Senior R&D Engineer
Lorenzo Fabris is Senior R&D Engineer in the Nuclear Security and Isotope Technologies Division at Oak Ridge National Laboratory. He received his Master’s degree in microelectronics and electronic instrumentation from University of Pavia, Italy in 1993 and his PhD from the University of Bergamo in 2016. In 1994 he joined Lawrence Berkeley National Laboratory as Engineering Division Fellow Intern and later as staff engineer with the Measurement Science Group. Lorenzo’s work at Lawrence Berkeley National Laboratory has been focused on the development of low noise readout electronics for X- and gamma-ray detector systems used for beamline experiments at particle accelerators and light sources, space missions, environmental and non-proliferation applications. In 2002, he joined Lawrence Livermore National Laboratory as senior engineer expanding his interests to system design and new detector materials and taking technical lead of different radiation detection projects. At LLNL, Lorenzo led the Large Area Imager project, an effort funded by the Department of Homeland Security to demonstrate that imaging applied to gamma ray detection improves system sensitivity in stand-off detection and search. The technology was awarded an R&D100 award and an FLC Southeast award. In 2007 Lorenzo joined ORNL where he serves as lead engineer and PI on several radiation detection and imaging projects. His recent work includes instrumentation for gamma-ray imaging detectors, neutron detectors and advanced neutron imaging systems. Lorenzo also serves in editorial roles with the IEEE Nuclear Plasma and Science Society. He is chair of the Radiation Instrumentation Steering Committee.
1997 and 2002: “Outstanding Performance Award” from Lawrence Berkeley National Laboratory
2005 and 2006: “I-Division Spot Award” from Lawrence Livermore National Laboratory
2007: R&D 100 Award for the “Large Area Imager”
2009: FLC Far West award for "Outstanding Partnership: Large Area Imager (LAI): A Breakthrough in Long-Range Radiation Detection"
2010: “Exceptional Effort Award” from Oak Ridge National Laboratory
2010: Team award from the DNDO Office of the Department of Homeland Security for exceptional work and contributions to the mission.
2011: ORNL Special Event Award for the Roadside Tracker Project.
2011: UT-Battelle Award in Engineering R&D “For development of the Roadside Tracker, a highly innovative instrument for the detection of illicit nuclear materials in freely flowing vehicular traffic”.
L. Fabris, F.S. Goulding, N.W. Madden, P.F. Manfredi, “Spreading resistance measurements in p-n junctions - a simple technique”, Nucl. Instr. and Meth. in Phys. Res. A, (386) 2-3, pp. 470-473.
L. Fabris, P.G. Allen, J.J. Bucher, N.M. Edelstein, D.A. Landis, N.W. Madden, D.K. Shuh, “Fast Peak Detector Stretchers for Use in XAFS Applications”, IEEE Trans. on Nucl. Sci., Vol. 46, Issue 6, December 1999, pp. 1891-1893.
L. Fabris, P.G. Allen, J.J. Bucher, N.M. Edelstein, D.A. Landis, N.W. Madden, D.K. Shuh, “A Fast Zero Dead-Time Single Channel Analyzer for Nuclear Spectroscopy Applications”, IEEE Trans. on Nucl. Sci., Vol. 46, Issue 3, Part 1, June 1999, pp. 417-419.
L. Fabris, N.W. Madden, H. Yaver, “A fast, compact solution for low noise preamplifiers”, Nucl. Instr. and Meth. in Phys. Res. A, (424) 2-3 (1999), pp. 545-551.
L. Fabris, J.A. Becker, F.S. Goulding, N.W. Madden, “Simultaneous Ballistic Deficit Immunity and Resilience to Parallel Noise Sources: A New Pulse Shaping Technique”, IEEE Trans. on Nucl. Sci., Vol. 48, Issue. 3, Part 1, June 2001, pp. 450-454.
L. Fabris, P.F. Manfredi, “Optimization of Front-End Design in Imaging and Spectrometry Applications with Room Temperature Semiconductor Detectors”, IEEE Trans. on Nucl. Sci., Vol. 49, Issue 3, Part 1, Aug. 2002, pp. 1978-1985.
L. Fabris, J-F. Beche, J.J. Bucher, V.J. Riot, D.K. Shuh, “High-speed nuclear quality pulse height analyzer for synchrotron-based applications”, IEEE Trans. on Nucl. Sci., Vol. 49, Issue 3, Part 2, June 2002, pp. 1195-1198.
