Products / X-Ray Diagnostics / Diamond XBPM® Monitor
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A4 DIAMOND XBPM® MONITOR
Monitoring X-ray Beams with Highest Precision
The A4 Diamond XBPM® Monitor provides high-precision X-ray beam diagnostics. It is used at experimental beam lines of Synchrotron Light Sources for beam position and beam intensity monitoring. The high transparency and exceptional spatial resolution makes it perfectly suited as monitor for soft as well as hard X-ray beams.

The A4 Diamond XBPM® Monitor consists of a UHV compatible B9 Diamond XBPM® Detector and a XANDY AX108 real-time readout system with included amplifiers (1 pA - 1 mA), bias supply for the XBPM® Detector, GUI and PID controller. An API is provided for the integration in the control system. Cables and connectors of 1 m length are included.

The Diamond XBPM® Monitor provides real-time diagnostics of the X-ray beam position and intensity.
Analogue feedback by three 16-bit DACs enable feedback loops to beam line elements.
FEATURES
Detector type:
Diamond XBPM® Detector
Sensor thickness:
20 μm | 50 μm
90% Transmission:
5.8 keV | 7.8 keV X-rays
Position resolution:
10-3 of the X-ray beam size
Amplifiers (4 channels):
pA ... mA, embedded in XANDY
OPTIONS
The included B9 XBPM® Diamond Detector can be provided with:
  • 20 μm or 50 μm thickness.
  • SMAm or BNCm UHV vacuum compatible connectors.
  • in small footprint design for installation close to the sample.
ADDITIONAL PRODUCT INFORMATION
The A4 Diamond XBPM® Monitor can be adapted to the specific needs of the experimental beam line. The standard Diamond XBPM® Monitor covers the X-ray intensity range from 106 to 1016 photons/s and can be adapted for higher intensities.

The response of a 20 μm XBPM® detector as function of beam intensity and energy is shown in the Figure together with the switch amplifier stages. The Amplifiers are configured to optimally protect the μ-gap® of the XBPM® during operation.
XANDY is the data acquisition system, power controller and monitoring unit for the Diamond XBPM® detector. XANDY is operated via the web-based GUI or via an API, which enables the integration in the local control system.

The embedded PID controller, accessible via the API, allows beam position control using the two analogue feedbacks DAC 1 & DAC 2. The measured beam intensity is provided as analogue feedback via DAC 3 with 10 MHz.
DOWNLOAD THE PRODUCT INFORMATION
A4 Diamond XBPM® Monitor

RELEVANT PROJECTS
XBPM at Diamond Light Source Ltd.
The Diamond XBPM detector was developed in cooperation with the Diamond Light Source Ltd., Oxford/UK, with the goal to provide a precision instrument with high X-ray transmission. Several CIVIDEC Diamond XBPM are in use at experimental beam lines of DLS.
http://www.diamond.ac.uk
RELEVANT PUBLICATIONS
Diamond XBPM® for feedback control of the X-ray beam position
J. Melbinger, T. Fragner, E. Griesmayer, S. Kalbfleisch, H. Frais-Kölbl, C. Weiss., J. Phys.: Conf. Ser. , 3010, 012075, 2025

DOI:10.1088/1742-6596/3010/1/012075

Impact Of Diffusion On The Ionisation Channel Of A Diamond XBPM Detector
C. Weiss, et al., Proceedings of the XRM Conference Taiwan, 2022

Applications of single-crystal CVD diamond XBPM detectors with nanometre x-ray beams
E. Griesmayer, P. Kavrigin, C. Weiss, and S. Kalbfleisch, AIP Conference Proceedings, 2054, 060052, 2019

DOI:10.1063/1.5084683

The Use of single-crystal CVD Diamond as a Position sensitive X-Ray Detector
E. Griesmayer, C. Bloomer, P. Kavrigin, C. Weiss, Proceedings of IBIC2016, Barcelona, Spain, MOPG14, 71-74, 2016

ISBN 978-3-95450-177-9