APS undulator radiation [electronic resource] : First results
- Published
- Washington, D.C. : United States. Dept. of Energy, 1995.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 17 pages : digital, PDF file
- Additional Creators
- Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The first undulator radiation has been extracted from the Advanced Photon Source (APS). The results from the characterization of this radiation are very satisfactory. With the undulator set at a gap of 15.8 mm (K=1.61), harmonics as high as the 17th were observed using a crystal spectrometer. The angular distribution of the third-harmonic radiation was measured, and the source was imaged using a zone plate to determine the particle beam emittance. The horizontal beam emittance was found to be 6.9 ± 1.0 nm-rad, and the vertical emittance coupling was found to be less than 3%. The absolute spectral flux was measured over a wide range of photon energies, and it agrees remarkably well with the theoretical calculations based on the measured undulator magnetic field profile and the measured beam emittance. These results indicate that both the emittance of the electron beam and the undulator magnetic field quality exceed the original specifications.
- Report Numbers
- E 1.99:anl/xfd/cp--87844
E 1.99: conf-9510119--18
conf-9510119--18
anl/xfd/cp--87844 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
12/31/1995.
"anl/xfd/cp--87844"
" conf-9510119--18"
"DE96006699"
SRI `95: synchrotron radiation instrumentation symposium and the 7. users meeting for the advanced photon source (APS), Argonne, IL (United States), 16-20 Oct 1995.
Dejus, R.J.; Cai, Z.; Hartog, P.D. - Funding Information
- W-31109-ENG-38
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