Current People

Address general inquiries to: Koeth@umd.edu

Faculty and Staff

Dr. Ned Allen

Adjunct Professor

Edward H “Ned” Allen, took his doctorate at the University of Pennsylvania in multidisciplinary mathematical modeling and systems theory. He is currently studying simulations of nuclear leptonic processes implementable in quantum computers operating in analog mode. Previously he was Chief Scientist at the Lockheed Martin Corporation

 

Dr. Brian Beaudoin

Associate Research Professor

Brian works in the field of charged particle beams, with a specialization in electron guns, electron source, ion sources, and transport of space charge dominated beams.  He is involved in testing electronics under high dose irradiation. Brian is active in undergraduate and graduate-level education in the science and engineering of particle accelerators

 

Dr. Michael Coplan

Professor

My expertise includes Solar Wind Spacecraft Experiments, including Ion Composition Experiment on ISEE-3/ICE, launched August, 1978 and CELIAS Experiment on SoHO, launched December, 1995, Magnetosphere Sounding Rocket Experiments and Laboratory Experiments in Charge exchange of H+, H2+ and He+ with small molecules, and most recently the development of a neutron detector based on the 10B(n, 𝛂)7Li reaction in xenon.

 

 

Dr. Carolyn Chun

Associate Research Professor

Carolyn brings a background in pure mathematics, computer science, and physics to the Koeth Group. She performs mathematical modeling on multiple projects, collaborating with and mentoring undergraduate and graduate students. Carolyn is the Group’s Simulation Leader and is an Associate Research Professor at the University of Maryland, College Park.

 

 

Emily Frashure

Faculty Assistant

Emily Frashure is an incoming Materials Science and Engineering PhD student in the Koeth Group. She received a bachelor’s in Materials Science and Engineering in May 2023 from the University of Maryland and works on the Charge Loaded Dielectric project’s Materials Characterization group. In addition to her project with CLD, she will begin her own research into the effect of neutron radiation on medical polymers and other degradation mechanisms.

 

logo Timothy Koeth

Assistant Professor

Tim Koeth’s research interests are in materials at the extremes, exploring the limits of materials in extreme radiation environments as well as developing materials to produce extreme effects.

 

Alice Mingerey

Professor

Professor Alice Mignerey is a Nuclear Chemist with research programs in basic nuclear science and nuclear forensics and in applications of the nuclear analytical technique of Accelerator Mass Spectrometry (AMS) to environmental and nuclear problems.  Professor Mignerey’s basic nuclear research is focused on understanding the behavior of nuclear matter under conditions of extreme density (pressure) and temperature. These conditions are postulated to have existed just after the Big Bang, when the protons and neutrons had not yet formed from their constituent quarks and the gluons that hold them together.

 

Karen Ocellaris

Faculty Assistant

Karen Ocellaris received her B.S. in Materials Science and Engineering from UMD in 2024. Currently, she works as a faculty assistant in the bulk electrets project, specializing in transmission electron microscopy and ultramicrotomy. She plans to pursue a PhD in Materials Science and Engineering in 2025.

 

Holly Wilson

Director of Operations

Holly received her B.S. in Studio Art in 2017 and B.A. in Physics in 2023 from the University of Maryland, College Park. Before pivoting from art to physics, she started a successful business selling frozen donut holes under the name FroDoh until receiving a cease and desist from the Tolkien estate. Synthesizing art, business, and science, she manages various projects under the Koeth umbrella.

Graduate Students

Claire Brizzolara 

Graduate Student

Claire earned her B.S. in Applied Math with a minor in Computer Science from the University of Delaware in 2023. She then worked at the Naval Surface Warfare Center Carderock Division on radar cross-section simulations in the Naval Research Enterprise Internship Program (NREIP). She is now a Ph.D. student at UMD working on the Bulk Electrets project.

 

Ariana Bussio

Graduate Student

Ariana is a PhD student in the physics department. A few of her main interests are particle & nuclear astrophysics, high density physics, and high energy magnetic fields. Ariana earned a B.S. in Physics from UMD and is also a UCLA graduate with Bachelor of Arts in English and hopes to use her writing skills to increase the effectiveness of science communication.

 

Bryson Clifford

Graduate Student

Bryson received her bachelor’s degrees in Mechanical Engineering (B.S.) and Physics (B.S.) from the University of Louisville in 2019. She completed multiple cooperative education rotations at Honda of America Manufacturing, Inc. and interned at the NASA Langley Research Center in the Advanced Materials Branch before coming to the University of Maryland. Her thesis work in the Koeth group includes exploring the temperature dependence of spatial-charge retention in dielectrics.

