Consortium for Monitoring, Technology, and VerificationNewsletter, 2020

PROF. SARA A. POZZIDirector, Consortium for Monitoring, Technology, and VerificationMTV.engin.umich.edu

MTV Workshop Attendees, March 10, 2020, Ann Arbor, Michigan

University of Hawaii team at the MTV Workshop, March 11, 2020NNSA Administrator Visit , University of Michigan, January 14, 2020

MTV Nuclear Engineering Summer School, Virtual Lecture Student Presentation Awards at the MTV Workshop, March 11, 2020

MTV NE WSLE TTE R, 20202

Prof. Sara PozziDirectorUniversity of Michigan

Dr. Shaun ClarkeAssociate Director University of Michigan

Mr. John RodriquezProject Manager University of Michigan

MTV LeadershipMTV Motivation and Mission • Preventing the spread of nuclear weapons and related technology is paramount to our

national security • Timely detection of nuclear proliferation requires a deep understanding of the associated

signatures and technology to detect them• The MTV’s mission is to develop new technologies that detect and deter nuclear proliferation

activities and to train the next generation of nuclear professionals

Prof. David WeheChief ScientistUniversity of Michigan

External Advisory Board

Dr. Mona DreicerLawrence Livermore National Laboratory

Dr. Richard KouzesPacific NorthwestNational Laboratory

Dr. Nancy Jo NicholasLos Alamos National Laboratory

Dr. Vladimir ProtopopescuOak RidgeNational Laboratory

Dr. James TiedjeMichigan State University

Prof. Igor JovanovicAssoc. Dir. for Natl. Labs University of Michigan

Executive Leadership

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Prof. Igor JovanovicThrust Area 1 Lead

University of Michigan

Prof. Steven BiegalskiThrust Area 2 Lead

Georgia Institute of Technology

Dr. Milton GarcesThrust Area 3 LeadUniversity of Hawaii

THRUST AREA 1 FUNDAMENTALS OF

NUCLEAR AND PARTICLE PHYSICS

THRUST AREA 2 SIGNALS AND

SOURCE TERMS FOR NUCLEAR NONPROLIFERATION

University Partners National Laboratory Partners

Reaction Theory and ModelingS. Pozzi, U Michigan

C. Perfetti, New Mexico

Novel Imaging TechniquesZ. He, U Michigan

D. Wehe, U MichiganA. Hecht, New Mexico

Antineutrino-Based MethodsA. Erickson, Ga Tech

P. Huber, Va Tech.J. Learned, Hawaii

I. Jovanovic, U Michigan

Isotopic ScienceS. Biegalski, Ga Tech. A. Danagoulian, MITM. Flaska, Penn St. U

Spatial/Temporal Spectroscopic Analysis

I. Jovanovic, U Michigan

In Situ Natural Monitoring (biota)

T. Hazen, UTKE. Alm, MIT

A. Arkin, BerkeleyH. Dulai, Hawaii

Nuclear Fuel Cycle Process Modeling

P. Wilson, WisconsinS. Chirayath, TAMUA. Glaser, Princeton

Radiation TransportB. Kiedrowski, U Michigan

A Prinja, UNM

InfrasoundM. Garces, Hawaii

SeismologyG. Ekstrom, ColumbiaP. Richards, Columbia

W-Y. Kim, Columbia

Methodologies for Wide Area

Environmental SamplingK. Hartig, Florida

Radiation Background Monitoring

K. Kearfott, U Michigan

Environmental Fate and Transport

of RadionuclidesA. Enqvist, Florida

RadionuclideS. Pozzi, U Michigan

CROSS CUTTING THRUSTSMODELING AND SIMULATION

Prof. Brian KiedrowskiUniversity of Michigan

NUCLEAR POLICYProf. Paul Wilson

University of Wisconsin

EDUCATION AND OUTREACHProf. Kimberlee Kearfott University of Michigan

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THRUST AREA 3 NUCLEAR

EXPLOSION MONITORING

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Awards & Accomplishments

Lamont-Doherty Earth Observatory seismologist Göran Ekström has been elected to the National Academy of Sciences, one of the highest honors accorded to scientists in the United States. Ekström’s work spans many facets of global earthquake seismology, from the nature of individual earthquakes and other seismic sources to the large-scale structure of the Earth. He joined Columbia University’s Department of Earth and Environmental Scien-ces as a professor in 2006. Ekström leads the Global Centroid Moment Tensor Project (CMT) at Lamont. The goal of that project is to integrate seismic data rapidly from every large earthquake and determine its source characteristics.

