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NIST Center for Neutron Research

Leaders & Organization

 

Leadership & Administration

The NCNR is led by a directorate responsible for the strategic vision, safety, and operational excellence of the facility.

NameRoleFocus Area
James M. AdamsDirectorFacility strategy, operations, and partnerships; licensee for the neutron source.
Thomas NewtonDeputy Director, Chief of Reactor Operations and Engineering (CROE) and Group Leader, Reactor Operations and Engineering (ROE)Facility strategy, NRC regulatory compliance, and technical management of reactor operations and safety systems.
Monyelle MingoExecutive OfficerBusiness operations and planning.
Andrea SzakalSafety CoordinatorOrganizational safety and compliance
Steve DeweyChief of Health PhysicsRadiation safety and regulatory compliance for facility and user activities.
Brian KirbyGroup Leader, Research Facility Operations (RFO)Facility strategy, instrument development, scientific support, and technical facility infrastructure.
Ronald L. JonesGroup Leader, Neutron Condensed Matter Science (NCMS)Scientific strategy, partnerships, education and outreach, instrument operations
Craig M. BrownDirector CHRNS and User Science ProgramNSF partnerships,  education and outreach, user program

Organization & Structure

The NCNR is divided into several specialized groups that manage everything from the physics of the reactor to the software used by visiting scientists.

1. Reactor Operations and Engineering (ROE)

This group is the backbone of the facility, ensuring the neutron source provides a steady, safe source of neutrons for experiments.

  • Operations Team: Led by Randy Strader, focusing on the operation of the 20MW reactor, operator training and qualifications, and emergency and security preparedness.
  • Engineering Team: Led by Andrew Main (A), this team manages reactor design and safety, licensing and compliance, systems and plant engineering, and design and maintenance of the liquid hydrogen cold sources.
  • Aging Reactor Management Team: Led by Andrew Gahan, this team provides mechanical and electrical maintenance, instrument calibration, and surveillance.

2. Neutron Condensed Matter Science (NCMS)

This group focuses on the scientific application of neutron scattering to understand the structure and dynamics of materials.

  • Structure and Dynamics of Materials: Led by Hui Wu, managing Spin Echo, HFBS, Powder Diffraction, Engineering Diffraction.
  • Macromolecular & Microstructural Science: Led by Paul Butler, managing VSANS, 30m SANS (NG7 and NGB), USANS, 10m SANS.
  • Condensed Matter Physics: Led by Nick Butch, managing the Thermal 3-Axis (BT7 and BT4), PoLAR, DCS, MACS.
  • Surfaces and Interfaces: Led by David Hoogerheide, managing CANDOR, MAGIK, PBR.

3. Research Facility Operations (RFO)

This group develops, maintains, and supports advanced neutron measurement capabilities and associated technology for NCNR.

  • Instrument Control Electronics: Led by Nick Maliszewskyj, motors and neutron detectors.
  • Instrument Control Software: Led by Steve Pheiffer, user interfaces for neutron instrument operation.
  • User Services: Led by Yamali Hernandez, sample environment, neutron beam polarization, sample prep labs, and user proposal coordination.
  • Mechanical Engineering Technicians: Led by Doug Johnson, assembly and maintenance of neutron instrumentation and support equipment.
  • Mechanical Engineering: Led by Dan Adler, design for instruments, shielding, and the neutron guide network.
  • Information Technology: Led by Alan Munter, support for facility computer and networking needs.

 

