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A kHz heat-load shutter for white-beam experiments at synchrotron sources
Milan Gembicky1, Shin Ichi Adachi, Philip Coppens
1Chemistry Department, State University of New York at Buffalo, Buffalo, NY 14260-3000, USA. gembicky@buffalo.edu
Journal of Synchrotron Radiation
|April 17, 2007
Summary
A novel heat-load shutter operates at high frequencies (kHz) and short window times (µs-ms). This water-cooled device efficiently absorbs 99% of white beam heat, ensuring stable operation of synchronized equipment like pulse selectors.
Area of Science:
- Experimental Physics
- Instrumentation
- Materials Science
Background:
- High-power X-ray sources generate significant heat loads.
- Effective thermal management is crucial for sensitive experimental equipment.
- Existing shutters may lack the speed or heat absorption capacity for advanced applications.
Purpose of the Study:
- To describe a novel heat-load shutter for high-frequency operation.
- To demonstrate its capability in managing heat from white X-ray beams.
- To validate its performance in synchronized experimental setups.
Main Methods:
- Design and implementation of a water-cooled heat-load shutter.
- Characterization of shutter frequencies (1-10s kHz) and window times (10 µs - 1 ms).
- Integration and synchronized operation with a Jülich pulse-selector (946 Hz).
Main Results:
- The shutter absorbs approximately 99% of the generated white beam heat.
- Continuous three-day operation showed stable pulse-selector temperature.
- Successful synchronization with a 946 Hz pulse-selector was achieved.
Conclusions:
- The developed heat-load shutter effectively manages high thermal loads at high frequencies.
- Its robust performance ensures stable operation of synchronized experimental components.
- Interchangeable chopper discs offer flexibility for diverse experimental requirements.