Full release: https://www.ldeo.columbia.edu/news-events/seismologist-g%C3%-B6ran-ekstr%C3%B6m-elected-national-academy-sciences

Göran Ekström (photo credit: ldeo.columbia.edu)

Professor Göran Ekström Elected to National Academy of Sciences

MIT Professor Areg Danagoulian and Colleagues Voted 2019 Arms Control Persons of the Year

Professor Areg Danagoulian and colleagues at the Massachusetts Institute of Technology (MIT) were selected as the 2019 Arms Control Persons of the Year through an online poll that drew participants from over 100 countries. The annual contest is organized by the independent, nongovernmental Arms Control Association.

Full release: https://www.armscontrol.org/pressroom/2020-01/mit-professor-areg-danagoulian-colleagues-voted-2019-arms-control-persons-year

Prof. Areg Danagoulian (first row, 2nd from the left) and colleagues at MIT developed an innovative new nuclear disarmament verification process using neutron beams.(photo credit: armscontrol.org)

Recognitions and awards have been given to faculty and students for outstanding performance over the first year of the

Consortium for Monitoring, Technology, and Verification

Prof. Jovanovic is recognized for pioneering contributions to ultrafast parametric sources and intense laser science and technology, and innovative applications of ultrafast lasers to plasma spectroscopy and remote sensing in nuclear security.

From the OSA site:The Optical Society (OSA) Board of Directors has elected 94 members to the society’s 2020 Fellows Class. Fellows are selected based on several factors, including contributions to education, research, engineering, business and the community.

“Being named an OSA Fellow is a singular honor and indicates a history of achievement in optics and photonics, and a reputation for service to OSA and our field,” said OSA President Ursula Gibson. “Congratulations to the 2020 Fellows Class, and our thanks to the OSA Fellow Members Committee, nominators and references for their continued support of this program.”

OSA Fellows are members who have served with distinction in the advancement of optics and photonics. The OSA Fellow Members Committee, led by Aref Chowdhury, Nokia Corporation, U.S.A., reviewed more than 200 nominations submitted by current OSA Fellows and recommended candidates for election to the Awards Council and OSA Board of Directors.

Full release: https://news.engin.umich.edu/2019/11/professor-jovanovic-named-fellow-of-the-optical-society/

MTV NEWSLETTER, 20205

AWARDSProfessor Sara A. Pozzi has been named a Fellow of the Institute of Electrical and Electronics Engineers (IEEE) effective January 1, 2020. She is being recognized for contributions to neutron detection techniques and neutron transport Monte Carlo methods.

The IEEE Fellow is one of the most prestigious honors of the IEEE, and is bestowed upon a very limited number of Senior Members who have contributed importantly to the advancement or application of engineering, science and technology bringing significant value to our society. The number of IEEE Fellows elevated in a year is no more than one-tenth of one percent of the total IEEE voting membership.

To learn more about IEEE or the IEEE Fellow Program, please visit www.ieee.org.

Professor Sara A. Pozzi named IEEE Fellow

Prof. Sara Pozzi demonstrates where nuclear materials are placed within the well counter system developed by her research team at the University of Michigan

Prof. Igor Jovanovic named to the Optical Society 2020 Fellows Class

Igor Jovanovic

Ethan Klein was invited to give a talk at the “74 Years of Nuclear Disarmament and the Contribution of Youth beyond 2020” event at the United Nations Headquarters in New York. Ethan’s talk, titled “Neutrons for Nuclear Disarmament”, was attended by Ms. Izumi Nakamitsu, U.N. Under-Secretary-General and High Representative for Disarmament Affairs, and H.E. Mr. Cho Hyun, Permanent Representative of the Republic of Korea to the United Nations. January 24, 2020