Instrument Contacts

InstrumentContacts
BT1 - High Resolution Powder Diffractometer• H. Wu, 301-975-2387, hui.wu [at] nist.gov (hui[dot]wu[at]nist[dot]gov)
• H. Evans, 301-975-0616, hayden.evans [at] nist.gov (hayden[dot]evans[at]nist[dot]gov)
• C. M. Brown, 301-975-5134, craig.brown [at] nist.gov (craig[dot]brown[at]nist[dot]gov)
BT2 - Neutron Imaging Facility• J. LaManna, 301-975-6809, jacob.lamanna [at] nist.gov (jacob[dot]lamanna[at]nist[dot]gov)
• D. Jacobson, 301-975-6207, david.jacobson [at] nist.gov (david[dot]jacobson[at]nist[dot]gov)
• E. Baltic, 301-975-4842, eli.baltic [at] nist.gov (eli[dot]baltic[at]nist[dot]gov)
• D. Hussey, 301-975-6465, daniel.hussey [at] nist.gov (daniel[dot]hussey[at]nist[dot]gov)
BT4 - Filter-analyzer neutron spectrometer (FANS)• C. M. Brown, 301-975-5134, craig.brown [at] nist.gov (craig[dot]brown[at]nist[dot]gov)
BT4 - Triple-Axis Spectrometer• W. Ratcliff, 301-975-4316, william.ratcliff [at] nist.gov (william[dot]ratcliff[at]nist[dot]gov)
BT5 - Ultra-Small Angle Neutron Scattering (USANS)• J. G. Barker, 301-975-6732, john.barker [at] nist.gov (john[dot]barker[at]nist[dot]gov)
• P. D. Butler, 301-975-2028, paul.butler [at] nist.gov (paul[dot]butler[at]nist[dot]gov)
BT7 - Double Focusing Triple-Axis Spectrometer• Y. Zhao, 301-975-2164, yang.zhao [at] nist.gov (yang[dot]zhao[at]nist[dot]gov)
• W. Ratcliff, 301-975-4316, william.ratcliff [at] nist.gov (william[dot]ratcliff[at]nist[dot]gov)
• N. Butch, 301-975-4863, nicholas.butch [at] nist.gov (nicholas[dot]butch[at]nist[dot]gov)
BT8 - Engineering Diffractometer• T. Gnäupel-Herold, 301-975-5380, thomas.gnaeupel-herold [at] nist.gov (thomas[dot]gnaeupel-herold[at]nist[dot]gov)
BT9 - Multi-Axis Crystal Spectrometer (MACS) (CHRNS)• J. A. Rodriguez-Rivera, 301-975-6019, jose.rodriguez [at] nist.gov (jose[dot]rodriguez[at]nist[dot]gov)
• Y. Qiu, 301-975-3274, yiming.qiu [at] nist.gov (yiming[dot]qiu[at]nist[dot]gov)
VT5 - Thermal Prompt-Gamma Activation Analysis (PGAA)• R. L. Paul, 301-975-6287, rick.paul [at] nist.gov (rick[dot]paul[at]nist[dot]gov)
NGA′ - Cold Neutron Depth Profiling (NDP)• J. Weaver, 301-975-6311, jamie.weaver [at] nist.gov (jamie[dot]weaver[at]nist[dot]gov)
NGA - Neutron Spin Echo Spectrometer (NSE) (CHRNS)• A. Faraone, 301-975-5254, antonio.faraone [at] nist.gov (antonio[dot]faraone[at]nist[dot]gov)
• M. Nagao, 301-975-5505, michihiro.nagao [at] nist.gov (michihiro[dot]nagao[at]nist[dot]gov)
NGB - 10m Small Angle Neutron Scattering (SANS)• P. D. Butler, 301-975-2028, paul.butler [at] nist.gov (paul[dot]butler[at]nist[dot]gov)
NGB - 30m Small Angle Neutron Scattering (nMAT consortium)• J. Seppala, 301-975-2836, jonathan.seppala [at] nist.gov (jonathan[dot]seppala[at]nist[dot]gov)
• K. Weigandt, 301-975-8396, kathleen.weigandt [at] nist.gov (kathleen[dot]weigandt[at]nist[dot]gov)
NGC - Neutron Physics• S. Hoogerheide, 301-975-8582, shannon.hoogerheide [at] nist.gov (shannon[dot]hoogerheide[at]nist[dot]gov)
• H. P. Mumm, 301-975-8355, hans.mumm [at] nist.gov (hans[dot]mumm[at]nist[dot]gov)
• M. S. Dewey, 301-975-4843, maynard.dewey [at] nist.gov (maynard[dot]dewey[at]nist[dot]gov)
• J. Nico, 301-975-4663, jeffrey.nico [at] nist.gov (jeffrey[dot]nico[at]nist[dot]gov)
NGD - Multi-Angle Grazing-Incidence K-vector (MAGIK) Reflectometer• F. Heinrich, 301-975-4507, frank.heinrich [at] nist.gov (frank[dot]heinrich[at]nist[dot]gov)
• S. K. Satija, 301-975-5250, satija [at] nist.gov (satija[at]nist[dot]gov)
NGD - Polarized Beam Reflectometer/Diffractometer (PBR)• C. F. Majkrzak, 301-975-5251, charles.majkrzak [at] nist.gov (charles[dot]majkrzak[at]nist[dot]gov)
• J. Borchers, 301-975-6597, julie.borchers [at] nist.gov (julie[dot]borchers[at]nist[dot]gov)
NGD - Cold Prompt-Gamma Activation Analysis (PGAA)• R. L. Paul, 301-975-6287, rick.paul [at] nist.gov (rick[dot]paul[at]nist[dot]gov)
