Skip to main content
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.

Absolute Radiant Flux Measurement of the Angular Distribution of Synchrotron Radiation

Published

Author(s)

Ping-Shine Shaw, Uwe Arp, Keith R. Lykke

Abstract

We have measured the absolute radiant flux of synchrotron radiation as a function of the angle above and below the orbital plane with high accuracy at the Synchrotron Ultraviolet Radiation Facility (SURF III) and the results were compared with theoretical calculation. The radiant flux of synchrotron radiation were measured at effective wavelengths of 256.5 nm, 397.8 nm, and 799.8 nm using three calibrated narrowband filter radiometers with electron energies ranging from 180 MeV to 380 MeV at SURF III. The filter radiometers were positioned inside a beamline with an unobstructed view of synchrotron radiation. The measured radiant flux agrees with theoretical Schwinger formulation to within 0.5 % for angles up to several milliradians.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
9

Keywords

absolute radiant flux, angular distribution, filter radiometer, synchrotron radiation

Citation

Shaw, P. , Arp, U. and Lykke, K. (2006), Absolute Radiant Flux Measurement of the Angular Distribution of Synchrotron Radiation, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed November 30, 2021)
Created July 11, 2006, Updated February 17, 2017