Link: https://www.un.org/disarmament/update/74-years-of-nuclear-disarmament-contribution-of-youth-beyond-2020/

Ethan Klein Ph.D. StudentMassachusetts Institute of Technology(photo: 2nd from right)

MTV NE WSLE TTE R, 20206

ACCOMPLISHMENTSAwards & Accomplishments

MTV Awards Four Fellowships in Applied Antineutrino Physics

Connor AwePh.D. StudentDuke University

Advisor: Prof. Phillip Barbeau

Research statement: My research is focused on novel neutrino detectors and their applications. In particular, I study ways to perform neutrino directional reconstruction as a means of backgrounds rejection. I am also a member of the COHERENT collaboration, where my primary contribution has been measurements of nuclear quenching factors.

Kristofer OgrenPh.D. StudentUniversity of Michigan

Advisor: Prof. Igor Jovanovic

Research statement: I propose a project that is integral to the foundation for this transformational nonproliferation technology– specifically, I will develop, construct, and test deployable prototypes of the critical components of the proposed WATCHMAN calibration system. My work focuses on designing and demonstrating two specific radionuclide calibration sources that have already been identified as promising and high priority by the Calibrations Working Group.

Edward CallaghanPh.D. StudentUC Berkeley

Advisor: Prof. Gabriel Orebi Gann

Research statement: My research interests are generally in the field of neutrino physics. One emergent technology for future detectors is water-based liquid scintillator (WbLS), the promise of which is to achieve higher light yields and a lower energy threshold than conventional Cherenkov detectors, while still retaining usable directional information.

Tyler JohnsonPh.D. StudentDuke University

Advisor: Prof. Phillip Barbeau

Research statement: My research centers around kinematic reconstruction of the originating direction of the neutrino using inverse beta decay products; a principle we coined as “neutrino telescopy.” For my graduate research, I will develop a small-scale time projection chamber neutrino detector capable of extracting neutrino directionality by reconstructing inverse beta decay products with machine learning.

Recognitions and awards have been given to faculty and students for outstanding performace over the first year of the

Consortium for Monitoring, Technology, and Verification

MTV faculty and students welcome Ms. Lisa Gordon-Hagerty, Under Secretary for Nuclear Security of the U.S. Department of Energy (DOE) and Administrator of the National Nuclear Security Administration (4th from right). University of Michigan January 14, 2020.

Prof. Sara PozziUniversity of Michigan

Professor Sara Pozzi receives an Immediate Recognition coin given by NNSA Administrator, Ms. Lisa Gordon-Hagerty on January 14. 2020.

These coins are given to honor, recognize, and award exceptional achievements or performance.

MTV NEWSLETTER, 20207

ACCOMPLISHMENTSUniversity of Michigan welcomes Ms. Lisa Gordon-Hagerty

Jordan NoeyMasters Student University of Michigan

Awarded Health Physics Society Richard J Burk Fellowship, May 14, 2020

Nathan GihaPh.D. StudentUniversity of Michigan

NSF Graduate Research Fellowship, March 2020

MTV NE WSLE TTE R, 20208

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The Consortium for Monitoring, Technology, and Verification (MTV) held a successful annual workshop,March 9 – 11, 2020 at the University of Michigan.

This year’s workshop welcomed 102 participants in person (85) and online (17). The audience included faculty (24) and students (50) from MTV universities as well as national laboratory affiliates (26) and government officials (2).

On March 9, the workshop began with a welcome dinner at the University of Michigan Museum of Art (UMMA). We welcomed keynote speaker Megan Slinkard (photo: top-right), Head of Software Integration at the International Data Centre Division of the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, who discussed the topic “Verification of the CTBT”.

