Paper | Title | Page |
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THPPC121 | Feedbacks and Automation at the Free Electron Laser in Hamburg (FLASH) | 1345 |
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For many years a set of historically grown Matlab scripts and tools have been used to stabilize transversal and longitudinal properties of the electron bunches at the FLASH. Though this Matlab-based approach comes in handy when commissioning or developing tools for certain operational procedures, it turns out to be quite tedious to maintain on the long run as it often lacks stability and performance e.g. in feedback procedures. To overcome these shortcomings of the Matlab-based approach, a server-based C++ solution in the DOOCS* framework has been realized at FLASH. Using the graphical UI designer jddd** a generic version of the longitudinal feedback has been implemented and put very fast into standard operation. The design uses sets of monitors and actuators plus their coupling which easily be adapted operation requirements. The daily routine operation of this server-based FB implementation has proven to offer a robust, well maintainable and flexible solution to the common problem of automation and control for such complex machines as FLASH and will be well suited for the European XFEL purposes.
* see e.g. http://doocs.desy.de ** see e.g. http//jddd.desy.de |
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Poster THPPC121 [9.473 MB] | |