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3. The PixFEL front-end for X-ray imaging in the radiation environment of next generation FELs

Author

Ratti, L., primary, Comotti, D., additional, Fabris, L., additional, Grassi, M., additional, Lodola, L., additional, Malcovati, P., additional, Manghisoni, M., additional, Re, V., additional, Traversi, G., additional, Vacchi, C., additional, Batignani, G., additional, Bettarini, S., additional, Casarosa, G., additional, Forti, F., additional, Morsani, F., additional, Paladino, A., additional, Paoloni, E., additional, Rizzo, G., additional, Benkechkache, M.A., additional, Dalla Betta, G.-F., additional, Mendicino, R., additional, Pancheri, L., additional, Verzellesi, G., additional, and Xu, H., additional

Published
2017
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4. PFM2: A 32 × 32 readout chip for the PixFEL X-ray imager demonstrator

Author

Ratti, L., primary, Comotti, D., additional, Fabris, L., additional, Grassi, M., additional, Lodola, L., additional, Malcovati, P., additional, Manghisoni, M., additional, Re, V., additional, Traversi, G., additional, Vacchi, C., additional, Batignani, G., additional, Bettarini, S., additional, Casarosa, G., additional, Forti, F., additional, Morsani, F., additional, Paladino, A., additional, Paoloni, E., additional, Rizzo, G., additional, Benkechkache, M.A., additional, Dalla Betta, G.-F, additional, Mendicino, R., additional, Pancheri, L., additional, Verzellesi, G., additional, and Xu, H., additional

Published
2016
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5. A 10 bit resolution readout channel with dynamic range compression for X-ray imaging at FELs

Author

Comotti, D., primary, Fabris, L., additional, Grassi, M., additional, Lodola, L., additional, Malcovati, P., additional, Manghisoni, M., additional, Ratti, L., additional, Re, V., additional, Traversi, G., additional, Vacchi, C., additional, Batignani, G., additional, Bettarini, S., additional, Casarosa, G., additional, Forti, F., additional, Morsani, F., additional, Paladino, A., additional, Paoloni, E., additional, Rizzo, G., additional, Benckechkache, M. A., additional, Dalla Betta, G. F., additional, Mendicino, R., additional, Pancheri, L., additional, Verzellesi, G., additional, and Xu, H., additional

Published
2015
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6. PixFEL: Enabling technologies, building blocks and architectures for advanced X-ray pixel cameras at the next generation FELs

Author

Ratti, L., primary, Comotti, D., additional, Fabris, L., additional, Grassi, M., additional, Lodola, L., additional, Malcovati, P., additional, Manghisoni, M., additional, Re, V., additional, Traversi, G., additional, Vacchi, C., additional, Batignani, G., additional, Bettarini, S., additional, Casarosa, G., additional, Forti, F., additional, Morsani, F., additional, Paladino, A., additional, Paoloni, E., additional, Rizzo, G., additional, Benkechkache, M.A., additional, Dalla Betta, G.-F., additional, Mendicino, R., additional, Pancheri, L., additional, Verzellesi, G., additional, and Xu, H., additional

Published
2014
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8. Low-noise readout channel with a novel dynamic signal compression for future X-FEL applications

Author

Comotti, D., primary, Fabris, L., additional, Grassi, M., additional, Lodola, L., additional, Malcovati, P., additional, Manghisoni, M., additional, Ratti, L., additional, Re, V., additional, Traversi, G., additional, Vacchi, C., additional, Batignani, G., additional, Bettarini, S., additional, Casarosa, G., additional, Forti, F., additional, Morsani, F., additional, Paladino, A., additional, Paoloni, E., additional, Rizzo, G., additional, Benckechkache, M.A., additional, Dalla Betta, G.F., additional, Mendicino, R., additional, Pancheri, L., additional, Verzellesi, G., additional, and Xu, H., additional

Published
2014
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11. Performance of the Roadside Tracker portalless portal monitor

Author

Ziock, K.P., primary, Bradley, E.C., additional, Cheriyadat, A.M., additional, Cunningham, M., additional, Fabris, L., additional, Fitzgerald, C.L., additional, Goddard, J.S., additional, Hornback, D.E., additional, Kerekes, R.A., additional, Karnowski, T.P., additional, Marchant, W.T., additional, and Newby, R.J., additional

Published
2011
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16. Three-Dimensional Event Localization in Bulk Scintillator Crystals Using Optical Coded Apertures.

Author

Braverman, J. B., Fabris, L., Newby, J., Hornback, D., and Ziock, K. P.