S. Marchesini, N. Mannella, C. S. Fadley, M. A. Van Hove, J. J. Bucher, D. K. Shuh, L. Fabris, M. J. Press, M. W. West, W. C. Stolte, and Z. Hussain, “Holographic analysis of diffraction structure factors”, Phys. Rev. B 66, 094111 (2002).
J. A. Becker, C. P. Cork, L. Fabris and N. W. Madden, “Portable, low-power, mechanically cooled Ge spectrometer”, Nucl. Instr. and Meth. in Phys. Res. A, (505), 1-2, (2003), pp. 167-169.
K. P. Ziock, M. T. Burks, W. Craig, L. Fabris, E. L. Hull and N. W. Madden, “Real-time generation of images with pixel-by-pixel spectra for a coded aperture imager with high spectral resolution”, Nucl. Instr. and Meth. in Phys. Res. A, (505), 1-2, (2003), pp. 420-424.
K.P. Ziock, W.W Craig, L. Fabris, R.C. Lanza, S. Gallagher, B.K.P. Horn, N.W. Madden, “Large area imaging detector for long-range, passive detection of fissile material”, IEEE Trans. on Nucl. Sci., Vol. 51, Issue 5, Part 1, Oct. 2004, pp. 2238-2244.
R. Wurtz, K.P. Ziock, L. Fabris, R. Graham, “Comparing imaging and non-imaging techniques for reducing background clutter and resolving distant point sources”, IEEE Trans. on Nucl. Sci., Vol. 1, Oct. 23-29, 2005, pp. 338-342.
K.P. Ziock, J.W. Collins, L. Fabris, S. Gallagher, B.K.P. Horn, R.C. Lanza, N.W. Madden, “Source-search sensitivity of a large-area, coded-aperture, gamma-ray imager”, IEEE Trans. on Nucl. Sci., Vol. 53, Issue 3, Part 3, June 2006, pp. 1614-1621.
C J Hailey, T Aramaki, W W Craig, L Fabris, F Gahbauer, J E Koglin, N Madden, K Mori, H T Yu, K P Ziock, “Accelerator testing of the general antiparticle spectrometer; a novel approach to indirect dark matter detection”, Journal of Cosmology and Astroparticle Physics, Vol 2006, Jan 2006.
Cunningham, M.F.; Blakeman, E.; Fabris, L.; Habte, F.; Ziock, K.; , "Active-mask coded-aperture imaging," Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE , vol.2, no., pp.1217-1221, Oct. 26 2007-Nov. 3 2007
H. Fuke, J.E. Koglin, T. Yoshida, T. Aramaki, W.W. Craig, L. Fabris, F. Gahbauer, C.J. Hailey, F.J. Jou, N. Madden, K. Mori, H.T. Yu, K.P. Ziock, “Current status and future plans for the general antiparticle spectrometer (GAPS)”, Advances in Space Research, Volume 41, Issue 12, 2008, Pages 2056-2060
G. Hull, S. Du, T. Niedermayr, S. Payne, N. Cherepy, A. Drobshoff, L. Fabris, “Light collection optimization in scintillator-based gamma-ray spectrometers,” Nucl. Instr. And Meth. In Phys. Res. A, (588), (2008), pp. 384-388.
Ziock, K.P.; Collins, J.; Cunningham, M.; Fabris, L.; Gee, T.; Goddard, J.; Habte, F.; Karnowski, T.; "The Use of Gamma-Ray Imaging to Improve Portal Monitor Performance", Nucl. Sci., IEEE Transactions on Vol. 55, Issue 6, Part 2, Dec. 2008 pp: 3654 – 3664
Ziock, K.P.; Fabris, L.; Carr, D.; Collins, J.; Cunningham, M.; Habte, F.; Karnowski, T.; Marchant, W.; , "A Fieldable-Prototype, Large-Area, Gamma-Ray Imager for Orphan Source Search," Nuclear Science, IEEE Transactions on , vol.55, no.6, pp.3643-3653, Dec. 2008
Hausladen, Paul ; Blackston, Matthew A; Mullens, James Allen; McConchie, Seth M; Mihalczo, John T; Bingham, Philip R ; Ericson, Milton Nance ; Fabris, Lorenzo; “Induced-Fission Imaging of Nuclear Material”, INMM 51st Annual Meeting, Baltimore, MD, USA, 20100711, 20100715
Penny, R.D., Hood, W.E., Polichar, R.M., Cardone, F.H., Chavez, L.G., Grubbs, S.G., Huntley, B.P., Kuharski, R.A., Shyffer, R.T., Fabris, L., Ziock, K.P., Labov, S.E., Nelson, K., “A dual-sided coded-aperture radiation detection system”, Nucl. Instr. And Meth. In Phys. Res. A, vol. 652, issue 1, year 2011, pp. 578 – 581
K.P. Ziock, A. Cheriyadat, L. Fabris, J. Goddard, D. Hornback, T. Karnowski, R. Kerekes, J. Newby, “Autonomous Radiation Monitoring of Small Vessels, Nucl. Inst. and Meth. In Phys. Res., 652 (1), pp.10-15. Oct. 2011.