The workshop continued on March 10 and March 11 with opening talks by Randy Bell, NNSA, and an MTV overview by Sara Pozzi, MTV Director. The events continued with technical talks (15) and posters (29), which provided overviews of research accomplishments over the first year of the MTV project. MTV students provided 36 of these presentations including 8 of the presented talks. Four students won best presentation awards (photos above):

• Kelly Traux, Ph.D. Student, University of Hawaii, Best Poster (photo: middle)

• William Steinberger, Ph. D. Student, University of Michigan, Best Poster (photo: bottom-left)

• Niral Shah, Ph. D. Student, University of Michigan, Best Oral (photo: bottom-middle)

• Stefano Marin, Ph.D. Student University of Michigan, Best Oral (photo: bottom-right)

Visit our website to learn more about the workshop presentations.https://mtv.engin.umich.edu/mtv-workshop-2020/

Awards & Accomplishments

MTV Annual Workshop, March 9 - 11, 2020

Long Kiu “Edgar” Chung (photo left) Undergraduate Student University of Michigan

Awarded 2020 Roy G. Post Foundation Scholarship, March 10, 2020

Patrick O’Neal Masters StudentTexas A&M University

Master of Science in nuclear engineering with a specialization in nuclear nonproliferation from Texas A&M University. May 8, 2020

Patrick will be interning as part of the Academic Cooperation Program at Lawrence Livermore National Laboratory. Summer 2020

Noah KleedtkePh.D. StudentUniversity of Michigan

Engineering Innovation Award, Nov. 8, 2019 Engineering Research Symposium at University of Michigan

Emily KwapisPh.D. StudentUniversity of Florida

Awarded Science, Mathematics, and Research for Transformation (SMART) Scholarship-for-Service Program, April 6, 2020

Awarded Office of Nuclear Energy’s Integrated University Program (NEUP) Fellowship, April 14, 2020

Michael HuaPh.D. StudentUniversity of Michigan

2020 Rackham Graduate School Outstanding Graduate Student Instructor Award

2020-2021 American Nuclear Society, Ely M. Gelbard Graduate Scholarship

2019 Best Paper and resentation, American Nuclear Society Winter Meeting, Nuclear Criticality Safety Division

MTV NEWSLETTER, 20209

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Nathan Piersma, University of Michigan, Chihiro Kikuchi Scholarship, April 1, 2020

Keegan Donovan Pombier, University of Michigan, Internship at Idaho National Laboratory, June 1, 2020

Rigoberto Vazquez Jr., Inducted into the Alpha Nu Sigma National Honor Society, March 13, 2020

Tyler Lazarski, University of Michigan, Kearfott KJ. Radiation Weather Station Artificial Intelligence Research”. University of Michigan Undergraduate Research Opportunities Program (UROP) Symposium, Ann Arbor, MI, April 15; 2020. (talk) [Won UM UROP Blue Ribbon Award for Exemplary Research Poster/Presentation]

Samantha Romano, Jordan Noey, Long Kiu Chung, Kearfott KJ. A Quantitative Comparison between Two Large Volume Gamma-Ray Spectrometer Mount Configurations”. University of Michigan Undergraduate Research Opportunities Program (UROP) Symposium, Ann Arbor, MI, April 15; 2020. (poster) [Won UM UROP Blue Ribbon Award for Exemplary Research Poster/Presentation.

Undergraduate Student Accomplishements

Braden Saltus, Undergraduate student, University of Michigan, has developed a virtual model that allows the user to program virtual sources, detectors, and shielding for use in radiation detection simulation.

The bronze sphere close to the user is a measuring tool providing a reading in meters. The blue planes are shielding. The red sphere is a point source, and the brown object on the stand is a detector.

AWARDS

MTV NE WSLE TTE R, 2020 10

Neutrino Directional Detection with Inverse Beta Decay

Quantifying Moss Response to Pollution from Exposure to Increasing Levels of Copper and Uranium using Laser Induced Photoluminescence

40 50 60 70 80 90 100 110 120 130Time of Flight [nS]

10000

15000

20000

25000

30000

35000

Cou

nts

/ nS

hist99_copyEntries 101

Mean 87.27

Std Dev 28.59

Time of flight measurements at the tandem with a zero-degree detector at two distances. Source: C. Awe et. al. “Liquid scintillator response to proton recoils in the 10–100 keV range”. PRC 98, 045802

