Sara Pozzi

Professor Sara Pozzi’s research interests include the study of nuclear fission and radiation imaging for nuclear materials detection, identification, and characterization. The overarching topics include nuclear nonproliferation, safeguards, and national security. In her fission work, she and her students study the neutron and gamma ray emissions from induced and spontaneous fission, including their energy and angle correlations. In her imaging work, she leads the development of a neutron and gamma ray radiation imager to locate and characterize plutonium. She led many experimental efforts for measurements of uranium and plutonium at Los Alamos National Laboratory, Sandia National Laboratories, Oak Ridge National Laboratory, and the Nevada Nuclear Security Site.

Professor Pozzi is the founding Director of the Consortium for Verification Technology (CVT), a large consortium of 12 universities and 9 national laboratories working together to develop new technologies needed for nuclear treaty verification. In this capacity, she directs the work of 25 faculty members and over 250 students engaged in research projects within the CVT.

Professor Pozzi is a Fellow of the American Nuclear Society and a Fellow of the Institute for Nuclear Materials Management.

Recent Publications

Artificial Neural Network Algorithms for Pulse Shape Discrimination and Recovery of Piled-up Pulses in Organic Scintillators, (F. Cheng, A. Di Fulvio, D. Wentzloff, S.D. Clarke, S.A. Pozzi, H.S. Kim), Annals of Nuclear Energy, 120, 410–421 (2018). https://doi.org/10.1016/j.anucene.2018.05.054

Validating the Performance of Correlated Fission Multiplicity Implementation in Radiation Transport Codes with Subcritical Neutron Multiplication Benchmark Experiments, (J. Arthur, R. Bahran, J. Hutchinson, A. Sood, M. Rising, S.A. Pozzi), Annals of Nuclear Energy, 120, 348-366 (2018). https://www.sciencedirect.com/science/article/pii/S0306454918302883

Development of a Research Reactor Protocol for Neutron Multiplication Measurements, (J. Arthur, R. Bahran, J. Hutchinson, A. Sood, N. Thompson, S. Pozzi), Progress in Nuclear Energy, 106, 120-139 (2018).
https://www.sciencedirect.com/science/article/pii/S0149197018300465

Measured and Simulated 252-Cf(sf) Prompt Neutron-Photon Competition, (M. J. Marcath, R. C. Haight, R. Vogt, M. Devlin, P. Talou, I. Stetcu, J. Randrup, P. F. Schuster, S. D. Clarke, S. A. Pozzi), Physical Review C, 97, 044622 (2018). https://doi.org/10.1103/PhysRevC.97.044622

Correlated Prompt Fission Data in Transport Simulations, (P. Talou, R. Vogt, J. Randrup, M. E. Rising, S.A. Pozzi, J. Verbeke, M.T. Andrews, S.D. Clarke, P. Jaffke, M. Jandel, T. Kawano, M.J. Marcath, K. Meierbachtol, G. Rusev, A. Sood, I. Stetcu, and C. Walker), European Physical Journal A, 54, article 9 (2018). https://doi.org/10.1140/epja/i2018-12455-0

Recent Developments in Deuterated Scintillators for Neutron Measurements at Low-Energy Accelerators, (F.D. Becchetti, R.S. Raymond, R.O. Torres-Isea, A. Di Fulvio, S.D. Clarke, S.A. Pozzi, M. Febbraro), Nucl. Instr. Meth. A, 874, 72-78 (2017). https://doi.org/10.1016/j.nima.2017.08.034

Light Output Response of EJ-309 Liquid Organic Scintillator to 2.86–3.95 MeV Carbon Recoil Ions Due to Neutron Elastic and Inelastic Scatter, (M.A. Norsworthy, M.L. Ruch, M. C. Hamel, S.D. Clarke, P.A. Hausladen, and S.A. Pozzi), Nucl. Instr. Meth. A, 884, 82 - 91 (2018). https://doi.org/10.1016/j.nima.2017.11.084

Organic Scintillator for Real-Time Neutron Dosimetry in Radiation Therapy, (K.A. Beyer, A. Di Fulvio, L. Stolarczyk, W. Parol, N. Mojżeszek, R. Kopec, S.D. Clarke, and S.A. Pozzi), Radiation Protection Dosimetry (2017). https://doi.org/10.1093/rpd/ncx255

Detectors for Active Interrogation Applications, (S.D. Clarke, M.C. Hamel, M.M. Bourne, and S.A. Pozzi), Physics Procedia, 90, 266-270 (2017). https://doi.org/10.1016/j.phpro.2017.09.006

A Review of the Developments of Radioxenon Detectors for Nuclear Explosion Monitoring, (C.B. Sivels, J.I. McIntyre, T.W. Bowyer, M.B. Kalinowski, and S.A. Pozzi), Journal of Radioanalytical and Nuclear Chemistry, 314, 2, pp. 829-841 (2017). https://doi.org/10.1007/s10967-017-5489-2

Neutron and Gamma-Ray Energy Reconstruction for Characterization of Special Nuclear Material, (S.D. Clarke, M.C. Hamel, A. Di Fulvio, and S.A. Pozzi), Nuclear Engineering and Technology, 49, 1354 - 1357, (2017). https://doi.org/10.1016/j.net.2017.06.005

Neutron Multiplicity Counting Moments for Fissile Mass Estimation in Scatter-Based Neutron Detection Systems, (T.H. Shin, M.Y. Hua, M.J. Marcath, D.L. Chichester, I. Pazsit, A. Di Fulvio, S.D. Clarke, and S.A. Pozzi), Nuclear Science & Engineering, 188, 246-269 (2017). https://www.tandfonline.com/doi/abs/10.1080/00295639.2017.1354591