H. Fuke, J. E. Koglin, T. Yoshida, T. Aramaki, W. W. Craig, L. Fabris, F. Gahbauer, C. J. Hailey, F. J. Jou, N. Madden, K. Mori, H. T. Yu, K. P. Ziock, “Current status and future plans for the general antiparticle spectrometer (GAPS),” Advances in Space Research; 41(12-41):2056-2060, Jan. 2012.
T. Aramaki, S. K. Chan, W. W. Craig, L. Fabris, F. Gahbauer, C. J. Hailey, J. E. Koglin, N. Madden, K. Mori, H. T. Yu, K. P. Ziock, “A Measurement of Atomic X-ray Yields in Exotic Atoms and Implications for an Antideuteron-Based Dark Matter Search,” DOI:10.1016/j.astropartphys.2013.08.003, March 2013.
M. Heffner, V. Riot, L. Fabris, “A Compact, Flexible, High Channel Count DAQ Built From Off-the-Shelf Components,” IEEE Transactions on Nuclear Science; 60(3):2196-2202, June 2013.
B. Ayaz-Maierhafer, J.P. Hayward, K.P. Ziock, M. A. Blackston, L. Fabris, “Angular resolution study of a combined gamma-neutron coded aperture imager for standoff detection,” DOI:10.1016/j.nima.2013.02.005, June 2013.
K. P. Ziock, E. C. Bradley, A. M. Cheriyadat, M. Cunningham, L. Fabris, C. L. Fitzgerald, J. S. Goddard, D. E. Hornback, R. A. Kerekes, T. P. Karnowski, W. T. Marchant, R. J. Newby, “Performance of the Roadside Tracker Portal-Less Portal Monitor,” IEEE Transactions on Nuclear Science; 60(3), June 2013.
B. Ayaz-Maierhafer, J.P. Hayward, K.P. Ziock, M. A. Blackston, L. Fabris, “Transmission and signal loss in mask designs for a dual neutron and gamma imager applied to mobile standoff detection,” DOI:10.1016/j.nima.2013.02.001, June 2013.
L. Fabris et. al. (nEXO Collaboration), “An apparatus to manipulate and identify individual Ba ions
from bulk liquid Xe,” Rev. Sci. Inst. 85, 095114 (2014).
L. Fabris et. al. (nEXO Collaboration), “Spectroscopy of Ba and Ba+ deposits in solid xenon for barium tagging in nEXO,” arXiv:1410.2624 [physics.atom-ph], Oct. 2014.
A. Iyengar, M. Beach, R. J. Newby, L. Fabris, L. H. Heilbronn, J. P. Hayward, “Systematic measurement of fast neutron background fluctuations in an urban area using a mobile detection system,” DOI:10.1016/j.nima.2014.10.045, Nov. 2014.
L. Fabris, et. al. (nEXO Collaboration), “An RF-only ion-funnel for extraction from high-pressure gases,” arXiv:1412.1144 [physics.ins-det], Dec. 2014.
K.P. Ziock, J.B. Braverman, L. Fabris, M.J. Harrison, D. Hornback, J. Newby, “Event localization in bulk scintillator crystals using coded apertures,” DOI:10.1016/j.nima.2015.01.013, Jan. 2015.
L. Fabris et. al. (PixFEL Collaboration), “The PixFEL project: development of advanced X-ray pixel detectors for application at future FEL facilities,” J. Inst., DOI:10.1088/1748-0221/10/02/C02024, Feb. 2015.
L. Fabris et. al. (PixFEL Collaboration), “PixFEL: Developing a fine pitch, fast 2D X-ray imager for the next generation X-FELs,” DOI:10.1016/j.nima.2015.03.022, March 2015.
“Estimating Vehicle Height Using Homographic Projections”, US Patent No. 8,487,993, July 16, 2013.
“Calibration Method for Video and Radiation Imagers”, US Patent No. 7,973,276. July 5, 2011.