Subjects
*SCINTILLATORS, *IONIZING radiation, *IONIZATION (Atomic physics), *PARTICLE detectors, *CRYSTALS
Abstract

Scintillator-based detectors are among the most commonly used methods for detecting ionizing radiation. Scintillators provide a reliable, cost-effective, and simple way to make large-volume detectors. Furthermore, localizing the position of the interactions in three dimensions within the crystals is useful to a wide array of fields. The most straightforward way of doing this is to pair the crystal with a position-sensitive phototransducer (PT). This allows for measurement of the shape of the light spot at the PT plane. Using this information, various methods exist to localize the gamma-ray interaction in the crystal; however, the position resolution worsens the farther the event occurs from the PT plane. To improve on the localization ability, this work uses an optical coded-aperture shadow mask between the crystal and the PT. The recorded detector response is used in reconstructing the event over the entire depth of the crystal, and the “sharpest” reconstructed image gives an event’s depth. The lateral position is given from the standard coded-aperture image reconstruction. Experimental results obtained by emulating a 26-mm-thick crystal using a thin 1-mm-thick NaI(Tl) crystal and different amounts of light pipe between the crystal and the PT plane achieved \sim 1 to 2-mm resolution in all three dimensions throughout most of the 26-mm-thick crystal. [ABSTRACT FROM PUBLISHER]

Published
2015
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26. Performance of the Roadside Tracker Portal-Less Portal Monitor.

Author

Ziock, K. P., Bradley, E. C., Cheriyadat, A., Cunningham, M., Fabris, L., Fitzgerald, C. L., Goddard, J. S., Hornback, D. E., Kerekes, R. A., Karnowski, T. P., Marchant, W. T., and Newby, J.

Subjects
PROTOTYPES, GAMMA ray detectors, MOTOR vehicles, AUTOMATIC tracking, IMAGING systems, TARGET acquisition
Abstract

We have developed a proof-of-concept prototype, rapid-deployment, gamma-ray portal monitor that can uniquely link the radiation signatures and visible-light images of vehicles in the system's field of view from the side of a multilane roadway. The instrument uses both visible-light and gamma-ray imaging to accomplish this. Vehicles entering the field of view of the visible-light imaging system are identified and tracked by an automated target acquisition and tracking software engine. The vehicle locations provided by this code are reported to the gamma-ray imager which uses them to locate the vehicles in the gamma-ray images and to collect the vehicle-specific radiation signatures from those images. Using this technique the gamma-ray data is integrated over the entire residence time of the vehicle in the gamma-ray imager field of view. The complete instrument comprises \sim 1-m^2CsI(Na) detector area split between two units. The system has been designed to handle up to five-lanes of traffic at highway speeds, with one unit located on either side of the roadway. Because no equipment is required in the roadway, the instrument can be deployed without impacting the flow of traffic. The results of a test and evaluation campaign indicates that the system meets its design goal of detecting 37 MBq-class sources in any of five-lanes of traffic at up to 113 km/h. [ABSTRACT FROM PUBLISHER]

Published
2013
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27. Source-Search Sensitivity of a Large-Area, Coded-Aperture, Gamma-Ray Imager.

Author

Ziock, K. P., Collins, J. W., Fabris, L., Gallagher, S., Horn, B. K. P., Lanza, R. C., and Madden, N. W.

Subjects
GAMMA ray sources, RADIATION sources, ELECTROMAGNETIC waves, IONIZING radiation, QUANTUM optics, ENGINEERING instruments, ELECTROMAGNETIC measurements, OPTOELECTRONIC devices, DETECTORS
Abstract

We have recently completed a large-area, coded-aperture, gamma-ray imager for use in searching for radiation sources. The instrument was constructed to verify that weak point sources can be detected at considerable distances if one uses imaging to overcome fluctuations in the natural background. The instrument uses a rank-19, one-dimensional coded aperture to cast shadow patterns onto a 0.57 m² NaI(TI) detector composed of 57 individual cubes each 10 cm on a side. These are arranged in a 19×3 array. The mask is composed of four-cm thick, one-meter high, 10-cm wide lead blocks. The instrument is mounted in the back of a small truck from which images are obtained as one drives through a region. Results of first measurements obtained with the system are presented. [ABSTRACT FROM AUTHOR]

Published
2006
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28. High-Speed Nuclear Quality Pulse Height Analyzer for Synchrotron-Based Applications.

Author

Beche, J.-F., Bucher, J.J., Fabris, L., Riot, V.J., and Shuh, D.K.

Subjects
PULSE height analyzers, SYNCHROTRONS, DETECTORS, FLUORESCENCE
Abstract

Describes the development of a high-throughput Pulse Height Analyzer system for synchrotron-based applications requiring high resolution, high processing seed and low dead-time. Components of the system; Method of transferring data; Capability of the system; Specifications of the fluorescence detector.

Published
2002
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29. Fast Peak Detector Stretchers for Use in XAFS Applications.

Author

Fabris, L. and Allen, P.G.

Subjects
*EXTENDED X-ray absorption fine structure, *DETECTORS
Abstract

Illustrates two different design approaches to the implementation of fast peak detector-stretchers for X-ray absorption fine structure fluorescence applications. Design philosophies; Measurements.

Published
1999
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30. A Fast Zero Dead-Time Single Channel Analyzer for Nuclear Spectroscopy Applications.

Author

Fabris, L. and Allen, P.G.

Subjects
*NUCLEAR spectroscopy, *EXTENDED X-ray absorption fine structure, *ELECTRIC circuits
Abstract

Describes an approach to the design of single channel analyzers (SCA) for high rate Nuclear Spectroscopy with an emphasis on accelerator based X-ray Absorption Fine Structure applications. Overview of the spectroscopy system; Description of the SCA circuit design; Measurements and results; Conclusions.

Published
1999
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