Overview
High-precision, low-latency digital BPM processor for electron synchrotron facilities, based on 1U 19-inch chassis.
Features
- High position resolution
- Low data processing latency, with real-time FA data updates in fast feedback mode
- Complete data buffering: raw ADC data, TBT, FA and SA data
- Multiple trigger modes: first-turn, turn-by-turn and post-mortem analysis
- Proprietary pilot-tone compensation for excellent channel-to-channel consistency
- Built on Xilinx Zynq UltraScale+ MPSoC, supporting user application development
- Rich data transmission and debugging interfaces
Specifications
| Parameter | Performance | Remark |
|---|---|---|
| Input Signal Bandwidth | 500 ± 10 MHz | Filter center frequency customizable |
| Input Signal Power | < -4 dBm | — |
| A/D Conversion | 210 MSps / 16-bit | — |
| TBT Position Resolution | < 500 nm @ 624.75 kHz | Data update rate customizable |
| FA Position Resolution | < 120 nm @ 20 kHz< 160 nm @ 50 kHz | Data update rate customizable |
| SA Position Resolution | < 50 nm @ 10 Hz | Data update rate customizable |
| FA Position Computation Latency | < 80 μs | — |
| Position Measurement Temperature Drift | < 0.5 μm/°C | — |
| Beam Current Dependence | < 1 μm (input power -34.4 dBm to -22.4 dBm)< 5 μm (input power -74.4 dBm to -34.4 dBm) | — |
| Data Buffer | 8 GB | DDR4 |
| Data Storage | 32 GB | SD card, capacity expandable |
| Cooling | Air cooling | Fan speed adjustable for temperature control |
| Power Supply | 12 VDC | — |
Applications
The Hefei Advanced Light Facility (HALF) is a world-leading fourth-generation synchrotron radiation source in the low-energy range, based on a diffraction-limited storage ring. With a storage ring energy of 2.2 GeV and a natural horizontal beam emittance of about 86 pm·rad, it ranks among the most advanced facilities of its kind worldwide.
We developed and delivered 252 digital beam position monitor processors to the Hefei Advanced Light Facility (HALF), where they are used for high-precision beam position measurement and low-latency fast orbit feedback in the HALF storage ring.