Connor Awe Ph.D. StudentDuke University

• The CEnNS reaction is for neutrino detection, but produces very low energy nuclear recoils

• The Tandem Van de Graff accelerator at the Triangle Universities Nuclear Laboratory (TUNL) is being applied to scintillator quenching factor measurements

Coherent Elastic Neutrino–Nucleus Scattering (CEνNS) Reaction

• Laser-induced fluorescence (LIF) is used to observe biological changes in mosses exposed to metal

• Measurements of treated and untreated moss samples clearly identify the area exposed to copper using the 532 and 355 nm lasers

• This application will be expanded to detecting moss responses to radionuclide exposure and a corresponding quantification method

Kelly TrauxPh.D. StudentUniversity of Hawaii

RESEARCH HIGHLIGHTSResearch Highlights

MTV NEWSLETTER, 202011

RESEARCH HIGHLIGHTS

Small-Molecule Organic Glass Scintillators

MTV research activities began September 2019

Excitation and detection at 10 m

Single shot detection probability: 52% U I and 40% UO100% detection probability for U I at 35 laser shots (0.44 s)100% detection of UO at 100 laser shots (1 s)

Laser-Based Spectroscopy for Rapid, Remote Detection of Uranium

Lauren FinneyPh.D. StudentUniversity of Michigan

Nathan GihaPh.D. StudentUniversity of Michigan

• Organic scintillating material developed by Sandia National Laboratories

• Cast, not grown

• Brought production capability to our group

• Application to radioxenon detection for nuclear explosion monitoring

MTV Launches a new website!MTV.engin.umich.edu serves as a hub for sharing and disseminating information about MTV research activities and accomplishments to the scientific community and to the public. The website highlights the outstanding work being produced by MTV faculty and students. You will also be able to read more details about the research teams by viewing student and faculty profiles. Additionally, the website provides valuable information about upcoming and past events as well as other opportunities within the consortia.

Prof. Anil Prinja is invited as a guest lecturer for the Monte and Usha Ahuja Distinguished Lecture Series, Ohio State University, Feb. 14, 2020

Talk title: “Modeling Stochastic Neutron Populations with Branching Markov Process Theory”

Anil Prinja invited for the Monte and Usha Ahuja Distinguished Lecture Series

Anil PrinjaUniversity of New Mexico

MTV NE WSLE TTE R, 2020 12

Education and Outreach

MCNP/MCNPX-PoliMi Training WorkshopProf. Brian Kiedrowski (top) and Dr. Shaun Clarke (bottom) at the University of Michigan, Nuclear Engineering and Radiological Sciences department, served as instructors at the 2020 MCNP/MCNPX-PoliMi Training Workshop. This year’s 3-day virtual workshop, held from May 5 to May 7, 2020, welcomed 45 participants interested in learning and developing their skill with this unique code.

Course details and topics can be found online here: https://mtv.engin.umich.edu/mcnp-mcnpx-polimi-workshop-2020/

“Overall terrific workshop. I learned a substantial amount of material that will definitely help with future research projects.”

- MCNP/MCNPX PoliMi Workshop survey

MTV Student Virtual Research Symposium

The 2020 MTV Student Virtual Research Symposium will feature 36 student presentations from June 9 to June 11, 2020. MTV students will provide research updates highlighting their accomplishments from over the past year.

We are excited to have these students represent our consortia to an audience of researchers and scholars from the national laboratories and NNSA leadership.

https://mtv.engin.umich.edu/student-virtual-research-symposium/

2020 National Laboratory FellowsNational Laboratory Fellows receive travel stipends allowing them to visit MTV Universities for the purpose of developing relationships with faculty and students

Awarded Fellow University CollaboratorJonathan Burnett, PNNL...............................Steven Biegalski, Ga. TechRebecca Detwiler, PNNL................................Andreas Enqvist, Univ. FloridaSivanandan Harilal, PNNL............................Igor Jovanovic, Univ. of MichiganJesson Hutchinson, LANL.............................Sara Pozzi, Univ. of MichiganJeffrey Katalenich, PNNL..............................Marek Flaska, Penn State Univ.Wendy Kuhne, SRNL.......................................Henrietta Dulai, Univ. of HawaiiPatrick Talou, LANL.........................................Sara Pozzi, Univ. of MichiganGlenn Warren, PNNL.......................................Areg Danagoulian, MITJennifer Webster, PNNL.................................Sunil Chirayath, TAMUCleat Zeller, NNSS...........................................Goran Ekstrom, Columbia Milton Garces. Univ. of Hawaii Sunil Chirayath, TAMU

National Lab CollaborationsStudents and faculty visit national laboratories for collaboration efforts and research experiments.

