Paul K. Kearns has served as Director of the U.S. Department of Energy’s Argonne National Laboratory since 2017. Kearns manages a growing multidisciplinary science and engineering research center with a $1.2 billion diversified research portfolio and more than 3,300 employees, 8,000 facility users, and 800 visiting researchers. Kearns served as Argonne chief operations officer from 2010 to 2017.
Deputy Laboratory Director for Operations/Chief Operations Officer
Kim Sawyer is responsible for leading and driving the strategies and actions to achieve efficient, effective, and safe operations at Argonne. Leveraging her extensive experience within the national laboratories, the Department of Energy, and the private sector, Kim works with leaders across the laboratory to continuously improve the services that support Argonne’s world-changing science, technology, and engineering.
Joint Appointment/Interim Deputy Laboratory Director for Science & Technology
Matthew Tirrell is the interim deputy laboratory director for science and technology, chief research officer, science strategist, and advisor. In this role, he works with the laboratory director and associate laboratory directors to develop and shepherd Argonne’s scientific and technical portfolio and to articulate the Laboratory’s strategic priorities including through the development of Argonne’s Office of Science Annual Laboratory Plan.
Laurent Chapon is Argonne’s Associate Laboratory Director for Photon Sciences. He also directs the Advanced Photon Source (APS), a U.S. Department of Energy (DOE) Office of Science user facility at Argonne.
Associate Laboratory Director for Science & Technology Partnerships and Outreach
Megan C. Clifford is Associate Laboratory Director for Science and Technology Partnerships and Outreach. Her focus areas in this role include: maximizing outcomes of existing collaborations and partnerships; supporting the creation of new collaborations and partnerships; and support of lab-wide strategy and program development – all with the goal of increasing the impact of Argonne’s work.
Seth B. Darling is the Interim Associate Laboratory Director of the Advanced Energy Technologies Directorate at Argonne National Laboratory and also serves as the directorate’s Chief Science & Technology Officer.
Kawtar Hafidi is Associate Laboratory Director for Physical Sciences and Engineering. She oversees five Argonne research divisions and two U.S. Department of Energy user facilities conducting fundamental and applied research in nuclear and high energy physics, materials science, chemical science and engineering, and nanoscience and technology.
Jim Kerby is the Project Director of the Advanced Photon Source (APS) Upgrade at Argonne. Kerby oversees the planning, construction, and implementation of the upgrade. The APS is a DOE Office of Science User Facility. This $815 million project will create the world’s most advanced three-dimensional hard X-ray microscope and enable researchers to view and manipulate matter at the atomic level to solve complex science problems across multiple disciplines.
Dr. Laurin-Kovitz is Associate Laboratory Director for Nuclear Technologies and National Security. She leads an organization that supports a secure and resilient society by advancing nuclear energy and delivering innovative, objective science- and engineering-based solutions to inform decision making.
Associate Laboratory Director and Argonne Distinguished Fellow
Rick Stevens is Associate Laboratory Director for Computing, Environment and Life Sciences (CELS). He oversees a research program that connects computing to several areas of inquiry, and heads Argonne’s research initiatives for both exascale computing and computational biology.
Stu Hannay is Chief Information Officer and Senior Director of Argonne National Laboratory’s Business Information Services Directorate. BIS executes a strategy of business transformation through technology processes, platforms and systems including: applications development, delivery, and support; infrastructure; telecommunications; library services; knowledge management; cyber security; and business intelligence to enable data-driven decision-making.
Karen Hellman is Senior Director of Argonne’s Infrastructure Services directorate, which provides strategic site stewardship through infrastructure planning and modernization; project management; facilities management, including nuclear facilities; waste management; site services; and security and emergency management.
Tim Knewitz is Argonne National Laboratory’s Chief Financial Officer and Senior Director of Argonne’s Financial Management and Procurement Services directorate. Tim has extensive experience working with the U.S. Department of Energy and the national lab complex, and is a member of the National Laboratories CFO Executive Council. He was at Sandia National Laboratories for 30 years, where he served as the Chief Financial Officer since 2017. Tim is a Certified Public Accountant. He has Master of Accountancy and Bachelor of Accountancy degrees from New Mexico State University.
Chief Communications Officer/Senior Director of Communications & Public Affairs
Leslie Krohn joined Argonne National Laboratory in 2018 to lead the Communications and Public Affairs division. Prior to working at Argonne, Leslie held leadership roles in communications and marketing at Nielsen, Sara Lee, GE and Accenture. She earned a Master of Science in Integrated Marketing Communication at Northwestern University’s Medill School of Journalism, and a bachelor’s degree in American Studies from the University of Notre Dame.
Julie Nuter is Chief Human Resources Officer and Senior Director of Argonne National Laboratory’s Human Resource Services Directorate. HRS oversees the laboratory’s talent strategy, seeking to attract and retain the people the lab needs to excel; sustain a diverse and inclusive culture that helps the lab succeed and thrive; and inspire the next generation of scientists and engineers through educational programs.
Dan Raker is the Laboratory’s Acting General Counsel. Since joining Argonne in 2008, he has represented Argonne in external legal proceedings and advised Laboratory management on a broad array of legal and compliance issues related to labor and employment and the administration of Argonne’s Prime Contract with the Department of Energy.
Daniel Walsh is the Chief Security Officer and Director of the Safeguards and Security (SAS) Division at Argonne National Laboratory. In this role, Daniel oversees the safety of our people, visitors, facilities and information. He leads a matrixed, cross-functional security organization comprised of classified programs, nuclear materials safeguards, physical security, personnel security, and cyber security, in partnership with counterintelligence, and national security field intelligence.
Nazia Zakir provides leadership and vision in managing Argonne’s environment, safety, and health (ESH) initiatives to support the Laboratory’s mission and enable exemplary safety performance. She leads a laboratory-wide environmental, safety, and health program encompassing best practices, certifications, standards, guidance, procedures, and management systems. She also manages Argonne’s Fire Department, Office of Emergency Management, and Health and Wellness Program, which includes the Occupational Medical Clinic.