U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST Center for Neutron Research

Source & Instrument Status

reactor

 
Operating at 20 MWAug 21, 2026 - Sept 6, 2026
Maintenance OutageSept 6, 2026 - Oct 13, 2026

NEUTRON BEAM instruments

Center for High Resolution Neutron Scattering (CHRNS) Instruments

Instrument

StatusSchedule
BT9 - Multi-Axis Crystal Spectrometer (MACS)OperatingView Calendar
NG1 - Chromatic Analysis Neutron Diffractometer or Reflectometer (CANDOR)OperatingView Calendar
NG2 - High-Flux Backscattering Spectrometer (HFBS)OperatingView Calendar
NG3 - Very Small Angle Neutron Scattering (vSANS)OperatingView Calendar
NGA - Neutron Spin Echo Spectrometer (ν-NSE)CommissioningView Calendar

Other User Instruments

Instrument

Status

Schedule

BT1 - High Resolution Powder Diffractometer OperatingView Calendar
BT2 - Neutron Imaging FacilityOperatingView Calendar
BT4 - Triple Axis SpectrometerNot Operating Due To Lack of Resources 
BT5 - Ultra-Small Angle Neutron Scattering (uSANS)Not Operating Due To Lack of Resources 
BT7 - Double Focusing Triple-Axis Spectrometer OperatingView Calendar
BT8 - Engineering DiffractometerOperatingView Calendar
NG4 - Disk Chopper Spectrometer (DCS)OperatingView Calendar
NG7 - 30m Small Angle Neutron Scattering (NG7 30m SANS)Transitioning to Scientific OperationsView Calendar
NGA' - Neutron Depth Profiling (NDP)Transitioning to Scientific Operations 
NGB - 10m Small Angle Neutron Scattering (10m SANS)Not Operating Due To Lack of Resources 
NGB - 30m Small Angle Scattering (NGB 30m SANS)OperatingView Calendar
NGD- Polarized Beam Reflectometer (PBR)Not Operating Due To Lack of Resources 
NGD- MAGIK ReflectometerOperatingView Calendar
NG6 - Cold Neutron Imaging Instrument (CNII)Instrument Under DevelopmentOnline in 2027
NG5 - POLAR Cold Triple Axis SpectrometerInstrument Under DevelopmentOnline in 2030

Non-User Instruments

Instrument

Status

Schedule

VT5 - Thermal Prompt-Gamma Activation Analysis (Thermal PGAA)Transitioning to Scientific Operations 
NGC - Neutron LifetimeOperating

 

NGD - Cold Prompt-Gamma Neutron Activation Analysis (Cold PGAA)Operating

 

NG6 - Neutron Physics Test StationInstrument Under Development

 

NG6 - 9 Å BeamlineInstrument Under Development

 

NG7 - Neutron Interferometry & Optics Facility (NIOF)Transitioning to Scientific Operations 
NG7 - Neutron Interferometry & Optics Facility Alpha (NIOFa)Transitioning to Scientific Operations

 

NG7 - Polarized 3He and Detector Experiment Station (PHADES)Transitioning to Scientific Operations

 

NG7 - Alpha Gamma DeviceTransitioning to Scientific Operations 

Contacts

Created February 19, 2026, Updated August 20, 2026
Was this page helpful?