• H. H. Chen-Mayer, 301-975-5595, heather.chen-mayer [at] nist.gov (heather[dot]chen-mayer[at]nist[dot]gov)
NG1 - Chromatic Analysis Neutron Diffractometer or Reflectometer (CANDOR) (CHRNS)• A. Grutter, 301-975-4198, alexander.grutter [at] nist.gov (alexander[dot]grutter[at]nist[dot]gov)
• D. Hoogerheide, 301-975-8839, david.hoogerheide [at] nist.gov (david[dot]hoogerheide[at]nist[dot]gov)
• B. Maranville, 301-975-6034, brian.maranville [at] nist.gov (brian[dot]maranville[at]nist[dot]gov)
NG2 - High-Flux Backscattering Spectrometer (HFBS) (CHRNS)• M. Tyagi, 301-975-2046, madhusudan.tyagi [at] nist.gov (madhusudan[dot]tyagi[at]nist[dot]gov)
• R. Azuah, 301-975-5604, richard.azuah [at] nist.gov (richard[dot]azuah[at]nist[dot]gov)
NG3 - Very Small Angle Neutron Scattering (vSANS) (CHRNS)• E. Kelley, 301-975-8584, elizabeth.kelley [at] nist.gov (elizabeth[dot]kelley[at]nist[dot]gov)
• Y. Liu, 301-975-6235, yun.liu [at] nist.gov (yun[dot]liu[at]nist[dot]gov)
• J. Gaudet, 301-975-5010, jonathan.gaudet [at] nist.gov (jonathan[dot]gaudet[at]nist[dot]gov) 
• R. P. Murphy, 301-975-8544, ryan.murphy [at] nist.gov (ryan[dot]murphy[at]nist[dot]gov)
• C. Gagnon, 301-975-2020, cedric.gagnon [at] nist.gov (cedric[dot]gagnon[at]nist[dot]gov)
NG4 - Disk Chopper Spectrometer (DCS)• G. Xu, 301-975-4144, guangyong.xu [at] nist.gov (guangyong[dot]xu[at]nist[dot]gov)
• W. Zhou, 301-975-8169, wei.zhou [at] nist.gov (wei[dot]zhou[at]nist[dot]gov)
• C. M Brown, 301-975-5134, craig.brown [at] nist.gov (craig[dot]brown[at]nist[dot]gov)
NG6 - Cold Neutron Imaging Instrument (CNII)• D. Hussey, 301-975-6465, daniel.hussey [at] nist.gov (daniel[dot]hussey[at]nist[dot]gov)
• E. Baltic, 301-975-4842, eli.baltic [at] nist.gov (eli[dot]baltic[at]nist[dot]gov)
• D. Jacobson, 301-975-6207, david.jacobson [at] nist.gov (david[dot]jacobson[at]nist[dot]gov)
• J. LaManna, 301-975-6809, jacob.lamanna [at] nist.gov (jacob[dot]lamanna[at]nist[dot]gov)
NG7 - 30m Small Angle Neutron Scattering (SANS)• S. Teixeira, 301-975-4404, susana.marujoteixeira [at] nist.gov (susana[dot]marujoteixeira[at]nist[dot]gov)
• J. G. Barker, 301-975-6732, john.barker [at] nist.gov (john[dot]barker[at]nist[dot]gov)
• J. Gaudet, 301-975-5010, jonathan.gaudet [at] nist.gov (jonathan[dot]gaudet[at]nist[dot]gov)
• J. R. Krzywon, 301-975-6650, jkrzywon [at] nist.gov (jkrzywon[at]nist[dot]gov)
NG7 - Neutron Interferometer & Optics Facility (NIOF)• M. Huber, 301-975-5641, michael.huber [at] nist.gov (michael[dot]huber[at]nist[dot]gov)
• S. Hoogerheide, 301-975-8582, shannon.hoogerheide [at] nist.gov (shannon[dot]hoogerheide[at]nist[dot]gov)
NG7 - Quantum-Based Neutron Interferometer Facility• M. Huber, 301-975-5641, michael.huber [at] nist.gov (michael[dot]huber[at]nist[dot]gov)
• S. Hoogerheide, 301-975-8582, shannon.hoogerheide [at] nist.gov (shannon[dot]hoogerheide[at]nist[dot]gov)
Other Activation Analysis Facilities• N. Sharp, 301-975-3926, nicholas.sharp [at] nist.gov (nicholas[dot]sharp[at]nist[dot]gov)
• R. L. Paul, 301-975-6287, rick.paul [at] nist.gov (rick[dot]paul[at]nist[dot]gov)
NG7 - Alpha-Gamma Device (α-γ)• M.S. Dewey, 301-975-4843, maynard.dewey [at] nist.gov (maynard[dot]dewey[at]nist[dot]gov)
• H.P Mumm, 301-975-8355, hans.mumm [at] nist.gov (hans[dot]mumm[at]nist[dot]gov)
NG7 - Polarized 3He And Detector Experiment Station (PHADES)• S. Watson, 301-975-6232, shannon.watson [at] nist.gov (shannon[dot]watson[at]nist[dot]gov)

User Office

• J. Keyser, 301-975-8200, julie.keyser [at] nist.gov (julie[dot]keyser[at]nist[dot]gov)
• B. Ogg, 301-975-8200, rebecca.ogg [at] nist.gov (rebecca[dot]ogg[at]nist[dot]gov)

Created February 19, 2026, Updated September 2, 2026
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