Dr. Richard C. Lanza Profile

Dr. Richard C. Lanza

Senior Scientist at Massachusetts Institute of Technology

SPIE Involvement:

Author

Proceedings Article | 1 May 2009 Paper

Michael Hynes, Maurice Toolin, Bernard Harris, John McElroy, Mark Wallace, Larry Schultz, Mark Galassi, Andrew Hoover, Michal Mocko, David Palmer, Shawn Tornga, Daniel Wakeford, H. Andrews, E. Clifford, Liqian Li, Nick Bray, Darren Locklin, Richard Lanza, Berthold Horn, David Wehe

Proceedings Volume 7310, 731003 (2009) https://doi.org/10.1117/12.818735

KEYWORDS: Imaging systems, Coded aperture imaging, Coded apertures, Imaging technologies, Sensors, Standoff detection, Satellites, Data visualization, Image fusion, Satellite imaging

Read Abstract +

Proceedings Article | 1 May 2009 Paper

The SORDS trimodal imager detector arrays

Daniel Wakeford, H. R. Andrews, E. T. H. Clifford, Liqian Li, Nick Bray, Darren Locklin, Michael Hynes, Maurice Toolin, Bernard Harris, John McElroy, Mark Wallace, Richard Lanza

Proceedings Volume 7310, 73100D (2009) https://doi.org/10.1117/12.818770

KEYWORDS: Sensors, Simulation of CCA and DLA aggregates, Crystals, Detector arrays, Field programmable gate arrays, Electronics, Calibration, Coded apertures, Coded aperture imaging, Imaging systems

Read Abstract +

Proceedings Article | 26 November 2002 Paper

Neutron resonance radiography for security applications

Richard Lanza

Proceedings Volume 4786, (2002) https://doi.org/10.1117/12.456310

KEYWORDS: Nitrogen, Explosives, Radiography, Carbon, Sensors, Oxygen, X-rays, Hydrogen, Inspection, Spatial resolution

Read Abstract +

Proceedings Article | 24 July 1998 Paper

Three-dimensional coded-aperture techniques in diagnostic nuclear medicine imaging

Li Zhang, Richard Lanza, Berthold Horn, Robert Zimmerman

Proceedings Volume 3336, (1998) https://doi.org/10.1117/12.317036

KEYWORDS: Coded apertures, Imaging systems, Collimators, Nuclear medicine, Coded aperture imaging, Signal to noise ratio, Cameras, 3D image processing, Sensors, Diagnostics

Read Abstract +

Proceedings Article | 27 February 1997 Paper

Cooled-CCD and amorphous silicon-based neutron imaging systems for low-fluence neutron sources

Richard Lanza, Eric McFarland, Shuanghe Shi

Proceedings Volume 2867, (1997) https://doi.org/10.1117/12.267926

KEYWORDS: Charge-coupled devices, Imaging systems, Sensors, Scintillation, Amorphous silicon, Electronics, CCD cameras, Electrons, Scintillators, Information operations

Read Abstract +

We have developed a neutron detection system for accelerator based neutron radiography and tomography based on a combination of scintillation screen and large aperture optics combined with a cooled CCD camera. The system is capable of detecting single neutron events and can therefore be considered as a possible detector for neutron scattering as well as conventional imaging. The system has a resolution of 0.1 mm or 1242 by 1152 pixels. The limit of image size is set by the light output of the scintillator, the light collection of the optical system, the size of the CCD and the desired signal to noise ratio. The lower limit on neutron flux is determined by the dark current of the chip. Equations for these limits have been derived and can be used to predict and optimize performance. The scintillation light output per incident neutron is large enough to permit the use of lens coupled systems with their increased flexibility and ease of implementation. The system can approach a quantum limited noise level, depending on the particular geometry used. For our current system, based on the use of NE 426 scintillator,³ a 1242 by 1152 pixel EEV CCD operating at -50C, and using a 100 mm focal length, F/0.9 lens, the maximum size for the imaging screen is 0.5 m, and the lower limit for flux is 1 n/pixel/s based on this size screen and a typical dark current of 10 e/pixel/s. We are now investigating a new type of imaging technology based on large amorphous silicon sensor arrays being developed by Xerox and others. A typical device is 200 by 250 mm with a pixel size of 127 micrometers and the entire array with all electronics is in a 400 mm by 37 mm package. Major advantages of this device are the high light coupling between scintillator screen and the sensor as well as the more compact nature of such an array, since no lens systems is required and, potentially, a much lower cost. Currently, the noise performance is worse than that of CCDs, largely due to the current electronic readout but should be adequate to produce quantum limited images if electronics can be improved.

Proceedings Article | 27 February 1997 Paper

RFQ-accelerator-based neutron radiography and tomography system

Richard Lanza, Yoel Fink, Erik. Iverson, Eric McFarland, Shuanghe Shi

Proceedings Volume 2867, (1997) https://doi.org/10.1117/12.267929

KEYWORDS: Imaging systems, Radiography, CCD cameras, Scintillators, Tomography, Collimation, Cameras, Corrosion, Information operations, Beryllium

Read Abstract +

Proceedings Article | 27 February 1997 Paper

Small deuteron accelerator as a source of slow neutrons

John Watterson, Richard Lanza, Jacok Guzek, U. Tapper, W. McMurray, Erik. Iverson

Proceedings Volume 2867, (1997) https://doi.org/10.1117/12.267847

KEYWORDS: Beryllium, Radiography, Monte Carlo methods, Scattering, Lithium, Particles, Physics, Nuclear engineering, Diamond, Analytical research

Read Abstract +

Proceedings Article | 27 February 1997 Paper

Windowless gas targets for neutron production

Erik. Iverson, Richard Lanza, L. Lidsky

Proceedings Volume 2867, (1997) https://doi.org/10.1117/12.267964

KEYWORDS: Information operations, Helium, Materials analysis, Nondestructive evaluation, Collimation, Particle beams, Solids, Optical testing, Polonium, Scientific research

Read Abstract +

Proceedings Article | 28 March 1994 Paper

Analysis of complex targets using fast neutrons

Curtis Bell, Ronald Krauss, Richard Lanza

Proceedings Volume 2092, (1994) https://doi.org/10.1117/12.171269

Read Abstract +

Proceedings Article | 2 February 1993 Paper

Recent advances in neutron tomography

Eric McFarland, Richard Lanza

Proceedings Volume 1737, (1993) https://doi.org/10.1117/12.138653

KEYWORDS: Sensors, Charge-coupled devices, Tomography, Imaging systems, Radiography, Scintillators, Nondestructive evaluation, Aluminum, Gamma radiation, CCD image sensors

Read Abstract +