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Changes for page The FLASH HDF5 structure

Last modified by sndueste on 2025-11-19 14:51
From version 102.1
edited by sndueste
on 2025-11-11 11:37
Change comment: There is no comment for this version
To version 104.1
edited by sndueste
on 2025-11-19 14:51
Change comment: There is no comment for this version

Summary

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Content
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1 -{{layout}}
2 -{{layout-section ac:type="single"}}
3 -{{layout-cell}}
4 4  == Contents ==
5 5  
6 6  
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61 61  {{/expand}}
62 62  
63 63  === HDF examples: ===
64 -{{/layout-cell}}
65 -{{/layout-section}}
66 66  
67 -{{layout-section ac:type="three_equal"}}
68 -{{layout-cell}}
69 69  * ADC data as example for **fast** **data** (10 Hz):            
70 70  
71 71  [[image:attach:image2020-11-16_15-26-28.png||height="250"]]
72 -{{/layout-cell}}
73 73  
74 -{{layout-cell}}
75 75  * The //average// FEL pulse energy as example for the **slow** **data**. Here the data is not saved with 10 Hz  - thus not for every FEL pulse train.  The data is typically saved with 1 Hz if the values are changing (like the FEL energy) and every about 20 sec if there is no change for longer time ( e.g. motor set values). Thus to use the data together with the "fast" one, one has to interpolate the data as explained in the examples in the repos below show (e.g. {{code language="none"}}df['GMD_T_average'] = df['GMD_T_average'].interpolate(method='linear'){{/code}})
76 76  
77 77   ( as example only every 10th train ID is listed in the HDF group "index")
78 78  
79 79  [[image:attach:image2020-11-16_15-31-45.png||height="250"]]
80 -{{/layout-cell}}
81 81  
82 -{{layout-cell}}
83 83  * (((
84 84  //zraw// group contains the **original DAQ (DOOCS) names**
85 85  )))
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88 88  
89 89  
90 90  [[image:attach:image2020-11-16_16-26-3.png||height="400"]]
91 -{{/layout-cell}}
92 -{{/layout-section}}
93 93  
94 -{{layout-section ac:type="single"}}
95 -{{layout-cell}}
96 96  {{info}}
97 97  === There are different options that help you to work with the FLASH HDF5 data in Python ===
98 98  
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101 101  
102 102  (% class="Object" %)See also the collection of Demo data and sample scripts : [[Collection of HDF5 sample data from different beamlines>>doc:FLASHUSER.Offline data analysis (DAQ).Collection of HDF5 sample data from different beamlines.WebHome]] and [[DEMO - Working with FLASH data>>doc:FLASHUSER.Offline data analysis (DAQ).DEMO - Working with FLASH data.WebHome]]
103 103  {{/info}}
104 -{{/layout-cell}}
105 -{{/layout-section}}
106 -{{/layout}}
107 107  
108 108  
109 109  
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111 111  
112 112  The complete list for the relation between DOOCS names and HDF5 names for the recordable parameters can be found in [[DESY's Repository>>url:https://stash.desy.de/projects/CS/repos/pah/browse/src/camp/data/channel2HdfName.dat||shape="rect"]].
113 113  
114 -== Most popular FLASH parameters and their names in HDF5, DOOCS and (raw) DAQ ==
96 +== Most popular FLASH parameters and their names in HDF5, DOOCS and (.raw) DAQ ==
115 115  
116 116  {{id name="DOOCSparameters"/}}
117 117