| Title |
Multi-Processor based Fast Data Acquisition for a Free Electron Laser and Experiments |
Submitted |
26-JAN-07 10:53 (UTC -06:00) |
| Classification |
Trigger and Data Acquisition |
Modified |
19-MAR-07 16:28 (UTC -05:00) |
| Session |
TDAQ-Tools |
Presentation |
Oral |
| Speaker |
Kay Rehlich |
Paper ID |
TDAQ-Tools05 |
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Paper PDF |
Download |
| Author(s) |
Kay Rehlich (DESY, Hamburg) |
| Abstract |
FLASH (Free electron LASer in Hamburg)) at DESY is a user facility with laser-like radiation source in the VUV and soft X-ray range. It is also a pilot facility for the future XFEL. A fast data acquisition system to support the accelerator operation and the user experiments was developed. The system collects data from hundreds of ADC channels in the range of 1M samples up to 2G samples per second. In addition it allows to collect images from digital video cameras. All the data is collected in a central multi-processor in a shared memory. Several processes are used to calculate e.g. the orbit, energy or photon flux, or are used as feedback loops to improve the stability of the linac. A long time archiving of the collected data from the accelerator and from the FEL experiments on a 24TB disk and finally on a tape is provided. The whole system is integrated in the DOOCS control system of FLASH. |
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