PhD Students

 

 Mr. Mark Norsworthy

mark_picPh.D Candidate

S.M. Nuclear Science and Engineering at the Massachusetts Institute of Technology, 2010

S.B. Nuclear Science and Engineering at the Massachusetts Institute of Technology, 2010

Mark is a Ph.D. student in DNNG researching active-interrogation systems. His undergraduate and master’s research at MIT’s Plasma Science and Fusion Center explored the magnetic properties of holmium for application to superconducting cyclotron accelerators. He has completed internships at one of the Department of Defense Combat Support Agencies, the U.S. Nuclear Regulatory Commission, and the MIT Lincoln Laboratory.

In 2005, Mark was selected as a United States Presidential Scholar and participated in the United States Senate Youth Program. He is a Co-Chair for the 2011 Nuclear Engineering Student Delegation. Mark holds an NNSA Nuclear Nonproliferation and International Safeguards Fellowship.

Projects: Organic scintillator properties and characterization, proton therapy


Mr. Matthew Marcath

Ph.D Candidate

B.S.E. Nuclear Engineering and Radiological Sciences at the University of Michigan, USA, 2012

Matthew joined the DNNG as a UROP student in Fall 2010 to assist with an active measurement campaign. He graduated with a Bachelors degree in 2012 and then interned at the Los Alamos National Laboratory for the summer of that year. He is now a Ph.D. student with the group.

Projects: Nuclear fission cross-correlations and multiplcities, Monte Carlo code development


Mr. Mateusz Monterial

Ph.D Candidate

B.S. Nuclear Engineering and Radiological Sciences at the University of Florida, USA, 2012

Mateusz joined DNNG in September 2012 after completing his undergraduate studies at the University of Florida. He spent a year interning with the Nuclear Security Modeling Group at ORNL. Mateusz is a recipient of the Nuclear Forensics Graduate Fellowship.

Projects: Nuclear fission chain analysis


Mr. Charles Sosa

charlesPh.D Candidate

M.S.E. Nuclear Engineering and Radiological Sciences at The University of Michigan, USA, 2014

B.E. in Mechanical Engineering at City College of New York (CCNY) with a concentration in Nuclear Engineering, USA, 2011

Charles joined DNNG in the fall semester of 2012 and is a recipient of the GEM Ph.D Engineering Fellowship and the Consortium for Verification Technology Fellowship. His interest are in studying optical-photon transport in organic scintillators, both experimentally and computationally with Geant4.

Projects: Organic scintillator geometry, pulse-shape discrimination techniques


Ms. Ciara Sivels

Ph.D Candidate

M.S.E. Nuclear Engineering and Radiological Sciences at the University of Michigan, USA, 2015

S.B. Nuclear Science and Engineering at the Massachusetts Institute of Technology, USA, 2013

Ciara received the B.S. degree in Nuclear Science and Engineering from MIT in 2013. Her research interests generally include nonproliferation and nuclear forensics techniques. Through the GEM fellowship she has interned at PNNL working on projects focused on treaty verification using beta-gamma coincidence detectors. Her graduate research involves the development and analysis of advanced detector systems for radioxenon measurement.

Projects: Radioxenon detection


Mr. Tony Shin

OLYMPUS DIGITAL CAMERAPh.D. Candidate

B.S.E. Nuclear Engineering and Radiological Sciences at the University of Michigan, USA, 2014

M.S.E. Nuclear Engineering and Radiological Sciences at the University of Michigan, USA, 2015

Tony began his research career with DNNG as a SURE undergraduate student in the Summer of 2012. His first research project involved characterizing the angular distribution of spontaneous fission neutrons in Pu-240. As a Ph. D. candidate, Tony’s research focuses on developing analytic models for fissile mass estimation in a fast-neutron multiplicity counting system. His other work includes alternative digital signal processing techniques for improved pulse shape analysis. 

Projects: Fast-neutron multiplicity counter, pulse-shape discrimination techniques, nuclear fission cross-correlations and multiplcities


Mr. Cameron Miller

OLYMPUS DIGITAL CAMERAPh.D. Candidate

B.S.E. Nuclear Engineering and Radiological Sciences at the University of Michigan, USA, 2013

M.S.E. Nuclear Engineering and Radiological Sciences at the University of Michigan, USA, 2014

Cameron joined the DNNG as a SURE student in the Summer of 2011, supporting the investigation of cyclotron based active interrogation. While earning his master’s degree he designed and constructed a shielding system for the Michigan Ion Beam Laboratory. Cameron’s research currently focuses on characterizing stilbene crystals for dose measurements, and simulations for a novel radiography system.

Projects: Active interrogation, radiation dosimeters


Ms. Jennifer Arthur

OLYMPUS DIGITAL CAMERA Ph.D. Candidate

B.S. Nuclear and Radiological Engineering at the Georgia Institute of Technology, USA, 2014

Jennifer is a third year Ph.D. student in the Department of Nuclear Engineering and Radiological Sciences at the University of Michigan. Jennifer joined DNNG in the fall of 2014, when she began participating in an existing research effort investigating the performance of silicon photomultipliers coupled to organic scintillators. She also briefly researched the position sensing capabilities of double-sided stilbene detectors. Jennifer began collaborating with Los Alamos National Laboratory on advanced critical and subcritical neutron multiplication measurements for nuclear data and computational methods validation in the winter of 2016. She currently works at LANL as a GSRA beginning her thesis work in this area. Jennifer is a Consortium for Nonproliferation Enabling Capabilities Fellow.

Projects: Critical and subcritical measurements, Monte Carlo code development


Ms. Crystal Green

Crystal-Green-150x150

Ph.D. Candidate

B.S. Nuclear Engineering at South Carolina State University, USA, 2014 

Crystal Green, a Georgia native, received the B.S. degree in Nuclear Engineering from South Carolina State University in 2014.  Her research interests generally include health and medical physics, specifically in the area of external beam dosimetry. Her graduate research involves the development of chain-of-custody detectors for nuclear materials using integrating optically stimulated luminescence. She enjoys shopping, ballet, and reading.

Projects: Proton therapy


Mr. William Steinberger

wsteinberger-20161207Ph.D. Candidate

B.S. Nuclear Engineering at Rensselaer Polytechnic Institute, USA, 2016

Will graduated from Rensselaer Polytechnic Institute in 2016 with a B.S. in Nuclear Engineering, and joined DNNG that following summer. His research interests include the development of detector systems using silicon photomultipliers (SiPMs) for nonproliferation applications. Currently, his graduate research involves analyzing combinations SiPMs coupled to organic scintillators with varying algorithms to determine which gives the best timing resolution, and which combination of SiPM and organic scintillator have the best pulse shape discrimination capability.

Projects: Handheld Dual-Particle Imager, silicon photomultipliers