Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

The New SURF Beamline 3

Published

Author(s)

Robert E. Vest

Abstract

A new beamline is being commissioned at the Synchrotron Ultraviolet Radiation Facility (SURF III) on the Gaithersburg, MD campus of the National Institute of Standards and Technology (NIST). SURF III is a 380-MeV synchrotron radiation source providing continuum radiation from the soft x-rays to the infrared. The new beamline is a single facility for ultraviolet measurements spanning the spectral region from near 3 nm (about 400 eV) to 400 nm (3.1 eV). The design of the monochromator allows high-throughput, on-blaze operation over most of this spectral region, with the configuration changing from grazing-incidence at short wavelengths to normal incidence at long wavelengths. NIST will perform calibrations of photodetector responsivity, filter transmission, mirror reflectivity, and other optical characterizations from the extreme ultraviolet into the blue. The beamline provides sufficient optical power to perform radiometric scale realizations with a cryogenic radiometer and can serve as the U.S. national primary measurement standard for detector responsivity throughout the ultraviolet. These diverse capabilities over such a wide spectral range will consolidate the activities of several other calibration and measurement facilities currently in operation within the Ultraviolet Radiation Group.
Conference Dates
May 16-18, 2016
Conference Location
Gaithersburg, MD
Conference Title
CORM 2016

Keywords

ultraviolet, radiometry, synchrotron radiation, SURF III
Created May 18, 2016, Updated September 28, 2017