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Data systems for the Linac coherent light source
J Thayer1, D Damiani1, C Ford1
1SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 USA.
Advanced Structural and Chemical Imaging
|March 7, 2017
Summary
Data systems for X-ray Free-Electron Laser (FEL) experiments at the Linac Coherent Light Source (LCLS) reliably handle high-throughput data. The Photon Science Analysis (psana) software facilitates user analysis of experimental data and metadata.
Area of Science:
- X-ray science
- Particle accelerators
- Data science
Background:
- High-throughput data acquisition is crucial for modern X-ray Free-Electron Laser (FEL) experiments.
- The Linac Coherent Light Source (LCLS) generates large volumes of experimental data requiring robust management systems.
Purpose of the Study:
- To describe the data systems developed for X-ray FEL experiments at LCLS.
- To detail the software packages used for data analysis and monitoring.
Main Methods:
- Implementation of data acquisition systems capable of handling peak throughputs of 5 GB/s.
- Development and description of the Analysis and Monitoring Implementation (AMI) and Photon Science Analysis (psana) software packages.
- Archiving of experimental data and metadata for user accessibility.
Main Results:
- The described data systems reliably acquire and transport shot-by-shot data.
- The psana software package provides open-source access for experimental data analysis.
- Metadata is archived alongside experimental data for comprehensive analysis.
Conclusions:
- The LCLS data systems are effective in managing high-volume experimental data.
- The psana software enhances data accessibility and analysis for users of X-ray FEL facilities.
