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Last modified by rangeadm on 2025/04/23 16:13
From version 16.1
edited by cpassow
on 2020/09/22 14:11
Change comment: There is no comment for this version
To version 3.1
edited by sendels
on 2019/08/23 08:24
Change comment: There is no comment for this version

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1 -XWiki.cpassow
1 +XWiki.sendels
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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 spectrally and temporally.
1 +Here you can find a small python script (by (% class="twikiNewLink" %)[[MartinB>>url:http://hasfweb.desy.de/bin/edit/Setup/MartinB?topicparent=Setup.PartialCoherenceSimulation;nowysiwyg=0||rel="nofollow" shape="rect"]](%%)) implementing the partial coherence methode as described in Thomas Pfeifer, Yuhai Jiang, Stefan Düsterer, Robert Moshammer, and Joachim Ullrich, 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"]]
2 +\\\\Simulations like this:
2 2  
3 -The only input parameters are the center wavelength, spectral bandwidth and the pulse duration.
4 +[[image:attach:partia__coherence2.png]]
4 4  
5 -Below you can find a python implementation (by (% class="twikiNewLink" %)MartinB(%%)) of the partial coherence method as described in:
6 +\\
6 6  
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"]]
9 -
10 -==
11 -Examples: ==
12 -
13 -[[~[~[image:attach:binder_badge.png~|~|thumbnail="true" width="150"~]~]>>attach:binder_badge.png]]
14 -
15 -//CentralEnergy=80 # in eV//
16 -
17 -//bandwidth=0.5 # bandwidth in %//
18 -
19 -//dt_FWHM=10, 30., 70  # FWHM of the temporal duration on average//
20 -
21 -
22 -
23 -
24 - [[image:attach:2020-07-07 16_51_14-Window.png||height="250"]]
25 -
26 26  \\
27 27  
28 -[[image:attach:2020-07-07 16_53_22-Window.png||height="250"]]
29 29  
30 -[[image:attach:2020-07-07 16_52_27-Window.png||height="250"]]
11 +
12 +\\can be easily created with the script ( the script can be downloaded in the attachment table below):
31 31  
32 32  \\
33 33  
34 34  \\
35 35  
36 -[[attach:GenerateSASE.ipynb]]
37 -
38 -[[attach:GenerateSASE.py]]
39 -
40 40  \\
41 41  
42 42  \\
43 43  
44 -\\
22 +[[image:attach:partia__coherence1.png]]
45 45  
46 46  \\
47 47  
48 -\\
26 +[[attach:SASEPulseGenV2.ipynb]]
27 +
28 +Jupyter Notebook