Name: Workshop on Single Pass, High Gain FELs Starting from Noise Aiming at Coherent X-Rays
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Created at: Fri Jul 27 23:53:35 -0700 2007
Updated at: Fri Jul 27 23:53:35 -0700 2007
Edit | Back | Add Paper| title: | Measurements of high gain and noise fluctuations in a SASE free electron laser |
| format: | conference procceeding |
| conference: | Workshop on Single Pass, High Gain FELs Starting from Noise Aiming at Coherent X-Rays |
| year: | 1997 |
| 12 authors: | | | | | | | | | | | | |
| abstract: | We report measurements of large gain for a single pass Free Electron Laser operating in Self Amplified Spontaneous Emission (SASE) at 16 mu m starting from noise. We also report the first observation and analysis of intensity fluctuations of the SASE radiation intensity in the high gain regime. The results are compared with theoretical predictions and simulations. (11 References). |
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| title: | Numerical study of X-ray FELs including quantum fluctuation |
| format: | conference procceeding |
| conference: | Workshop on Single Pass, High Gain FELs Starting from Noise Aiming at Coherent X-Rays |
| year: | 1997 |
| 4 authors: | | | | |
| abstract: | One of the fundamental limitations towards achieving very short wavelength in a self amplified spontaneous emission free electron laser (SASE FEL) is connected with the energy diffusion in the electron beam due to quantum fluctuations of undulator radiation. Parameters of the LCLS and TESLA X-ray FEL projects are very close to this limit and there exists necessity in upgrading FEL simulation codes for optimization of SASE FEL for operation at a shortest possible wavelength. In this report we describe a one-dimensional FEL simulation code taking into account the effects of incoherent undulator radiation. Using similarity techniques we have calculated universal functions describing degradation of the FEL process due to quantum fluctuations of undulator radiation. |
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| title: | Where do we stand with high gain FEL simulations? |
| format: | conference procceeding |
| conference: | Workshop on Single Pass, High Gain FELs Starting from Noise Aiming at Coherent X-Rays |
| year: | 1997 |
| 1 author: | |
| abstract: | Computer technology improvements have allowed for more complete and detailed free electron laser simulations, yet the demands of the large number of new experiments and proposed projects has outpaced the capability and availability of present codes. The paper, based on a talk given at the conference of these proceedings, presents a brief assessment of Free Electron Laser (FEL) codes, their availability and features, as well as some opinions on what direction the FEL code community should take for the near future. The discussion of FEL codes is restricted here to ones for high gain amplifiers: no codes for oscillators, waveguides or exotic configurations are considered. (6 References). |
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