Fermilab Leadership


The Fermilab Directorate provides the leadership necessary to support and advance the laboratory's scientific mission. This includes setting lab policy and program direction and ensuring support and funding for Fermilab. The Directorate ensures and oversees compliance with applicable DOE contract requirements, regulations, and laws and establishes and maintains excellent relationships with Fermilab stakeholders.


Nigel Lockyer, director

Fermilab's leadership team is headed by Nigel Lockyer, who holds overall accountability for the performance of the laboratory and fulfillment of the expectations set by the Department of Energy. Lockyer sets the overall scientific strategy for Fermilab, represents the laboratory to external communities, and is the chief spokesperson for the lab as well as an "ambassador" for U.S. particle physics to other countries.

Read Nigel Lockyer's bio


Joseph Lykken, deputy director

Joseph Lykken oversees the research program of the laboratory as the chief research officer and works with the Department of Energy and other key scientific stakeholders to develop the lab's scientific direction. Lykken also serves as the lab's highest-level, internal line-management representative for the DUNE collaboration, Fermilab's long-baseline neutrino initiative.

Read Joseph Lykken's bio


Timothy Meyer, chief operating officer

Timothy Meyer oversees internal labwide activities, functions and infrastructure that support the scientific program and serves as a liaison between Fermilab and the DOE system. Meyer manages the Contractor Assurance System, which crosscuts all the lab's operations, and provides a meaningful summary of performance and compliance to the FRA Board and the Department of Energy. He assists the director in strategic planning, resource management and workforce development.

Read Timothy Meyer's bio


Christopher Mossey, deputy director for the Long-Baseline Neutrino Facility

Christopher Mossey is accountable for the management and execution of the LBNF project at the highest level. He serves as the overall LBNF project director and represents the project to internal and external communities.

Read Christopher Mossey's bio

Senior Laboratory Managers

Inspired by corporate-governance models, Fermilab's senior management is headed by a team of chiefs. Each chief serves a dual role, having line management and budget authority to resources and organizations within the lab while also serving as a spokesperson for Fermilab and an advisor to the laboratory director.


Sergey Belomestnykh, chief technology officer

As CTO, Sergey Belomestnykh provides leadership in planning, directing and overseeing the activities of the Technical Division and provides the lab's technological and technical vision moving forward. He joined the laboratory in 2015. Prior to that he worked at Brookhaven National Laboratory, Cornell University and the Budker Institute of Nuclear Physics. Belomestnykh received his Ph.D. from Budker Institute of Nuclear Physics, is a fellow on the American Physical Society and received the 2015 IEEE Particle Accelerator Science and Technology Award for his achievements in the science and technology of RF and SRF for particle accelerators.


Michael Lindgren, chief project officer

Michael Lindgren is accountable for the successful execution of the laboratory's large suite of projects in tandem with the successful operation of its scientific program. The CPO works across organizational boundaries to facilitate the successful completion of the lab's portfolio of projects and programs alongside the lab's operational commitments. A senior scientist at the laboratory, he was the project manager for the BTeV experiment, head of the CDF Department from 2005 to 2009 and head of the Particle Physics Division from 2009 to 2014. Lindgren received his Ph.D. from the University of California, Riverside, and previously was a research scientist at UCLA.


Alison Markovitz, chief strategic partnerships officer

As CSPO, Alison Markovitz leads externally focused activities key to the success of Fermilab and its flagship project, the Long-Baseline Neutrino Facility and the Deep Underground Neutrino Experiment. Markovitz heads two international groups that support the LBNF/DUNE project, including chairing the Resources Review Board, which is composed of international funding agencies that sponsor LBNF and DUNE. In addition, she oversees the laboratory’s Office of Communication and its government relations activities. Prior to joining Fermilab, she held several leadership positions within the Department of Energy, most recently as senior advisor to Energy Secretary Ernest Moniz and director of the Laboratory Operations Board. She has worked as a deputy associate counsel at the White House and as a lawyer in private practice. Markovitz received a J.D. from Yale Law School.


Martha Michels, chief safety officer

As CSO, Martha Michels is the laboratory's principal agent for planning, implementing and overseeing the programs necessary to maintain safe, healthy, compliant and secure workplace conditions. Michels anticipates and accommodates unique mission needs as they evolve, identifies and advises on risk and mitigations, and recommends environment, safety and health policy and protocols to the laboratory director. Michels joined the laboratory's Occupational Safety and Health Department in 1990, later becoming the senior safety officer in the Particle Physics Division. She served as the lead Enviromental, Safety and Health Department representative on several projects before being chosen to head the laboratory's central ES&H organization. She was appointed Fermilab's CSO in May 2015.


