Timeline for What exactly is the difference between a sychrotron light source and a free electron laser?
Current License: CC BY-SA 3.0
11 events
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| Jun 4, 2020 at 16:03 | history | edited | CommunityBot |
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| Feb 9, 2013 at 20:27 | comment | added | Terry Bollinger | I know we're not supposed to add comments saying "That's a really nice answer," but... that's a really nice answer! :) | |
| Feb 8, 2013 at 5:17 | comment | added | anna v | Thanks. Bunches are the way the accelerators shape their beam. Accelerator technology.lhc-closer.es/php/index.php?i=1&s=4&p=19&e=0 . There will be synchrotron radiation in time phase with the bunches . | |
| Feb 7, 2013 at 21:06 | comment | added | krfkeith | I went ahead and marked your answer as accepted, thanks so much! :) I'm curious why you say bunches are another story, but I wonder if that question might be better suited to another post entirely. | |
| Feb 7, 2013 at 21:05 | vote | accept | krfkeith | ||
| Feb 7, 2013 at 20:15 | comment | added | anna v | Actually coherence is justified in the quote I copied. " Since the electron motion is in phase with the field of the light already emitted, the fields add together coherently. " Bunches are another story . | |
| Feb 7, 2013 at 20:13 | comment | added | anna v | @krfkeith Sorry, no, no more than the article in the link.If you follow the links in there your curiosity can be satisfied. | |
| Feb 7, 2013 at 20:00 | comment | added | krfkeith | Could you elaborate on how the FEL creates a coherent beam? I understand there is clearly a difference, but synchrotron light sources use insertion devices too, right? Does it have anything to do with electron "bunching?" How are bunches formed/the e-beam modulated? How does it differ in either case? How does a wiggler differ from an undulator? | |
| Feb 7, 2013 at 15:40 | comment | added | anna v | @dmckee well, it is not my drawing :) | |
| Feb 7, 2013 at 15:17 | comment | added | dmckee --- ex-moderator kitten | Nice answer. There is one issue with the FEL figure, however: the artist has drawn the beam turning sharply to get out of the way after leaving the wiggler. In practice that would generate a lot of synchrotron radiation messing with the purity of the beam so in practice it is steered away a soon as possible after the wiggler, but rather more gently than is diagrammed. | |
| Feb 7, 2013 at 14:49 | history | answered | anna v | CC BY-SA 3.0 |