| Autor: |
Anup Bhowmik, Wayne A. McMullin, Stephen V. Benson, Philip Metty, Mark S. Curtin, John M. J. Madey, Jeffrey K. Brown |
| Rok vydání: |
1990 |
| Předmět: |
|
| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 296:69-74 |
| ISSN: |
0168-9002 |
| DOI: |
10.1016/0168-9002(90)91191-d |
| Popis: |
The near-infrared Rocketdyne/Stanford free electron laser (FEL) uses a very-high-quality precision undulator whose field strength and field taper are adjustable. The Rocketdyne undulator has been operated in both an amplifier configuration, as in the master-oscillator power amplifier (MOPA) experiments, and an oscillator configuration, as in the photocathode and tapered-undulator experiments. The tapered-undulator experiment was performed at the Stanford Photon Research Laboratory (SPRL) using an electron beam supplied by the Mark III rf-linac, During the experiment we observed sustained oscillations as the undulator magnetic-field taper was continuously tuned from 0% to 10%. We observed /spl equiv/ 1.2% extraction efficiency for a magnetic-field taper of 9.6%. During the same experiment we observed sustained oscillations as the undulator gap was continuously varied over 120 mil. Details of the experiment are presented. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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