Simple Method For The Determination Of The Characteristic Photon Energy E c Of A Storage Ring By X-Ray Measurement At Photon Energies Around 20 E c .

1 January 1986

proceedings article
Published by SPIE-Intl Soc Optical Eng

Vol. 0733, 86-92
https://doi.org/10.1117/12.964896

Abstract

A spectroscopic method for the determination of the characteristic energy E_c of an electron storage ring is presented, which preferably can be used at VUV storage rings with E_c between 100 eV and some keV. With an energy dispersive photon counter (e.g. a Si(Li)-detector) the spectral photon flux of the synchrotron radiation around 20 E is measured with the intense low energy radiation cut off by filters. As the spectral photon flux at high energies strongly depends on E_c, the characteristic energy can be determined with a small uncertainty. For the electron storage ring BESSY E_c was determined with an uncertainty of 0.25 %. The result is in good agreement with the value of E_c determined from known electron energy W and magnetic induction B in the bending magnet.

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