Sydor Diamond Beam Position Monitors Overview
Sydor’s Diamond Beam Position Monitors (DBPMs) offer one of the world's most precise position monitoring solution, with resolutions down to 0.1% of the beam diameter. Sydor DBPM's are available in a variety of configurations to meet beamline requirements and optimize its performance. Each DBPM is built to each beamline's parameters including the beam energy range, environmental conditions, and mounting requirements. Sydor's engineers then customize device parameters including diamond thickness, contact metallization, inter-contact gaps (street size), and can build to include any required cooling capabilities.
DBPM's are typically supplied with 4 channel outputs to measure position, flux, and timing information. However, for applications where only flux and/or timing information is required, a single channel configuration may be provided.
Sydor's DBPM's include designs for ambient to ultra-high-vacuum environments. Each design has a small form factor for space limited installations. Very thin, low-absorption DBPM's are designed to stay inline at all times. When this is not practical, Sydor offers packages designed with an offset beam aperture. The device can be offset with a 7 mm translation stage to remove the device from the beam. This solution is ideal for extremely coherent or soft/tender x-ray beamlines.
Each DBPM is manufactured using electronic-grade single-crystal CVD diamond which is required to avoid non-linearities that any diamond imperfections will create. The properties of these highquality diamonds enable quick charge collection of single incidence x-ray bunches with resolution that allows individual bunches to be resolved.
DBPM's offer a quick return on investment, reducing set-up time resulting in labor savings. DBPM's are useful upstream or downstream with designs available for white, pink, or monochromatic x-rays. Data can be used for beam steering or to adjust other peripheral equipment such as mirrors or the sample. Ultimately, this information can correct for drift, temperature changes, or other factors impacting beamline stability.
Sydor's readout electronics provide bias, 4-channel readout, and the Sydor Advanced Electrometer adds intelligent closed loop control capabilities. Software providing Fast Fourier Transforms of the data can be utilized to pinpoint vibrations issues, improve beamline control loop tuning, and can correct other frustrating, but inevitable instabilities.
Features:
Designed for continuous beam monitoring with a linear response across specified x-ray energies with nanometer precision
Manufactured to be compact down to 25 mm x 25 mm with options for ambient (purged) to UHV environments
Optimized for each user's requirements and built-to-order
Designed to accommodate demands of next generation light sources due to high power density options
Applications:
Continuous collection of beam stability, flux, angle, and/or position data
Identification and fast analysis of alignment, vibration, or malfunctioning peripheral equipment
Automated feedback control with Sydor's Advanced Electrometer
Detection and prevention of drift that can result in positional/flux errors
Product Specifications
Beam Characteristics
Beam Diameters:
Nanometers up to 2.75 mm
Maximum Absorbed Power: ~200 mW. Options:
passive cooled to < 5 W, active cooling for white/high power density applications
In-Situ Operation X-Ray Energies (>70% transmission):
> 5 keV (see transmission curves). Stage-mounted versions have short stage stroke for full beam clearance.
Detectable Beams:
Photons, electrons, and protons
Beam Types:
From low flux bench top sources to Synchrotrons and X-FELs
Sensor
Material:
Electronic-grade single crystal CVD diamond
Thickness: Standard nominal:
50 μm (others available on request)
Active Area:
3 mm
Contact Thickness:
Metallization dependent, ~30 nm typical
Contact Material:
Pt, Rh, Al, and Ti available
Available Formats:
Intensity monitors have a single metalized contact on each side. Position monitors have a single metalized contact on the one side (Bias) and four metalized contacts on the opposite side. Each quadrant is separated by a 20 µm gap (other gap sizes available upon request).
Contamination protection:
Protective sensor overcoating improves ability to clean surfaces
Inert environment options (non-vacuum):
Self-contained inert gas chamber with slow bleed Kapton windows
Monitor Specifications
Position Resolution:
0.1% of beam diameter (down to 25 nm)
Frame Rate:
DC to frequencies compatible with modern synchrotron rates (< 500 MHz)
Bias Voltage Range:
+10 or -10 VDC
Operating Environment:
Inert at 1 bar down to UHV
Operating Temperature:
10ºC to 60ºC
Bake Out Temperatures:
Up to 120ºC
Readout Software
描述 [描述] Sydor的钻石光束位置监视器(DBPMs)提供了世界上最精确的位置监测解决方案之一,分辨率可达光束直径的0.1%。