Changes for page DAQ and data analysis

Last modified by sndueste on 2025/02/05 14:56
From version 34.1
edited by sndueste
on 2025/02/05 11:21
Change comment: Renamed back-links.
To version 32.1
edited by sndueste
on 2024/03/13 16:53
Change comment: There is no comment for this version

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Title
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1 -DAQ and data analysis
1 +DAQ and controls overview
Content
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120 120  
121 121  == Data acquisition ==
122 122  
123 -Relevant machine data, e.g. pulse energy or arrival time, are are saved in the FLASH Photon diagnostics DAQ (PBD) while experiment related parameter are saved on demand in the FLASH [[User DAQs>>doc:FLASHUSER.Data Acquisition and controls.DAQ and controls overview.Offline data analysis (DAQ).How to save data in the User DAQ.WebHome]]. In addition it is disk space availabe for devices and paramter outside the FLASH DAQ, which can be [[ synchronized via Ethernet connection>>doc:FLASHUSER.Data Acquisition and controls.Controls (DOOCS, jDDD,\.\.\.).How to read Train IDs at FLASH.WebHome]]. The for the beamtime provided storage space, the [[spectrum scale>>url:https://confluence.desy.de/display/ASAP3/Architecture||shape="rect"]] formerly known as ASAP3/GPFS, is access regulated via [[DOOR>>url:https://door.desy.de/door/index.php||shape="rect"]] and only registered participants have access.
123 +Relevant machine data, e.g. pulse energy or arrival time, are are saved in the FLASH Photon diagnostics DAQ (PBD) while experiment related parameter are saved on demand in the FLASH [[User DAQs>>doc:FLASHUSER.Data Acquisition and controls.Data Access at FLASH (DAQ, gpfs,\.\.\.).Offline data analysis (DAQ).How to save data in the User DAQ.WebHome]]. In addition it is disk space availabe for devices and paramter outside the FLASH DAQ, which can be [[ synchronized via Ethernet connection>>doc:FLASHUSER.Data Acquisition and controls.Controls (DOOCS, jDDD,\.\.\.).How to read Train IDs at FLASH.WebHome]]. The for the beamtime provided storage space, the [[spectrum scale>>url:https://confluence.desy.de/display/ASAP3/Architecture||shape="rect"]] formerly known as ASAP3/GPFS, is access regulated via [[DOOR>>url:https://door.desy.de/door/index.php||shape="rect"]] and only registered participants have access.
124 124  
125 125  The FLASH DAQ system records the data in binary .raw files. On request the data will also be available in the HDF5 format after a conversion during or after the beamtime. Incoming data is collected, sorted and saved into .raw files in chunks of 60 MB to 1 GB which corresponds to tens of seconds up to several minutes. The HDF5 files can be created nearOnline or Offline. In the nearOnline conversion every individual .raw files will be converted to a single HDF5 file to provide the fastest access possible.
126 126  
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131 131  |=(((
132 132  [[DAQ introductions>>attach:Operator_training_DAQ_May_2016.pdf]]
133 133  )))|=(((
134 -[[User DAQs>>doc:FLASHUSER.Data Acquisition and controls.DAQ and controls overview.Offline data analysis (DAQ).How to save data in the User DAQ.WebHome]]
134 +[[User DAQs>>doc:FLASHUSER.Data Acquisition and controls.Data Access at FLASH (DAQ, gpfs,\.\.\.).Offline data analysis (DAQ).How to save data in the User DAQ.WebHome]]
135 135  )))|=(((
136 136  [[HDF5 files>>doc:FLASHUSER.Data Acquisition and controls.Data Access at FLASH (DAQ, gpfs,\.\.\.).Offline data analysis (DAQ).The FLASH HDF5 structure.WebHome]]
137 137  )))