Sergei Nagaitsev, chief accelerator officer

As CAO, Sergei Nagaitsev oversees all of the Fermilab accelerator activities, such as accelerator operations, maintenance, research and development, construction, installation, and commissioning of new accelerator systems. Nagaitsev came to the laboratory in 1995 as a research associate. He holds a Ph.D. in accelerator physics from Indiana University, is a fellow on the American Physical Society and received the 2007 USPAS Prize for his scientific leadership in the demonstration of nonmagnetized relativistic electron cooling of hadron beams to improve collider luminosity.


Vanessa Peoples, chief financial officer

Vanessa Peoples is Fermilab’s chief financial officer and oversees the lab’s finance section, which includes the procurement, accounting and travel departments. She is responsible for all budgeting and financial reporting functions. A certified public accountant, Peoples obtained a B.S. in accounting from Howard University and an M.B.A. from The University of Chicago Graduate School of Business. Prior to joining Fermilab she held the position of assistant vice president for business and finance and chief business officer for the University of Illinois at Chicago. Peoples brings an in-depth knowledge of financial operations and strategic administrative leadership.


Robert Roser, chief information officer

Robert Roser is responsible for both scientific computing and information technology for the lab. Roser's organization ensures that the laboratory's scientific programs have the computing hardware, software, data acquisition and electronics support needed to achieve the optimum level of success and provides the laboratory operations teams with the automated business systems and IT services they require to operate efficiently and effectively. A particle physicist by training, Roser led Fermilab's CDF experiment for most of its second run (2005-2012) before taking on his current role. He has served on numerous scientific advisory panels, the most recent being the Large Hadron Collider Experiment Committee. Roser received his Ph.D. at the University of Rochester and joined the laboratory staff as a Wilson fellow. He is a fellow of the American Physical Society.


Patricia McBride, head of the Fermilab Particle Physics Division

Patricia McBride is head of the Fermilab Particle Physics Division. She is a collaborator on the CMS experiment at the Large Hadron Collider at CERN in Geneva, Switzerland, and managed the U.S. CMS Operations Program, which oversees the U.S. contributions to the CMS experiment. She also led Fermilab’s scientific computing program as deputy head of the laboratory’s Computing Division from 2007-2011. She received her B.S. degree from Carnegie Mellon University and her Ph.D. in physics from Yale University. She served as chair of the Division of Particles and Fields of the American Physical Society and as a member of the APS Public Policy Committee. She was also a vice president of the IUPAP Executive Council. She was elected an APS fellow and a AAAS fellow in 2010.


Steve Brice, head of the Fermilab Neutrino Division

Steve Brice is the head of the Fermilab Neutrino Division. Since coming to Fermilab in 2000, he has held a number of leadership positions, including the head of the Intensity Frontier Department, head of the Neutrino Department, co-spokesperson for the MiniBooNE collaboration, and analysis coordinator for MiniBooNE. He has also served as the chair of the Fermilab Wilson Fellowship Committee, of the URA Thesis Award Committee and of the Organizing Committee for the 2009 International Neutrino Summer School. Brice earned his Ph.D. in physics from Oxford University.


Panagiotis Spentzouris, head of the Fermilab Scientific Computing Division

Panagiotis Spentzouris is head of the Fermilab Scientific Computing Division. He is a collaborator on the MicroBooNE experiment and has been involved in neutrino physics since 1994. His research also includes computational accelerator physics. He has been the principal investigator of the SciDAC Community Project for Accelerator Science and Simulation (ComPASS) since 2005. Spentzouris received his Ph.D. in 1994 from Northwestern University and joined Fermilab as an associate scientist in 1998.


Hema Ramamoorthi, chief of staff for the Office of the Director

Hema Ramamoorthi is chief of staff for the Office of the Director. She is responsible for all business related to the director’s mandate, with special emphasis on U.S. governmental and international relations. Ramamoorthi holds a degree in electronics and instrumentation from Tamil Nadu College of Engineering in India. Before coming to Fermilab, she served for 10 years as social secretary for government relations to the Consul General for India in the Chicago office, where she was responsible for scheduling and logistics for diplomatic events at the Consulate General.

Management system owners

Fermilab is organized into divisions, sections and offices that group similar talents and functions together around common objectives. There is, however, a common set of business functions that cut across the laboratory. To provide insight, consistency and simplified reporting to the Department of Energy, Fermilab recognizes 16 management systems that group common functional responsibilities across the lab. These management systems may be supported by a few individuals or an entire team. Each management system is led by a management system owner who is accountable for developing policies and procedures for common, labwide implementation of the management system.