 

Noah Hoppis

Graduate Student

Noah Hoppis is a graduate student in the MSE department. He obtained his B.S. in physics at the University of Washington. Noah is leading work on the Bulk Electrets project.

 

Thomas Montano

Graduate Student

Thomas Montano received his B.S. in electrical engineering in 2022 from the Missouri University of Science and Technology, Rolla, MO. He is currently a Ph.D. candidate in electrical engineering at the University of Maryland, College Park, MD. His research focus is in electrophysics, and he is working on simulation and modeling for the spacecraft materials project. He also works as an Electronics Engineer at NASA Goddard Space Flight Center in Greenbelt, MD, as part of the Telecommunication Networks and Technology group.

 

Nick Schwartz

Graduate Student

Nick earned his B.S. from MIT in Mechanical Engineering in 2018, and his Masters in Mechanical Engineering from Imperial College London and the University of Oxford in 2019 and 2020, respectively. As a PhD student, his work focuses on the CMFX project, and he aims to tackle the materials science and mechanical issues that plague fusion energy.

 

Kate Sturge

Graduate Student

Kate earned her B.S. degrees in physics and astronomy from UMD in 2022. She is now a graduate student in the UMD physics department working on the Bulk Electrets project.

 

Meryl Wiratmo

Graduate Student

Meryl is a graduate student in the MSE department. She graduated from the University of Central Florida in 2023 with a B.S. in Materials Science and Engineering. Her research interests include radiation degradation of polymers and polymer characterization. Meryl is currently working in the Characterization subgroup of the Charge Loaded Dielectrics project.

Undergraduate Students

Jack Fitzgibbon

Undergraduate Researcher

Jack is a Materials Science and Engineering major. His primary interests are energetic materials synthesis, high-voltage electronics, and nuclear engineering. His past work involved the synthesis of nitrotetrazolate-based primary explosives and Electrical Bridge-wire Detonators (EBW’s) through his YouTube channel “DBX Labs.” He is an alumnus of the AAMP-UP program at Purdue University and intends to pursue a graduate degree in energetic chemistry.
Ashely Hammell

Undergraduate Researcher

Ashley is a Junior Materials Science and Engineering major. She is primarily involved in the Charge Loaded Dielectrics project focusing on fast imaging and characterization. Currently, she is working on maintaining the group’s radiation detection devices and preparing for a Summer internship with Lockheed Martin Rotary Mission Systems.

 

Raphael Rose

Undergraduate Researcher

Raphael is a sophomore majoring in physics with a special interest in the behavior of materials in extreme electrical environments. He has received a Bachelors in Liberal Arts from St. John’s College in Annapolis in addition to his current degree. Additional research interests include gravitation, cold atom physics and pedagogy. He currently works in the “Bulk Electrets” and “Beryllium 7” research groups.

 

Heather Shannon

Undergraduate Researcher

Heather Shannon is a post-baccalaureate electrical engineering major with a background in mathematics and computer science.  She is interested in the physics and electronics behind communication systems, including aspects of RF engineering, wireless and optical communications, and quantum technology

Affiliates

Ryan Dorman

Educational Content Director

Ryan graduated from the University of Maryland with degrees in Physics and Philosophy, and has been leading the charge on the Koeth Group’s educational series “Cyclotrons!” They are currently working on the next set of episodes focusing on Neutron production in the 12-inch Cyclotron.

 

Mimi Hiebert

Adjunct Faculty Specialist

Miriam Hiebert received her B.S. in Chemistry from the University of Richmond in 2014, and her Ph.D. in Materials Science and Engineering from the University of Maryland in 2019.  Her Ph.D. work focused on the study and preservation of cultural heritage materials in museum settings, particularly glass.  She currently works for the Smithsonian’s National Museum of Natural History as a contract conservation scientist, studying glass alteration as part of a pan-institutional survey of glass collections.  Her work with Professor Koeth has been focused on the study of nuclear history objects, and she recently released her book The Uranium Club. 

 

 

Jay Howson


Affiliate

John “Jay” Howson is a physicist working as a civilian in the NAVY. His role is to lead a team of specialists in operating and maintaining the NAVYs electromagnetic test environment capability. I have an interest in methods to prevent dielectric breakdown in high electric fields.

 

Bill Kolb

Engineering Physicist

My focus is Trinitite (nuclear melt glass from the first atomic bomb) and the use of machine learning to investigate the radionuclides in Trinitite and its provenance.

 

Scott Moroch

Physicist 

Scott graduated from the University of Maryland with his B.S. in Physics in December 2020. He is currently a graduate student at the Massachusetts Institute of Technology.

Email: smoroch@umd.edu