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Libera Spark EL
Libera Spark is a compact beam position processor that offers high-precision position measurement of different beam types (electrons, protons, ions, etc.). It is optimized to work with button, stripline and shoe-box pickups. The digital signal processing (DSP) supports detailed adjustment of the processing window and position measurement in various regimes and bandwidths.
Depending on the requirements and the Libera Spark version, the data available to the user ranges from bunch-to-bunch, turn-by-turn to slow data stream.
Product Description
Papers
Tutorial
Testimonials
References
Benefits:
- Best price/performance ratio
- Compact and robust design
- Power over Ethernet
- Source code available
- No maintenance required
- EPICS & Tango & MATLAB ready
Interfaces:
Front panel
Back panel
Libera Spark EL Capabilities
| General product code | LSEL |
| BPM slots | 1 |
| Supported input frequency range | <750 MHz |
| A/D conversion | 125 MHz/14 bit |
| Cooling | Passive |
| Power supply | PoE |
| Timing signals | Electrical (up to 3) * |
| Calibration | Manual/Static |
| Fast data link | RJ-45 |
| Maximum input signals* | <5 V peak pulse voltage |
| Input gain/attenuation | Programmable, 31 dB |
| Temperature drift, typical | 0.3 μm/°C |
| Position RMS at turn-by-turn data rate | / |
| Position RMS at fast 10 kHz data rate | / |
| Position RMS at slow 10 Hz data rate | / |
| Position RMS at single bunch | 4 μm ** |
| Position RMS at macro pulse/continuous wave | <4 μm |
| Dimensions | H: 1 U, W: 9.5" (rack mountable with a kit), D: 210 mm |
* Can be customized
** Measured with K=10 mm
Libera Spark EL Functionalities
| Bunch-by-bunch processing | Yes |
| Turn-by-turn processing | No |
| Real-time data streaming | Optional * |
| Slow data | No |
| Gain control | Yes |
| Multi-chassis synchronization | Trigger-based |
| Data time stamping | Trigger-counter |
| Interlock detection and output | Optional ** |
| Postmortem capability | No |
| Single-pass measurement | Yes |
| Frequency down-conversion | Optional *** |
| Additional Digital I/O channels and Analog output | Optional ** |
| Closed Orbit Feedback Application | No |
* Requires additional modules: GDX module
** Requires additional modules:
*** Requires additional modules: Libera DWC
Libera Spark EL
Beam position monitoring system and beam commissioning at the APS-U Storage Ring (IPAC 2024)
Commissioning results of the new BPM electronics of the ESRF booster synchrotron* (IPAC’15, Richmond, VA, USA)
For demonstration purposes, Libera Spark can be fully controlled with a Qt Graphical User Interface. It uses a netcat utility that connects to Libera Spark via SCPI set/read commands. Check example figures and tutorial videos.
Libera Spark – ADC
Libera Spark – FFT
Libera Spark – Parameters
Libera Spark – TBTXY
Overview
Getting started with GUI
Set up the custom ADC sampling frequency
ADC data readout
Libera Spark EL is used at the following labs:
- ANKA – Karlsruhe Institute of Technology – Forschungszentrum Karlsruhe (KIT-FZK), Germany
- APS – Argonne National Laboratory (ANL), USA
- c-ERL, PF-AR, KEK B – The High Energy Accelerator Research Organization-KEK, Japan
- CLS – Canadian Light Source Inc.(CLS), Canada
- ELETTRA – Sincrotrone Trieste , Italy
- HLS, HLS II – National Synchrotron Radiation Laboratory (NSRL), China
- INDUS II – Raja Ramanna Centre for Advanced Technology (RRCAT), India
- PLS II, EUV – Pohang Accelerator Laboratory (PAL), South Korea
- SACLA, SPring-8 – Japan Synchrotron Radiation Research Institute (JASRI), Japan
- Siberia II – Kurchatov Institute-NRC (KI), Russia
- SPARC – Laboratori Nazionali di Frascati dell’INFN, Italy
- SPEAR3 – Stanford Linear Accelerator Center (SLAC), USA
