Emittance measurements of FEL accelerators using optical transition radiation methods

Emittance measurements of FEL accelerators using optical transition radiation methods

Measurements of the emittance of the Boeing free electron laser accelerator operating at 107 MeV, were performed using optical transition radiation (OTR). The results of the three measurement methods, measurement of beam spot size as a function of magnetic quadrupole focusing strength, two screen be...

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Hauptverfasser: Fiorito, R.B., Rule, D.W., Lumpkin, A.H., Tokar, R.L., Dowell, D.H., Sellyey, W.C., Lowrey, A.R.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Electron accelerators
Electron emission
Electron optics
Free electron lasers
Laser beams
Laser transitions
Optical interferometry
Performance evaluation
Size measurement
Stimulated emission
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Zusammenfassung:Measurements of the emittance of the Boeing free electron laser accelerator operating at 107 MeV, were performed using optical transition radiation (OTR). The results of the three measurement methods, measurement of beam spot size as a function of magnetic quadrupole focusing strength, two screen beam spot measurements, and beam spot-divergence measurements using an OTR interferometer, are compared and shown to be in excellent agreement.< >
DOI:10.1109/PAC.1991.164581