Professor Pozzi and her students (photo right) performed correlated fission experiments at Oak Ridge National Laboratory in collaboration with Paul Hausladen.

MTV NEWSLETTER, 202013

“The MTV Summer School allows me to see my individual work in the greater scheme of things by providing a strong foundation of theoretical nuclear engineering and physics.”

- Isabel Hernandez, University of Michigan, Undergraduate Student

MTV Nuclear Engineering Summer School!

12 Weeks

45 Lectures

11Guests

224 Students

Virtual CoursesMay 18 - July 31, 2020

Classes are taught virtually by MTV faculty, national lab collaborators, and senior PhD students.Lectures are designed to benefit students interested in strengthening their research capabilities. This 12-week program covers a range of topics and techniques that benefit student researchers at all academic levels.

Course details and topics can be found online here: https://mtv.engin.umich.edu/mtv-nuclear-engineering-summer-school-2020/

Course topics include: • Nuclear Engineering Background• Gamma Detection• Neutron Detection• Organic Scintillation Detectors• Analyzing Experimental Data (Including special nuclear material!)

Guest Lecturers• Dr. Jorgen Randrup, Lawrence Berkeley National Laboratory• Dr. Alan Carr, Los Alamos National Laboratory• Prof. Igor Jovanovic, University of Michigan• Prof. Alexander Glaser, Princeton University• Prof. Christopher Perfetti, University of New Mexico,• Dr. Alexis Trahan, Los Alamos National Laboratory• Mr. Jesson Hutchinson, Los Alamos Naitional Laboratory• Prof. Angela Di Fulvio, University of Illinois at

Urbana-Champaign• Prof. Anna Erickson, Georgia Institute of Technology• Dr. Erik Brubaker, Sandia National Laboratories• Dr. Ramona Vogt, Lawrence Livermore National Laboratory

Host Lecturers

Dr. Shaun ClarkeU. Michigan

Dr. Cameron MillerU. Michigan

Michael HuaPh.D. StudentU. Michigan

Noora Ba SunbulPh.D. StudentU. Michigan

Stefano MarinPh.D. StudentU. Michigan

William SteinbergerPh.D. StudentU. Michigan

Nathan GihaPh.D. StudentU. Michigan

Abbas JiniaPh.D. StudentU. Michigan

Christopher MeertPh.D. StudentU. Michigan

Prof. Sara PozziU. Michigan

MTV NE WSLE TTE R, 2020 14

2016, LBNL

internship,

BELLA Center

Technical/Program

Analyst, DHS CWMD

2019, PhD Defense

2014, U. Michigan, SUGS

MSE, Nuclear Engineering &

Radiological Sciences

Cameron Miller

2019, MTV associate

2014, Begins PhD

2014, CVT associate

2013, U. Michigan, B.S.

Nuclear Engineering &

Radiological Sciences

2013, Begins UM

Graduate program

For Nuclear Engineering

MTV FellowsGraduate Students.............27Undergraduate Students.....12

MTV AssociatesGraduate Students.............49Undergraduate Students.....44

132 Students Engaged in MTV Research Activities

Student Engagement

Student Advancement Model

0 20 40 60 80

Undergraduate Students, 56

Graduate Students, 76

12

27

44

49

Fellow Associate

132Students

MTV NEWSLETTER, 202015

“Nuclear Safeguards” class at Oak Ridge National Laboratory & Y-12

“Nuclear Safeguards”, Instructor: Prof. Sara Pozzi, 25 students, University of MichiganStudents are introduced to the history of nuclear-material safeguards, nuclear-safeguard techniques, international safeguards policy, and currently used neutron and gamma-ray measurement systems and techniques. Students attend weekly lectures to prepare for a week-long training offered at the Safeguards Laboratory (SL) at Oak Ridge National Laboratory (ORNL).

