Last modified by sndueste on 2024/03/13 14:48
From version 10.1
edited by sendels
on 2021/02/10 15:09
Change comment: There is no comment for this version
To version 6.1
edited by sndueste
on 2020/01/20 11:14
Change comment: There is no comment for this version

Summary

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1 -XWiki.sendels
1 +XWiki.sndueste
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1 -(% class="twikiTocTitle" %)Content
1 +==
2 +(% class="twikiTocTitle" %)Contents(%%) ==
2 2  
3 3  
4 4  
5 5  {{toc/}}
6 6  
8 +\\
9 +
7 7  == Introduction ==
8 8  
9 9  At FLASH photons are delivered with a special pulse structure:
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21 21  * using a provided program (AdvancedIDServer.exe) running on the user's machine, that synchronizes with the Train ID sender and uses the local clock of the user computer to lower the jitter in reading the ID significantly. The user program connects then locally to the AdvancedIDServer program to get the ID ...
22 22  * direct reading of the ID via TCP socket
23 23  
24 -[[image:attach:aids_principle.png||height="400"]]
25 -
26 -
27 +[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/TrainID/aids_principle.png~|~|alt="aids_principle.png" width="440" height="289"~]~]>>attach:aids_principle.png]]
27 27  Basic pinciple of Train ID distribution at Flash1 with TIDS and AIDS
28 28  
29 29  See also this [[sketch>>attach:timing.png]] of the sequence with miliseconds attached to it, to see when the ID updates relative to the beam.
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38 38  
39 39  It connects to the TCP based TIDY or TIDS server and continuously gets the Ethernet packets with the IDs. These packets are time stamped with microsecond resolution and stored. This runs all the time. Because we have a lot of data we can correlate the local time on that machine (that generated the local time stamps) and the IDs. If the Ethernet connection lags sometimes, chokes, hick ups and messes around with our packets, even drops some... Who cares. By closely monitoring all data we can define a function to calculate the Train ID from the local time on that machine.
40 40  
41 -[[image:attach:AIDS_running.png||height="189"]]
42 +[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/TrainID/AIDS_running.png~|~|alt="Advanced ID Server running"~]~]>>attach:AIDS_running.png]]
42 42  
43 -\\
44 +* Short presentation by Fini
44 44  
45 45  Here it is running on Windows, but of course you can also use it on your Linux machine (build it from the source).
46 46  
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151 151  
152 152  Do not enable "fast shutter eventIDs" if you want to use the Advanced ID Server.
153 153  
154 -[[image:attach:Clipboard02.png||height="400"]]
155 +[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/TrainID/Clipboard02.png~|~|alt="Clipboard02.png" width="470" height="420"~]~]>>attach:Clipboard02.png]]
155 155  
156 -\\
157 -
158 158  The TIDY: known issues also apply here.
159 159  
160 160  [[Contents>>doc:||anchor="Contents"]]