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Last modified by rangeadm on 2025/04/23 16:13
From version 4.1
edited by sndueste
on 2020/02/05 15:18
Change comment: There is no comment for this version
To version 13.1
edited by cpassow
on 2020/09/22 14:05
Change comment: There is no comment for this version

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1 -XWiki.sndueste
1 +XWiki.cpassow
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1 -In order to simulate the temporal and spectral distribution of SASE pulses there is an easy way based random fluctuations filtered spectraly and temporally.
1 +In order to simulate the temporal and spectral distribution of SASE pulses there is an easy way based random fluctuations filtered spectrally and temporally.
2 2  
3 -The only input parameters are the spectral bandwidth and the pulse duration.
3 +The only input parameters are the center wavelength, spectral bandwidth and the pulse duration.
4 4  
5 -Here you can find a small python script (by (% class="twikiNewLink" %)MartinB(%%)) implementing the partial coherence methode as described in Thomas Pfeifer et al. //Partial-coherence method to model experimental free-electron laser pulse statistics,// Opt. Lett. 35, 3441-3443 (2010); [[link to the paper>>url:http://dx.doi.org/10.1364/OL.35.003441||shape="rect"]]
5 +Below you can find a python implementation (by (% class="twikiNewLink" %)MartinB(%%)) of the partial coherence method as described in:
6 6  
7 -The pulse shapes in time AND corresponding spectral dstribution can be easily created with the Jupyter Notebook**[[attach:SASEPulseGenV2.ipynb]]**
7 +(% style="margin-left: 60.0px;" %)
8 +**Thomas Pfeifer et al. //Partial-coherence method to model experimental free-electron laser pulse statistics,// Opt. Lett. 35, 3441-3443 (2010);** [[link to the paper>>url:http://dx.doi.org/10.1364/OL.35.003441||shape="rect"]]
8 8  
10 +==
11 +Examples: ==
9 9  
10 -Some examples of results:
13 +{{markdown LinkifyHeaders="false"}}
14 +[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/git/https%3A%2F%2Fgitlab.desy.de%2Fchristopher.passow%2Fsase-pulses/master?filepath=simulating_SASE_pulses.ipynb)
11 11  
12 -\\
13 13  
14 -[[image:attach:partia__coherence2.png]] or: [[image:attach:image2020-2-5_15-14-4.png||width="480"]]
17 +{{/markdown}}
15 15  
16 16  \\
17 17  
21 +//CentralEnergy=80 # in eV//
22 +
23 +//bandwidth=0.5 # bandwidth in %//
24 +
25 +//dt_FWHM=10, 30., 70  # FWHM of the temporal duration on average//
26 +
27 +
28 +
29 +
30 + [[image:attach:2020-07-07 16_51_14-Window.png||height="250"]]
31 +
18 18  \\
19 19  
34 +[[image:attach:2020-07-07 16_53_22-Window.png||height="250"]]
35 +
36 +[[image:attach:2020-07-07 16_52_27-Window.png||height="250"]]
37 +
20 20  \\
21 21  
22 22  \\
23 23  
24 -Here are the screenshots of the script:
42 +[[attach:GenerateSASE.ipynb]]
25 25  
26 -[[image:attach:partia__coherence1.png]]
44 +[[attach:GenerateSASE.py]]
27 27  
28 28  \\
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32 32  \\
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34 34  \\
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54 +\\