National Laboratory Engagement

MTV universities regularly host seminars welcoming experts from national laboratories to discuss research opportunities at the national labs and build relationships with faculty and students.

Above: Dr. Alexis Trahan, LANL, discusses opportunities at LANL with students at the University of Michigan, Oct. 3, 2019.

Right: Dr. Marc Paff, LANL, gives a presentation to students at the University of Michigan, Oct 20, 2019.

“Nuclear Safeguards” class on campus at Oak Ridge National Laboratory, October 2019

MTV NE WSLE TTE R, 2020 16

MTV PublicationsPeer Reviewed Publications

reported from Sept. 1, 2019 to March 30, 2020

1. A. Bernstein, N. Bowden, B. L. Goldblum, P. Huber, I. Jovanovic, and J. Mattingly, “Colloquium: Neutrino Detectors as Tools for Nuclear Security”, Reviews of Modern Physics, 92, 011003 (2020). DOI: https://doi.org/10.1103/RevModPhys.92.011003

2. Ezra M. Engel, Ethan A. Klein, A. Danagoulian, “Feasibility study of a compact Neutron Resonance Transmission Analysis instrument,” AIP Advances 10, 015051 (2020). DOI: https://doi.org/10.1063/1.5129961

3. Areg Danagoulian, “Verification of Arms Control Treaties with Resonance Phenomena ,” Nuclear Physics News (2020) invited review article, in press. DOI: https://doi.org/10.1080/10619127.2020.1717271

4. Rafique M, Tareen ADK, Mir AA, Nadeem MSA, Asim KM, Kearfott, KJ. Delegated regressor, a robust approach for automated anomaly detection in the soil radon time series data, Scientific Reports, 10: article 3004, 1-11 (open access), accepted January 27, 2020 DOI: https://doi.org/10.1038/s41598-020-59881-9

5. Champion RJ, Golduber RM, Kearfott KJ, " Use of an Imaging Spectrometer for Characterization of a Cesium Dosimeter Calibration Facility", Health Phys,118(4):462-469, 2020. DOI: 10.1097/HP.0000000000001150

6. Seekamp JM, Noey JD, Kwapis EH, Chung LK, Shubayr NA, Smith T, Trimas DJ, Kearfott KJ, "Design and Characterization of an Extremely Sensitive, Large Volume Gamma Ray Spectrometer for Environmental Samples", Health Phys, submitted June 20, 2019, accepted January 7, 2020. (Winner 2019 Department of Energy Innovations in Nuclear Technology R&D Award) DOI: 10.1097/HP.0000000000001271

7. Noah McFerran, Bonnie Canion, Benjamin McDonald, Jonathan Kulisek, Jonathan Dreyer, Simon Labov, Andreas Enqvist, “Gamma-ray spectrum variations for surface measurements of uranium hexafluoride cylinders”, Nuclear Instruments and Methods A, Vol. 961, p. 163675, 2020, DOI: https://doi.org/10.1016/j.nima.2020.163675

8. S. Marin, V. A. Protopopescu, R. Vogt, M. J. Marcath, S. Okar, M. Y. Hua, P. Talou, P. F. Schuster, S. D. Clarke, and S. A. Pozzi, “Event-by-Event Neutron-Photon Multiplicity Correlations in 252Cf(sf),” Nuclear Instruments and Methods A, Volume 968, 163907 - 2020. DOI: https://doi.org/10.1016/j.nima.2020.163907

9. Alexander Glaser and Moritz Kütt, “Verifying Deep Reductions in the Nuclear Arsenals: Development and Demonstration of a Motion-detection Subsystem for a “Buddy Tag” Using Non-export Controlled Accelerometers,” IEEE Sensors Journal, 2020. DOI: 10.1109/JSEN.2020.2978540

