Off-axis viewing of radiation emission by long wiggler sources

Off-axis viewing of radiation emission by long wiggler sources

When high-brilliance radiation is needed for experiments, insertion device sources are generally viewed on-axis. Off-axis emission of flux can be prodigious especially from wiggler sources having large emission fans. The on-axis and off-axis radiation emission characteristics from insertion device s...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-09, Vol.649 (1), p.35-38
Hauptverfasser: Berman, L.E., Yin, Z.
Format: Artikel
Sprache:eng
Schlagworte:
Accelerators
BLOWERS
Devices
Emission
Flux
Insertion
Light sources
MATERIALS SCIENCE
Mathematical analysis
national synchrotron light source
NSLS
PARTICLE ACCELERATORS
RADIATIONS
Synchrotrons
Wiggler radiation emission
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Zusammenfassung:When high-brilliance radiation is needed for experiments, insertion device sources are generally viewed on-axis. Off-axis emission of flux can be prodigious especially from wiggler sources having large emission fans. The on-axis and off-axis radiation emission characteristics from insertion device sources have been calculated extensively and are well known, but experimental verifications of some characteristics, particularly those associated with off-axis emission, are relatively few. Here measurements of the flux spectrum and apparent source size are described, as a function of horizontal emission angle, from the former X25 hybrid wiggler at the National Synchrotron Light Source (NSLS).
ISSN:0168-9002
0167-5087
1872-9576
DOI:10.1016/j.nima.2010.12.245