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Last modified by sndueste on 2025-09-08 15:36
From version 4.1
edited by sendels
on 2019-05-15 12:26
Change comment: There is no comment for this version
To version 1.1
edited by sendels
on 2019-05-15 09:21
Change comment: There is no comment for this version

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25 25  
26 26  == General Concept ==
27 27  
28 -A large number of parameters which are essential for ALL Experiments is continuously saved (pulse energy, arrival time, Beamline settings ...) in the [[ PHOTONDIAGNOSTIC FLASH DAQ>>doc:FLASHUSER.PBD DAQ]] system.
29 -Other [[experiment related information>>doc:FLASHUSER.Description of the Properties in the FLASH1_USER1, 2 and 3 for FLASH1 Users]] is ONLY saved by the users ON DEMAND in the FLASH DAQ system. To record this type of data we have 3 User DAQs at FLASH1 (FLASH1_USER1,FLASH1_USER2 and FLASH1_USER3) and one at FLASH 2 (FLASH2_USER1)
28 +A large number of parameters which are essential for ALL Experiments is continuously saved (pulse energy, arrival time, Beamline settings ...) in the [[PHOTONDIAGNOSTIC FLASH DAQ>>url:http://hasfweb.desy.de/bin/view/Setup/DAQPbdDescription||shape="rect" class="twikiLink"]] system.
29 +Other [[experiment related information>>url:http://hasfweb.desy.de/bin/view/Setup/DAQExp2Description||shape="rect" class="twikiLink"]] is ONLY saved by the users ON DEMAND in the FLASH DAQ system. To record this type of data we have 3 User DAQs at FLASH1 (FLASH1_USER1,FLASH1_USER2 and FLASH1_USER3) and one at FLASH 2 (FLASH2_USER1)
30 30  How to save this experiment related "User-Data" will be explained briefly in this page:
31 31  
32 32  \\
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48 48  
49 49  \\
50 50  
51 -* By pressing the start and stop button, besides sending the commands to the DAQ the button prints the panel to the respective beamline / experiments logbook. Here you can later on keep track of the runs. Links to the Beamline logbooks can be found [[here>>doc:FLASHUSER.Electronic Logbooks]] (DESY internal link)
51 +* By pressing the start and stop button, besides sending the commands to the DAQ the button prints the panel to the respective beamline / experiments logbook. Here you can later on keep track of the runs. Links to the Beamline logbooks can be found [[here>>url:http://hasfweb.desy.de/bin/view/Setup/ELogs||shape="rect" class="twikiLink"]] (DESY internal link)
52 52  * After starting, the stop button appears only after saving abut 200 shots to prevent too early stopping which may disturb the DAQ.
53 53  * Each run has a unique run number. This number is needed to retrieve the data later on. So it is important to keep track which number is associated to what experimental parameters. Note that the run numbers are used by all FLASH DAQs (currently about 10). It might thus well be, that two consecutive runs from you do have run numbers which are spaced by more than one if another DAQ has been started in-between ...
54 54  
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160 160  
161 161  \\
162 162  
163 -(% class="wrapped" %)
164 164  |(((
165 165  Unix command
166 166  )))|(((
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338 338  \\
339 339  
340 340  * if the DAQ gets stuck in the starting or stopping procedure one can try to initialize the DAQ or in the worst case restart it.
341 -** to be able to restart the DAQ one has to run jddd on the {{code language="none"}}flashlxuser1{{/code}} or {{code language="none"}}flashlxuser2{{/code}} (up to now (Aug 2018) the restat on our consoles (cons0...12) is NOT possible yet [[image:url:http://hasfweb.desy.de/pub/TWiki/SmiliesPlugin/frown.gif||alt="frown"]]) : log in at one of these machines with your beamline account (e.g. bl1user or fl24user). Start jddd with the {{code language="none"}}jFLASH{{/code}} command. Click on "Photons" -> Experimental Hall "Photons main panel"
340 +** to be able to restart the DAQ one has to run jddd on the {{code language="none"}}flashlxuser1{{/code}} or {{code language="none"}}flashlxuser2{{/code}} (up to now (Aug 2018) the restat on our consoles (cons0...12) is NOT possible yet [[image:url:http://hasfweb.desy.de/pub/TWiki/SmiliesPlugin/frown.gif||alt="frown" title="frown"]]) : log in at one of these machines with your beamline account (e.g. bl1user or fl24user). Start jddd with the {{code language="none"}}jFLASH{{/code}} command. Click on "Photons" -> Experimental Hall "Photons main panel"
342 342  ** The DAQ "expert" panel can be reached from the User DAQ control panel.
343 343  [[image:url:http://hasfweb.desy.de/pub/Setup/DAQjddd/DAQ_expert.jpg||alt="DAQ_expert.jpg" width="400" height="350"]]
344 344