10. A. Haghighat, P. Huber, S. Li. J.M. Link, C. Mariani, Observation of Reactor Antineutrinos with a Rapidly-deployable Surface-level Detector, Phys. Rev. Appl. 13 (2020) 034028. DOI:https://doi.org/10.1103/PhysRevApplied.13.034028

11. M. Y. Hua, C.A. Bravo, A.T. MacDonald, J.D. Hutchinson, G.E. McKenzie, B.C. Kiedrowski, S.D. Clarke, S.A. Pozzi, “Rossi-alpha measurements of fast plutonium metal assemblies using organic scintillators,” Nuclear Instruments and Methods in Physics Research Section A, Accepted on January 20, 2020. https://doi.org/10.1016/j.nima.2020.163507

12. J. Zhou, A. Di Fulvio, K. Beyer, M. Ferrarini, M. Pullia, M. Donetti, S. D. Clarke and S. A. Pozzi, “Angular distribution of neutron production by proton and carbon-ion therapeutic beams,” Physics in Medicine & Biology, Accepted on March 20, 2020. https://iopscience.iop.org/article/10.1088/1361-6560/ab81ca

13. W. M. Steinberger, M. L. Ruch, N. P. Giha, A. Di Fulvio, P. Marleau, S. D. Clarke, S. A. Pozzi, “Imaging of Special Nuclear Material Using a Handheld Dual Particle Imager,” Sci Rep 10, 1855 (2020). https://doi.org/10.1038/s41598-020-58857-z .

14. U. Shirwadkar, E. van Loef, G. Markosyan, J. Tower, M. Spens, C. Ji, L. S. Pandian, A. Gueorguiev, J. Glodo, K. Shah, S. A. Pozzi, S. D. Clarke, W. Langeveld, D. Strellis, J. Garcia, “Low-cost, multi-mode detector solutions”, Nuclear Instruments and Methods in Physics Research Section A, vol. 954, 161289, 2020. https://doi.org/10.1016/j.nima.2018.09.124

15. M. Y. Hua, B. Goddard, C. Lloyd, E. C. Leppink, S. A. Abraham, J. D. Noey, S. D. Clarke, and S. A. Pozzi, “Simulation of the Nondestructive Assay of 237Np using Active Neutron Multiplicity Counting,” Nuclear Science and Engineering, vol. 194, pp. 154-162, 2020. https://doi.org/10.1080/00295639.2019.1654329

16. C. A. Miller, B. Ludewigt, C. Geddes, S. A. Pozzi “Verification of dry storage cask loading using monoenergetic photon sources”, Annals of Nuclear Energy, vol. 137, 2020. https://doi.org/10.1016/j.anucene.2019.107091

17. K. Ogren, J. Nattress, and I. Jovanovic, “Discriminating Uranium Isotopes Based on Fission Signatures Induced by Delayed Neutrons”, Physical Review Applied, in press. arXiv:1911.05812

18. M. Burger, P. J. Skrodzki, L. A. Finney, J. A. Nees, and I. Jovanovic, “Remote Detection of Uranium using Free-Propagating Intense Femtosecond Laser Pulses”, Remote Sensing 12, 1281 (2020).

19. A. Foster, A. Meddeb, M. Wonders, M. Flaska, M. Sharma, Z. Ounaies, and I. Jovanovic, “On the Fabrication and Characterization of Heterogeneous Composite Neutron Detectors with Triple-Pulse-Shape-Discrimination Capability”, Nuclear Instruments and Methods in Physics Research A 954, 161681 (2020).

20. E. J. Kautz, P. J. Skrodzki, M. Burger, B. E. Bernacki, I. Jovanovic, M. C. Phillips, S. S. Harilal, “Time-resolved imaging of atoms and molecules in laser-produced uranium plasmas”, Journal of Analytical Atomic Spectrometry 34, 2236 (2019).

21. M. Burger, P. J. Skrodzki, I. Jovanovic, M. C. Phillips, and S. S. Harilal, “Laser-produced uranium plasma characterization and Stark broadening measurements”, Physics of Plasmas 26, 093103 (2019).

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