Turnkey instrumentation and software suite specially designed to easily provide the capabilities for simultaneously controlling position (X, Y) and intensity (I0) of the photon beam in synchrotron radiation X-ray beamlines.
The Beam Enhanced Stabilization Technology (BEST) by CAEN ELS is the only complete turnkey system for beam position intensity stabilization.
An extensive set of software applications, plugins and tools combined with powerful hardware allows users to perform and optimized their experiments and characterization on X-ray beamlines around the world.
The BEST system is designed on a distributed architecture that allows installing all electronic building blocks as close as possible to the corresponding device – e.g. a piezo driver or a photon BPM. The system is composed by three main building blocks:
The FPGA-based hardware architecture allows performing the control algorithms at a maximized speed and with very low latency in order to guarantee full effectiveness of the BEST correction performance over a frequency spectrum up to several kHz. The slower and non-critical tasks (i.e. configuration commands) are separately performed at a higher level on the Linux OS Central Unit with dedicated software.
The readout block is represented by the TetrAMM device: a 4-channel bipolar picoammeter with an integrated HV bias voltage source that can be connected directly to a four-quadrant phBPM detector – e.g. diamond detector, ion chamber or quadrature diodes.
This readout block has an independent 10/100/1000 Mbit Ethernet interface for standard communication and can be also used as a stand-alone readout unit. In addition to this, the TetrAMM has a high-throughput and low-latency SFP link that guarantees interface to the control unit.
The control and interface unit is the “brain” of the entire system and it is made by a 19″-1U rack that interconnects and interfaces to the other building blocks and gives access and control to the users directly via a Gigabit Ethernet interface. The control interface has a dedicated application that allows to set the parameters to configure the beamline system (detectors, piezo actuators, geometry) and control the photon beam behavior.
The EPICS IOC is also freely available to our users.
Model
WBEST2HV05PX
Control Interface
10/100/1000 Mbit Ethernet TCP-IP
BEST Application
Local GUI
Standard Configuration
1 x TetrAMM picoammeter
1 x PreDAC actuator unit (2-channel)
1 x BEST control and interface central unit
Extended Configuration
2 x TetrAMM picoammeters
1 x PreDAC actuator unit (up to 4 channels)
1 x BEST control and interface central unit
Control and Interface Unit OS
Linux OS (Ubuntu 20.04)
Compensation Loops
Horizontal position (X)
Vertical position (Y)
Intensity (I0) - optional
Detector Configurations
Quadrature detectors (45° or 90°)
Loop Communication Interface
SFP - Small Form Factor Pluggable
Additional Features
- Firmware Remote Upgrade for each building block
- EPICS IOC
- TetrAMM Oscilloscope "Pyscope" (with FFT and CSP)
- Frequency Analysis Tool (included in the Local GUI)
- Data Logger
Ordering code
Description
Action
WBEST2HV05PX
BEST – 2-ch PreDAC, TetrAMM with +500V HV, Central Unit with embedded control system and EPICS IOC
Last reviewed: 2022-12-09 ⓘ More infoRevision: 1.7
Last reviewed: 2023-12-14 ⓘ More infoRevision: 3.2
Last reviewed: 2023-02-03 ⓘ More infoRevision: 1.1
Last reviewed: 2023-02-03 ⓘ More infoRevision: 1.8.17
Last reviewed: 2023-02-03 ⓘ More infoRevision: 1.0.32
Last reviewed: 2023-02-09 ⓘ More infoRevision: 1.5
Last reviewed: 2024-02-05 ⓘ More infoRevision: 1.2
Updated: 2023-01-23 - 3.88 MB ⓘ More info Version: 1.2.20
Updated: 2023-02-09 - 3.74 MB ⓘ More info Version: 1.0.04
Updated: 2024-02-28 - 44.16 MB ⓘ More info
Version: 2.2.1
OS: Linux
Updated: 2024-02-28 - 42.43 MB ⓘ More info
Version: 2.2.1
OS: Windows
High Precision Additional DAC channel for PreDAC