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Libera Hadron is a BPM signal processing system developed especially for the needs of the hadron synchrotrons. It can be used for position measurement, tune measurement, and detailed beam studies.
Benefits:
Data processing:
The complete processing of data and its storage in buffers are initiated by the external trigger event signal. The data is stored in two 2 GB buffers which can be read out on the user’s request. Through real time signal processing algorithms, the system automatically detects individual bunches, measures the transversal positions at high resolution, the charge and the arrival time. The measurements can be organized in bunch maps in order to provide a global representation of the beam dynamics over long periods of time. Both Slow data and Fast data are available for the implementation of low latency feedback systems.
DSP AND DATA PATHS
Three standalone algorithms are implemented to support different types of pickup signal:
Libera Hadron provides six basic data paths (raw ADC data, Bunch-by-bunch, FFT, FFT peak, Fast data and Slow data). GbE (optional) Fast data is available over SFP on the GDX using the GbE protocol. Fast data and Slow data are stream type and can be delivered to the user simultaneously: Fast data at 10 kHz and Slow data at 10 Hz. All the other data paths are data on demand type.
Interfaces:
The hardware is based on MTCA standards, with a proprietary chassis, which accommodates up to four full-width and two half-width modules. It includes a high performance back-plane which satisfies even the most demanding applications. In addition there is a platform management controller and a COMe module which both support different CPU options.
Interfaces:
Parameter | Value |
---|---|
General product code | LHAD |
Number of input channels | 16 (4 per module) |
BPM slots | 1 - 4 |
Supported input frequency range | <55 MHz |
A/D conversion | 250 MHz/16 bit |
Cooling | Active (fans) |
Power supply | 110/220 V, 250 W |
Timing signals | Electrical (4)/Optical |
Fast data links | RJ-45 & SFP |
Maximum input signal* | <2 V peak pulse voltage * |
Input gain/attenuation | Fixed |
Temperature drift, typical | <2 μm/°C |
Position RMS at bunch-by-bunch data rate | 6 μm ** |
Position RMS at fast 10 kHz data rate | <1 μm ** |
Position RMS at slow 10 Hz data rate | <1 μm ** |
Position RMS at 1 MHz data rate | / |
Memory size per module | 4 GB |
Dimensions | H: 2 U, W:19" (rack mountable), D: 310mm |
* Can be extended/customized depending on use requirements
** Measured with K=10mm
Bunch-by-bunch processing | Yes |
Real-time data streaming | Optional* |
Slow data | Yes |
Gain control | Libera Amplifier 110, external variable gain amplifier |
Selectable processing window | Yes |
Processing delay | Yes |
Multi-chassis synchronization | Reference clock with PLL |
Data time stamping | Based on external RF clock |
Interlock detection and output | No |
Postmortem capability | Yes |
FFT/FFZ peak | Yes |
Single-pass measurement | Yes |
Additional Digital I/O channels and Analog output | No |
Closed Orbit Feedback Application | Yes, available with extension |
* Requires additional module: GDX module
The GDX module extends the interconnection capabilities of the BPM electronics.
Libera Hadron is used at the following labs:
Can’t find your discipline or profession? Write to us and we’ll
do our best to work something out.
We adjust our services to your needs.