectrics, Clocks, Physical vapor deposition

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Proceedings Article | 28 June 2001 Paper

Comparative study of Pbl2 and Hgl2 as direct detector materials for high-resolution x-ray image sensors

Robert Street, Marcelo Mulato, Michael Schieber, Haim Hermon, Kanai Shah, Paul Bennett, Yuri Dmitryev, Jackson Ho, Rachel Lau, Evgenie Meerson, Steve Ready, Benjamin Reisman, Y. Sado, Koenraad Van Schuylenbergh, Alexander Vilensky, Asaf Zuck

Proceedings Volume 4320, (2001) https://doi.org/10.1117/12.430858

KEYWORDS: X-rays, X-ray imaging, Signal attenuation, Imaging systems, Absorption, Electrons, Image sensors, Mammography, Chlorine, X-ray detectors

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Proceedings Article | 18 December 2000 Paper

Mercuric iodide thick films for radiological x-ray detectors

Michael Schieber, Haim Hermon, Robert Street, Steve Ready, Asaf Zuck, Alexander Vilensky, Leonid Melekhov, Rubil Shatunovsky, Michael Lukach, Evgenie Meerson, Yehezkel Saado, Eithan Pinkhasy

Proceedings Volume 4142, (2000) https://doi.org/10.1117/12.410563

KEYWORDS: Sensors, X-rays, X-ray detectors, Electrodes, Surface plasmons, Dielectric polarization, X-ray imaging, Signal detection, Gold, Polarization

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Proceedings Article | 18 December 2000 Paper

High-resolution x-ray image sensors based on HgI2

Robert Street, Marcelo Mulato, Steve Ready, Rachel Lau, Jackson Ho, Koenraad Van Schuylenbergh, Michael Schieber, Haim Hermon, Asaf Zuck, Alexander Vilensky

Proceedings Volume 4142, (2000) https://doi.org/10.1117/12.410562

KEYWORDS: X-rays, X-ray imaging, Image sensors, Ionization, Interference (communication), Absorption, Modulation transfer functions, Electronics, Crystals, Electrons

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Proceedings Article | 21 November 2000 Paper

Characterization of CZT detectors grown from horizontal and vertical Bridgman

Haim Hermon, Michael Schieber, Mark Goorsky, Terrance Lam, Evgenie Meerson, H. Walter Yao, Jay Erickson, Ralph James

Proceedings Volume 4141, (2000) https://doi.org/10.1117/12.407580

KEYWORDS: Crystals, Sensors, Spectroscopy, X-rays, X-ray diffraction, X-ray detectors, Chlorine, Digital x-ray imaging, X-ray imaging, Single crystal X-ray diffraction

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Proceedings Article | 25 April 2000 Paper

Radiological x-ray response of polycrystalline mercuric-iodide detectors

Michael Schieber, Haim Hermon, Robert Street, Steve Ready, Asaf Zuck, Alexander Vilensky, Leonid Melekhov, Rubil Shatunovsky, Evgenie Meerson, Yehezkel Saado

Proceedings Volume 3977, (2000) https://doi.org/10.1117/12.384520

KEYWORDS: X-rays, Sensors, Electrodes, X-ray detectors, Amorphous silicon, Polymers, Image sensors, X-ray imaging, Gold, Photoresistors

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Proceedings Article | 25 April 2000 Paper

High-resolution direct-detection x-ray imagers

Robert Street, Steve Ready, Jeffrey Rahn, Marcelo Mulato, Kanai Shah, Paul Bennett, Ping Mei, Jeng-Ping Lu, Raj Apte, Jackson Ho, Koenraad Van Schuylenbergh, Francesco Lemmi, James Boyce, Per Nylen, Michael Schieber, Haim Hermon

Proceedings Volume 3977, (2000) https://doi.org/10.1117/12.384516

KEYWORDS: X-rays, Modulation transfer functions, Photoresistors, X-ray imaging, Interference (communication), Image sensors, Absorption, Spatial resolution, X-ray detectors, Sensors

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Proceedings Article | 19 October 1999 Paper

Compensation and trapping in semi-insulating CdZnTe

Edwin Lee, J. McChesney, Ralph James, Richard Olsen, Haim Hermon, Michael Schieber

Proceedings Volume 3768, (1999) https://doi.org/10.1117/12.366575

KEYWORDS: Sensors, Temperature metrology, Luminescence, Thermoelectric materials, Signal detection, Chemical species, Crystals, Zinc, Lithium, Spectroscopy

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Proceedings Article | 19 October 1999 Paper

High-flux x-ray response of composite mercuric iodide detectors

Michael Schieber, Asaf Zuck, Leonid Melekhov, Rubil Shatunovsky, Haim Hermon, Renato Turchetta

