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Robert E Vest

Mr. Vest graduated from Brown University in 1991 with a Sc.B in physics. While at Brown, he worked on superconducting edge bolometers for use in solar neutrino detectors. During this time, he also worked on the NIST racetrack microtron and free electron laser project as a control system designer and computer programmer. He came on staff at NIST in 1991 in the far and extreme ultraviolet detector program, making calibration measurements and performing research in the development and characterization of detectors. In 1998 he assumed the leadership of the far and extreme ultraviolet (5 nm to 254 nm) detector program, and in 2011 of the near ultraviolet (200 nm to 500 nm) detector calibration program. He is currently working to transition the EUV program to a newly commissioned synchrotron radiation beamline at SURF III. He continues to perform research in EUV radiometry techniques, technology, and applications and to provide calibration and metrology support to the EUV user community.

In addition to ultraviolet metrology, Mr. Vest contributes metrology experience and expertise in laboratory automation to a broad portfolio of research including the neutron observatory, the development of primary standards for low-flow leak rates and calibrations of leak artifacts, and the calibration program for radiance and radiance temperature. 

Research Interests:

  • Laboratory automation, particularly complex control and data acquisition systems
  • Interaction of Extreme Ultraviolet Radiation and Matter
  • EUV Radiation Detectors and Detection Techniques
  • Radiometry
  • Calibration of EUV Detectors and EUV Scientific Instruments
  • Space-Based Observation Systems
  • Applications of Synchrotron Radiation
  • Detection of Thermal Neutrons with Far Ultraviolet Excimer Emission

Professional Activities:

  • Leader, Far and Extreme Ultraviolet Detector Calibration Program
  • Leader, Near Ultraviolet Detector Calibration Program
  • Member, Optical Society of America
  • Ether-Net Subnet Administrator


  • U.S. Patent No. 8,816,296, "Noble-Gas-Excimer Detectors of Slow Neutrons," 2014
  • Department of Commerce Bronze Medal, 2010
  • R&D 100 Award, 2008
  • NIST William P. Slichter Award, 2007
  • Department of Commerce Bronze Medal, 2004
  • NIST Judson C. French Award, 2001


Broadband Radiometric LED Measurements

George P. Eppeldauer, Catherine C. Cooksey, Howard W. Yoon, Leonard M. Hanssen, Vyacheslav B. Podobedov, Robert E. Vest, Uwe Arp, Carl C. Miller
At present, broadband radiometric measurements of LEDs with uniform and low-uncertainty results are not available. Currently, either spectral radiometric

The New SURF Beamline 3

Robert E. Vest
A new beamline is being commissioned at the Synchrotron Ultraviolet Radiation Facility (SURF III) on the Gaithersburg, MD campus of the National Institute of
Created October 9, 2019