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Radiometry using synchrotron radiationIt is possible to use synchrotron radiation from electron synchrotrons and electron storage rings as an absolute source, especially in the VUV and soft X-ray regions where other standards are difficult to find. At the NBS, an electron storage ring (SURF-II) has been used to calibrate spectrometers and photometers utilized in solar and aeronomy research and in fusion plasma diagnostics. The radiation incident on these spectrometers can be calculated to uncertainties of 3%, and a technique to exactly determine the number of electrons orbiting in the ring is currently being developed to reduce this uncertainty. Detector calibrations between 5 and 55 nm are routinely performed at SURF-II and transfer standard detectors with 6-10% uncertainties over the range 5-254 nm are supplied.
Document ID
19830032741
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Saloman, E. B.
(National Bureau of Standards Washington, DC, United States)
Ebner, S. C.
(National Bureau of Standards Washington, DC, United States)
Hughey, L. R.
(National Bureau of Standards, Center for Radiation Research, Washington DC, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Ultraviolet and vacuum ultraviolet systems
Location: Washington, DC
Start Date: April 21, 1981
End Date: April 22, 1981
Accession Number
83A13959
Distribution Limits
Public
Copyright
Other

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