Proceedings Volume 3768, (1999) https://doi.org/10.1117/12.366594

KEYWORDS: Sensors, Crystals, Composites, Semiconductors, X-rays, Dielectrics, X-ray detectors, Polymers, Capacitance, Radiology

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Proceedings Article | 19 October 1999 Paper

Correlation between nuclear response and defects in CZT

Haim Hermon, Michael Schieber, Ralph James, Edwin Lee, Eilene Cross, Mark Goorsky, Toan Lam, Tuviah Schlesinger, Corin Greaves

Proceedings Volume 3768, (1999) https://doi.org/10.1117/12.366577

KEYWORDS: Crystals, Spectroscopy, Neodymium, Sensors, Zinc, Crystallography, Electrons, Silicon, X-ray diffraction, Infrared spectroscopy

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Proceedings Article | 6 October 1999 Paper

Polycrystalline mercuric iodide detectors

Michael Schieber, Haim Hermon, Asaf Zuck, Alexander Vilensky, Leonid Melekhov, Rubil Shatunovsky, Evgenie Meerson, Yehezkel Saado

Proceedings Volume 3770, (1999) https://doi.org/10.1117/12.368177

KEYWORDS: X-rays, Sensors, X-ray detectors, Crystals, Electrodes, Surface plasmons, Electrons, Silicon, Metals, X-ray imaging

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Proceedings Article | 10 November 1998 Paper

VLSI readout for imaging with polycrystalline mercuric iodide detectors

Renato Turchetta, Wojtek Dulinski, D. Husson, N. Klein, J. Riester, Michael Schieber, Asaf Zuck, M. Braiman, Leonid Melekhov, J. Nissenbaum, S. Sanguinetti

Proceedings Volume 3445, (1998) https://doi.org/10.1117/12.330293

KEYWORDS: Sensors, Electrodes, Ceramics, Very large scale integration, Electronics, Spatial resolution, Crystals, Particles, Electrons, Gold

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Proceedings Article | 1 July 1998 Paper

Structural defects and impurities on CZT crystals

Haim Hermon, Colin Hackett, Ed Tarver, Eilene Cross, Nancy Yang, Ralph James, Michael Schieber, Vitaliy Komar, Nikolai Kolesnikov

Proceedings Volume 3446, (1998) https://doi.org/10.1117/12.312903

KEYWORDS: Crystals, Carbon, Laser ablation, Sensors, Scanning electron microscopy, Photomicroscopy, Pulsed laser operation, Tellurium, Crystallography, Infrared spectroscopy

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Proceedings Article | 1 April 1998 Paper

Large-area HgI2 pixel detector experiments

Michael Schieber, Asaf Zuck, M. Braiman, Leonid Melekhov, J. Nissenbaum, Renato Turchetta, Wojtek Dulinski, D. Husson, J. Riester, S. Sanguinetti, M. Montalti, M. Guzzi

Proceedings Volume 3301, (1998) https://doi.org/10.1117/12.304564

KEYWORDS: Sensors, Electrodes, Ceramics, Surface plasmons, Signal detection, Electrons, Crystals, Semiconductors, Electronics, Image sensors

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Proceedings Article | 7 July 1997 Paper

Polycrystalline mercuric iodide detectors

Michael Schieber, Asaf Zuck, M. Braiman, Leonid Melekhov, J. Nissenbaum, Renato Turchetta, Wojtek Dulinski, D. Husson, J. Riester

Proceedings Volume 3115, (1997) https://doi.org/10.1117/12.277684

KEYWORDS: Sensors, Electrons, Particles, Electrodes, Ceramics, Crystals, Information operations, Nuclear radiation, Gold, Silicon

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Proceedings Article | 7 July 1997 Paper

Evaluation of Russian-grown Cd0.8Zn0.2Te

Michael Schieber, Haim Hermon, Ralph James, James Lund, Arlyn Antolak, Daniel Morse, Nikolai Kolesnikov, Y. Ivanov, Mark Goorsky, H. Yoon, James Toney, Tuviah Schlesinger

Proceedings Volume 3115, (1997) https://doi.org/10.1117/12.277699

KEYWORDS: Crystals, Sensors, Tellurium, Zinc, Nuclear radiation, X-ray diffraction, Luminescence, Infrared microscopy, Microscopy, Cadmium

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Showing 5 of 28 publications

Conference Committee Involvement (9)

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

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

11 August 2008 | San Diego, California, United States

Hard X-Ray and Gamma-Ray Detector Physics IX

27 August 2007 | San Diego, California, United States

Showing 5 of 9 Conference Committees

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