Wiki source code of Before beamtime Checklist
Version 2.1 by sendels on 2019/06/26 08:21
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| 1 | = Questions to consider before the beamtime = | ||
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| 3 | Weeks before the actual beamtime the Usergroup should think about the needs for the experiment and get in contact to the DAQ / IT group at FLASH and define several boundary conditions: | ||
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| 5 | * What kind of data you want to record in the FLASH DAQ? | ||
| 6 | ** Several options of the photon diagnostic are available which are NOT operated as standard (VLS, OPIS, ... see [[Photon Diag pages~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:http://photon-science.desy.de/facilities/flash/photon_diagnostics/index_eng.html||shape="rect"]] | ||
| 7 | ** What kind of ADC is the best one for you? Are amplifiers needed? what sample rate, how many channels ... | ||
| 8 | ** [[Cameras~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/FLASHWiki/Wiki.jsp?page=Camera%20server||shape="rect"]] can be integrated in the FLASH DAQ system - talk to the experts (well in advance !) if you plan to use cameras. | ||
| 9 | ** For detector systems such as pnCCD imaging- detectors and ion/electron spectrometers available at the CAMP end-station please contact us to discuss your particular requirements (well in advance !). | ||
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| 13 | * Do you have own detectors to be recorded ? | ||
| 14 | ** It has to be checked that they can be stored on the FLASH data storage (gpfs) | ||
| 15 | ** They could probably be included in the FLASH DAQ system - _this needs sufficient lead time. Talk several WEEKS before the beam time to the local contact / experts _ | ||
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| 19 | * What parameters you need to monitor life during the beamtime? | ||
| 20 | ** how you plan to monitor the parameters (jDDD, Matlab, Python, Labview) ? | ||
| 21 | ** do you need online treatment of data ( averaging, integration of peaks ...) ? | ||
| 22 | ** do you have to control Hardware from FLASH ( e.g. delaylines ...). Do you need scans with online display ? | ||
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| 26 | * data analysis needs | ||
| 27 | ** Do you need nearOnline HDF5 files for your (semi-online) analysis during the beamtime. | ||
| 28 | ** Which parameters do you need for your (semi-online) analysis ? | ||
| 29 | ** how do you want to do analyze your data ? Can we find scripts from other users servering most of your needs? | ||
| 30 | ** How much computational power will the analysis need (can we use the analysis servers at the beamline or do we have to use more powerfull recources) ? | ||
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| 34 | * Data access after the beamtime: | ||
| 35 | ** data recorded with the FLASH DAQ will have to be moved to a long time (tape) storage few month after the beamtime. During / shortly after the beamtime it has to be decided where to put the data. | ||
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| 39 | It is recommended to fill in a [[beamtime preparation questionnaire>>attach:FLASHUSER.User overview@Before_beamtime_questionnaire.pdf]] together with your corresponding local contact. | ||
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| 43 | ---- |